DIAGNOSIS AND TESTING

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1 Handles, Locks, Latches and Entry Systems DIAGNOSIS AND TESTING Locks, Latches and Entry Systems Refer to Wiring Diagrams Cell 117 for schematic and connector information. Special Tool(s) Principles of Operation Power Lock 73III Automotive Meter 105-R0057 or equivalent Worldwide Diagnostic System (WDS) Vehicle Communication Module (VCM) with appropriate adapters, or equivalent diagnostic tool Auto-Lock Enable/Disable Using the RKE keypad A manual enable/disable mode allows the auto-lock feature to be turned off and on. To enable or disable the auto-lock using the RKE keypad: 1. Enter the 5-digit permanent entry code into the RKE keypad. 2. Within 5 seconds of entering the code, press and hold the 7/8 button on the RKE keypad. 3. Within 5 seconds of Step 2, and while holding the 7/8 button, press the 3/4 button on the RKE keypad and release it. 4. Within 5 seconds of Step 3, release the 7/8 button on the RKE keypad. If the auto-lock feature is disabled, the horn chirps once. If the auto-lock feature is enabled, the horn chirps once shortly and then sound a 2nd time for a longer sound of the horn once the above sequence is completed. Auto-Lock Enable/Disable Using the The power lock/unlock feature requests all of the Ignition Switch vehicle doors, including the liftgate, be locked or unlocked upon a customer request from any interior Another way to turn the auto-lock feature off/on is door lock switch in the vehicle. The power door by following this series of steps: locking system functions independently of ignition 1. Close all doors. status or vehicle speed. When the vehicle security 2. Confirm that the key is in the OFF position. module receives an unlock/lock command from any door lock control switch, the vehicle security 3. Turn the key from OFF to ON. module activates relays internal to the module to 4. NOTE: Steps 4 through 8 must be carried out supply the correct power and grounds for the door within 30 seconds. lock actuators. Press UNLOCK 3 times. Auto-Locking 5. Turn the key from ON to OFF. The auto-locking feature locks all doors when all 6. Press UNLOCK 3 times. doors, including the liftgate, are closed, the brake 7. Turn the key from OFF to ON. pedal was pressed with the key in the ON position, 8. Verify that the horn chirps. This indicates the and a vehicle speed of 8 km/h (5 mph) or higher is enable/disable mode is now ready to accept achieved. This feature relocks the doors (if any program changes. doors are open) after the brake pedal is pressed, once all doors are read as closed, and the vehicle 9. Press UNLOCK once to command the vehicle speed exceeds 8 km/h (5 mph). The door ajar security module to toggle the auto-lock/relock switches are wired directly to the vehicle security feature OFF. module. The auto-locking feature can be 10. Press LOCK once to enter the command. enabled/disabled through module configuration, the diagnostic tool, the RKE keypad, the instrument panel message center (if equipped), or the ignition switch. Copyright 2004, Ford Motor Company Last updated: 12/12/2007

2 Handles, Locks, Latches and Entry Systems Verify that the horn chirps 1 time. There should only be 1 chirp indicating that the auto-lock/relock feature has been disabled. If 1 chirp is heard followed by a longer sound of the horn, the auto-lock/relock feature has just been enabled. Return to Step Turn the key to the OFF position to exit the enable/disable mode. 13. Exit the vehicle and verify that the horn chirps once to indicate that the feature has been changed and that auto-lock/relock has been disabled. Smart Unlock The smart unlock feature prevents the driver door from locking with the key in the ignition lock cylinder. When the vehicle security module receives a LOCK command from a door lock switch with the key in the ignition lock cylinder and the driver door open, the vehicle security module commands the driver door to UNLOCK. Remote Keyless Entry (RKE) Transmitter Lock/Unlock Control Unlock The remote control feature provides lock/unlock functions independently of ignition status, vehicle speed, or transmission position. The remote control feature provides a 2-step process for unlocking the doors. Upon receipt of the first request for unlocking the doors, the remote control feature requests the vehicle security module to unlock the driver door only. If another unlock request is received within 3 seconds of the first, the remote control feature requests that all doors be unlocked. Remote Keyless Entry (RKE) Transmitter Lock/Unlock Control Lock The remote control feature requests that all the doors be locked when the LOCK button is pressed. On any press of the lock button with all doors closed, the remote control feature requests 1 flash of the parking lamps. If any door is ajar, no flash occurs, indicating it locked all the doors but 1 or more doors are ajar. As soon as the last door is closed, 1 flash of the parking lamps occurs. If 2 presses of the lock button are received within 3 seconds, the horn chirps once, the parking lamps flash twice to indicate that all the doors are closed and locked. If any door is ajar when the second lock request is received within 3 seconds of the first, the remote control feature requests the horn chirp twice without flashing the parking lamps to indicate it locked all the doors but 1 or more doors are ajar. When the key is in the RUN or START position, no parking lamp flashes or horn chirp confirmations occur. Panic Alarm The panic alarm feature controls activation of the panic alarm, providing audible and visual alarms that are evident from the exterior of the vehicle. The panic alarm feature requests that the parking lamps and horn are flashed until deactivation. The flashing of the outputs occurs synchronously. Activation of the panic alarm is accomplished by pressing the PANIC button on a RKE transmitter whenever the key is in the OFF or ACC position. At all other times this feature is disabled. Deactivation of an active PANIC alarm is accomplished by: a second press of the RKE transmitter PANIC button, the ignition is switched out of the OFF or ACC position, or a period of 2 minutes and 45 seconds has elapsed since the initial activation. Remote Keyless Entry (RKE) Keypad The RKE keypad, located on the exterior of the driver door, provides a method for the customer to access the vehicle without a key or RKE transmitter. The RKE keypad feature: locks all doors. unlocks only the driver door. unlocks all doors.

3 Handles, Locks, Latches and Entry Systems programs/erases the customer key code. Locking the Doors with the RKE Keypad enables/disables auto-locking. System It is not necessary to enter the factory set or liftgate glass personal code prior to locking all doors. To lock all The RKE keypad feature operates independently of doors, press the 7/8 and 9/0 buttons at the same ignition status, vehicle speed, or transmission time. position. When a RKE keypad button is pressed, the keypad buttons illuminate to provide better Inspection and Verification visibility. If 7/8 and 9/0 are pressed or 5 seconds 1. Verify the customer concern. have elapsed since the last button press, the 2. Visually inspect for obvious signs of illumination is turned off. mechanical or electrical damage. Each vehicle equipped with a RKE keypad is programmed with a 5-digit entry code. This code is Visual Inspection Chart provided to the customer on a wallet card in the Mechanical Electrical Owner Literature package. In addition, this code is available through a diagnostic tool and is printed Binding latches Central junction box (CJB) fuse(s): on the vehicle security module label. When entering 5 (7.5A) codes, each digit must be entered within 5 seconds 20 (30A) of the previous button press. Circuitry Relays Anti-Scan Feature Remote keyless entry (RKE) transmitter To provide added security, the RKE keypad is RKE keypad disabled for 1 minute after 35 button presses Vehicle security module without a valid entry code being entered. The keypad flashes during this 1-minute mode with all functionality disabled except for 7/8 and 9/0 still 3. If an obvious cause for an observed or reported being allowed to lock the vehicle. concern is found, correct the cause (if possible) before proceeding to the next step. Anti-Scan is turned off after any of the following events: 4. If the diagnostic tool does not power up, refer to the diagnostic tool manual. 1 minute of RKE keypad inactivity has elapsed. 5. Carry out the diagnostic tool data link test. If The RKE transmitter UNLOCK button is pressed. the diagnostic tool responds with: The key is turned to the ON position. CAN or ISO; all electronic control units, no response/not equipped, refer to Section Unlocking the Doors with the RKE Keypad System response, not equipped for vehicle To unlock the driver door, enter either the factory security module, refer to Section set code or the personal code (each digit must be pressed within 5 seconds of the prior digit). The System passed, retrieve and record the interior lamps will illuminate. continuous diagnostic trouble codes (DTCs), erase the continuous DTCs, and carry out To unlock all doors, enter either the factory set code the self-test diagnostics for the vehicle or the personal code (driver door unlocks) and press security module. the 3/4 button within 5 seconds. 6. If the DTCs retrieved are related to the concern, To unlock the liftgate glass, enter either the factory go to the Vehicle Security Module Diagnostic set code or the personal code (each digit must be Trouble Code (DTC) Index to continue pressed within 5 seconds of the prior digit) and diagnosis. press the 5/6 button within 5 seconds.

4 Handles, Locks, Latches and Entry Systems If DTCs are retrieved that are not found in the 8. If no DTCs related to the concern are retrieved, following Vehicle Security Module Diagnostic GO to Symptom Chart to continue diagnosis. Trouble Code (DTC) Index, refer to the Master Vehicle Security Module Diagnostic Trouble Code (DTC) Index in Section Vehicle Security Module Diagnostic Trouble Code (DTC) Index DTC Description Source Action B1300 Power Door Lock Circuit Failure Vehicle Security GO to Pinpoint Module Test A. B1311 Power Door Unlock Circuit Failure Vehicle Security GO to Pinpoint Module Test A. B1321 Driver Door Ajar Circuit Short to Battery Vehicle Security GO to Pinpoint Module Test D. B1329 Passenger Door Ajar Circuit Short to Battery Vehicle Security GO to Pinpoint Module Test D. B1333 Liftgate Ajar Circuit Short to Battery Vehicle Security GO to Pinpoint Module Test D. B1337 Door Ajar RR Circuit Short to Battery Vehicle Security GO to Pinpoint Module Test D. B1573 Door Ajar LR Circuit Short to Battery Vehicle Security GO to Pinpoint Module Test D. B2276 Less Than 2 Transmitters Programmed Vehicle Security GO to Pinpoint Module Test E. B2425 Remote Transmitter Out of Sync Vehicle Security GO to Pinpoint Module Test E. B2667 Liftglass Release Switch Circuit Failure Vehicle Security GO to Pinpoint Module Test J. B2675 Keypad_B Switch Circuit Failure Vehicle Security GO to Pinpoint Module Test B. B2676 Keypad _C Switch Circuit Failure Vehicle Security GO to Pinpoint Module Test B. B2695 Keypad_A Switch Circuit Failure Vehicle Security GO to Pinpoint Module Test B. Symptom Chart Symptom Chart Condition Possible Sources Action A single/more than one door Door lock control switches GO to Pinpoint Test A. lock is inoperative Door lock actuator Door lock hardware Circuitry Vehicle security module The doors do not lock/unlock Remote keyless entry (RKE) GO to Pinpoint Test B. using the remote keyless keypad entry keypad RKE transmitter Vehicle security module

5 Handles, Locks, Latches and Entry Systems Symptom Chart Condition Possible Sources Action The doors do not lock/unlock Remote keyless entry (RKE) GO to Pinpoint Test C. using the remote keyless transmitter battery entry transmitter RKE transmitter RKE transmitter programming Aftermarket system High-power devices TV/radio transmission towers Vehicle security module The auto-lock does not Door ajar switches GO to Pinpoint Test D. operate correctly Controller area network (CAN) Vehicle security module Remote keyless entry Remote keyless entry (RKE) GO to Pinpoint Test E. transmitter is out of transmitter synchronization RKE transmitter button pressed a substantial amount of times while outside the range of the vehicle Vehicle security module Panic feature is Remote keyless entry (RKE) GO to Pinpoint Test F. inoperative/does not operate transmitter correctly Circuitry Vehicle security module The remote keyless entry Remote keyless entry (RKE) GO to Pinpoint Test G. keypad illumination is keypad inoperative RKE transmitter Vehicle security module The smart unlock does not Door lock control switches GO to Pinpoint Test H. operate correctly Driver door ajar switch Controller area network (CAN) Vehicle security module The remote keyless entry Aftermarket system GO to Pinpoint Test I. transmitter has poor range High power devices performance TV/radio transmission towers Remote keyless entry (RKE) transmitter Vehicle security module The liftgate window glass Liftgate window glass switch GO to Pinpoint Test J. release is inoperative Remote keyless entry (RKE) transmitter Liftgate window glass release actuator Vehicle security module

6 Handles, Locks, Latches and Entry Systems Pinpoint Tests A1 A2 A3 PINPOINT TEST A: A SINGLE/MORE THAN ONE DOOR LOCK IS INOPERATIVE CHECK THE DOOR LOCK ACTUATOR OPERATION Verify the power door unlock inhibit feature is disabled. Enter the following diagnostic mode on the scan tool: Activate GO to A2. the door lock and unlock active commands. Do all doors lock and unlock correctly? GO to A13. ISOLATE THE DRIVER OR PASSENGER CONTROL SWITCH FAULT Operate the door locks using the driver door lock control switch. Do all doors lock with the driver door lock control switch? GO to A3. GO to A8. CHECK CIRCUIT 57 (BK) Disconnect: Passenger Door Lock Control Switch C605 (Expedition)/C632 (Navigator). For Expedition, measure the resistance between the passenger door lock control switch C605 pin 4, circuit 57 (BK), harness side and ground. For Navigator, measure the resistance between the passenger door lock control switch C632 pin 4, circuit 57 (BK), harness side and ground. GO to A4. REPAIR the circuit. CLEAR the DTCs. Is the resistance less than 5 ohms? REPEAT the self-test.

7 Handles, Locks, Latches and Entry Systems A4 PINPOINT TEST A: A SINGLE/MORE THAN ONE DOOR LOCK IS INOPERATIVE CHECK CIRCUITS 120 (PK/LG) AND 119 (PK/YE) TO THE VEHICLE SECURITY MODULE For Expedition, connect a fused (5A) jumper wire between the passenger door lock control switch C605 pin 6, circuit 120 (PK/LG), harness and ground; and between the passenger door lock control switch C605 pin 2, circuit 119 (PK/YE), harness side and ground. For Navigator, connect a fused (5A) jumper wire between the passenger door lock control switch C632 pin 7, circuit 120 (PK/LG), harness side and ground; and between the passenger door lock control switch C632 pin 3, circuit 119 (PK/YE), harness side and ground. A5 INSTALL a new passenger door lock control switch. CLEAR the DTCs. REPEAT the self-test. Do the door locks unlock and lock? GO to A5. CHECK CIRCUITS 120 (PK/LG) AND 119 (PK/YE) FOR A SHORT TO VOLTAGE Key in OFF position. Disconnect: Vehicle Security Module C2113a.

8 Handles, Locks, Latches and Entry Systems A5 PINPOINT TEST A: A SINGLE/MORE THAN ONE DOOR LOCK IS INOPERATIVE CHECK CIRCUITS 120 (PK/LG) AND 119 (PK/YE) FOR A SHORT TO VOLTAGE For Expedition, measure the voltage between the passenger door lock control switch C605 pin 6, circuit 120 (PK/LG), harness side and ground; and between the passenger door lock control switch C605 pin 2, circuit 119 (PK/YE), harness side and ground. For Navigator, measure the voltage between the passenger door lock control switch C632 pin 7, circuit 120 (PK/LG), harness side and ground; and between the passenger door lock control switch C632 pin 3, circuit 119 (PK/YE), harness side and ground. REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test. Is the voltage greater than 10 volts? GO to A6.

9 Handles, Locks, Latches and Entry Systems A6 PINPOINT TEST A: A SINGLE/MORE THAN ONE DOOR LOCK IS INOPERATIVE CHECK CIRCUITS 120 (PK/LG) AND 119 (PK/YE) FOR A SHORT TO GROUND For Expedition, measure the resistance between the passenger door lock control switch C605 pin 6, circuit 120 (PK/LG), harness side and ground; and between the passenger door lock control switch C605 pin 2, circuit 119 (PK/YE), harness side and ground. For Navigator, measure the resistance between the passenger door lock control switch C632 pin 7, circuit 120 (PK/LG), harness side and ground; and between the passenger door lock control switch C632 pin 3, circuit 119 (PK/YE), harness side and ground. GO to A7. REPAIR the circuit in question. CLEAR the Are the resistances greater than 10,000 ohms? DTCs. REPEAT the self-test.

10 Handles, Locks, Latches and Entry Systems A7 PINPOINT TEST A: A SINGLE/MORE THAN ONE DOOR LOCK IS INOPERATIVE CHECK CIRCUIT 120 (PK/LG) AND 119 (PK/YE) FOR AN OPEN CIRCUIT For Expedition, measure the resistance between the passenger door lock control switch C605 pin 6, circuit 120 (PK/LG), harness side and the vehicle security module C2113a pin 2, circuit 120 (PK/LG), harness side; and between the passenger door lock control switch C605 pin 2, circuit 119 (PK/YE), harness side and the vehicle security module C2113a pin 3, circuit 119 (PK/YE), harness side. For Navigator, measure the resistance between the passenger door lock control switch C632 pin 7, circuit 120 (PK/LG), harness side and the vehicle security module C2113a pin 2, circuit 120 (PK/LG), harness side; and between the passenger door lock control switch C632 pin 3, circuit 119 (PK/YE), harness side and the vehicle security module C2113a pin 3, circuit 119 (PK/YE), harness side. A8 GO to A16. REPAIR the circuit in question. CLEAR the Are the resistances less than 5 ohms? DTCs. REPEAT the self-test. CHECK CIRCUIT 57 (BK) FOR AN OPEN Disconnect: Driver Door Lock Control Switch C505 (Expedition)/C541 (Navigator).

11 Handles, Locks, Latches and Entry Systems A8 PINPOINT TEST A: A SINGLE/MORE THAN ONE DOOR LOCK IS INOPERATIVE CHECK CIRCUIT 57 (BK) FOR AN OPEN For Expedition, measure the resistance between the driver door lock control switch C505 pin 4, circuit 57 (BK), harness side and ground. For Navigator, measure the resistance between the driver door lock control switch C541 pin 4, circuit 57 (BK), harness side and ground. A9 GO to A9. REPAIR the circuit. CLEAR the DTCs. Is the resistance less than 5 ohms? REPEAT the self-test. CHECK CIRCUITS 120 (PK/LG) AND 119 (PK/YE) TO THE VEHICLE SECURITY MODULE For Expedition, connect a fused (5A) jumper wire between the driver door lock control switch C505 pin 6, circuit 120 (PK/LG), harness side and ground; and between the driver door lock control switch C505 pin 2, circuit 119 (PK/YE), harness side and ground.

12 Handles, Locks, Latches and Entry Systems A9 PINPOINT TEST A: A SINGLE/MORE THAN ONE DOOR LOCK IS INOPERATIVE CHECK CIRCUITS 120 (PK/LG) AND 119 (PK/YE) TO THE VEHICLE SECURITY MODULE For Navigator, connect a fused (5A) jumper wire between the driver door lock control switch C541 pin 7, circuit 120 (PK/LG), harness side and ground; and between the driver door lock control switch C541 pin 3, circuit 119 (PK/YE), harness side and ground. A10 INSTALL a new driver door lock control switch. CLEAR the DTCs. REPEAT the self-test. Do the door locks unlock and lock? GO to A10. CHECK CIRCUITS 120 (PK/LG) AND 119 (PK/YE) FOR A SHORT TO VOLTAGE Disconnect: Vehicle Security Module C2113a. For Expedition, measure the voltage between the driver door lock control switch C505 pin 6, circuit 120 (PK/LG), harness side and ground, and between the driver door lock control switch C505 pin 2, circuit 119 (PK/YE), harness side and ground.

13 Handles, Locks, Latches and Entry Systems A10 PINPOINT TEST A: A SINGLE/MORE THAN ONE DOOR LOCK IS INOPERATIVE CHECK CIRCUITS 120 (PK/LG) AND 119 (PK/YE) FOR A SHORT TO VOLTAGE For Navigator, measure the voltage between the driver door lock control switch C541 pin 7, circuit 120 (PK/LG), harness side and ground; and between the driver door lock control switch C541 pin 3, circuit 119 (PK/YE), harness side and ground. A11 REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test. Is the voltage greater than 10 volts? GO to A11. CHECK CIRCUITS 120 (PK/LG) AND 119 (PK/YE) FOR A SHORT TO GROUND For Expedition, measure the resistance between the driver door lock control switch C505 pin 6, circuit 120 (PK/LG), harness side and ground; and between the driver door lock control switch C505 pin 2, circuit 119 (PK/YE), harness side and ground.

14 Handles, Locks, Latches and Entry Systems A11 PINPOINT TEST A: A SINGLE/MORE THAN ONE DOOR LOCK IS INOPERATIVE CHECK CIRCUITS 120 (PK/LG) AND 119 (PK/YE) FOR A SHORT TO GROUND For Navigator, measure the resistance between the driver door lock control switch C541 pin 7, circuit 120 (PK/LG), harness side and ground; and between the driver door lock control switch C541 pin 3, circuit 119 (PK/YE), harness side and ground. A12 GO to A12. REPAIR the circuit in question. CLEAR the Are the resistances greater than 10,000 ohms? DTCs. REPEAT the self-test. CHECK CIRCUITS 120 (PK/LG) AND 119 (PK/YE) FOR AN OPEN For Expedition, measure the resistance between the driver door lock control switch C505 pin 6, circuit 120 (PK/LG), harness side and the vehicle security module C2113a pin 2; and between the driver door lock control switch C505 pin 2, circuit 119 (PK/YE), harness side and the vehicle security module C2113a pin 2, circuit 119 (PK/YE), harness side.

15 Handles, Locks, Latches and Entry Systems A12 PINPOINT TEST A: A SINGLE/MORE THAN ONE DOOR LOCK IS INOPERATIVE CHECK CIRCUITS 120 (PK/LG) AND 119 (PK/YE) FOR AN OPEN For Navigator, measure the resistance between the driver door lock control switch C541 pin 7, circuit 120 (PK/LG), harness side and the vehicle security module C2113a pin 2, circuit 120 (PK/LG), harness side; and between the driver door lock control switch C541 pin 3, circuit 119 (PK/LG), harness side and vehicle security module C2113a pin 3, circuit 119 (PK/YE), harness side. A13 A14 GO to A16. REPAIR the circuit in question. CLEAR the Are the resistances less than 5 ohms? DTCs. REPEAT the self-test. CHECK THE MANUAL OPERATION OF THE SUSPECT DOOR LOCK Manually operate the suspect door lock while checking for a binding or stuck condition. REPAIR the binding components. CLEAR Is the lock stuck or binding? the DTCs. REPEAT the self-test. GO to A14. CHECK SUSPECT DOOR LOCK ACTUATOR Disconnect: Suspect Door Lock Actuator Connector. Connect a fused (5A) jumper wire between the suspect door lock actuator connector pin 1, component side and the battery positive terminal; and between the suspect door lock actuator connector pin 2, component side and ground.

16 Handles, Locks, Latches and Entry Systems A14 PINPOINT TEST A: A SINGLE/MORE THAN ONE DOOR LOCK IS INOPERATIVE CHECK SUSPECT DOOR LOCK ACTUATOR Connect a fused (5A) jumper wire between the suspect door lock actuator connector pin 2, component side and the battery positive terminal; and between the suspect door lock actuator connector pin 1, component side and ground. A15 GO to A15. INSTALL a new door lock actuator. REFER to Front Door Lock Actuator, Rear Door Lock Actuator, or Liftgate Latch Actuator in this section. CLEAR the Does the door lock actuator operate correctly? DTCs. REPEAT the self-test. CHECK THE DOOR LOCK ACTUATOR CIRCUITS Disconnect: Vehicle Security Module C2113a. If the driver door lock is inoperative, connect a fused (15A) jumper wire between the vehicle security module C2113a pin 1, circuit 117 (PK/BK), harness side and the vehicle security module 2113a pin 7, circuit 163 (RD/OG), harness side. If any door lock is inoperative other than the driver door, connect a fused (15A) jumper wire between the vehicle security module C2113a pin 1, circuit 117 (PK/BK), harness side and the vehicle security module 2113a pin 8, circuit 118 (PK/OG), harness side.

17 Handles, Locks, Latches and Entry Systems A15 PINPOINT TEST A: A SINGLE/MORE THAN ONE DOOR LOCK IS INOPERATIVE CHECK THE DOOR LOCK ACTUATOR CIRCUITS Measure the resistance between the suspect door lock actuator connector pin 1, harness side and the suspect door lock actuator connector pin 2, circuit 117 (PK/BK), harness side. A16 GO to A16. REPAIR the circuit in question. CLEAR the Is the resistance less than 5 ohms? DTCs. REPEAT the self-test. CHECK FOR CORRECT VEHICLE SECURITY MODULE OPERATION Disconnect all the vehicle security module connectors. Check for: INSTALL a new vehicle security module. corrosion REFER to Section CLEAR the pushed-out pins DTCs. REPEAT the self-test. Connect all the vehicle security module connectors and make sure they seat correctly. The system is operating correctly at this Operate the system and verify the concern is still present. time. The concern may have been caused Is the concern still present? by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test. B1 B2 PINPOINT TEST B: THE DOORS DO NOT LOCK/UNLOCK USING THE REMOTE KEYLESS ENTRY KEYPAD CHECK THE VEHICLE SECURITY MODULE KEYPAD SWITCH PIDS Enter the following diagnostic mode on the scan tool: Vehicle Security Module KEYPAD PIDS. Press each remote keyless entry (RKE) keypad button while viewing vehicle security module KEYPAD PIDS. GO to B5. Do the PID values agree with the RKE keypad button positions? GO to B2. CHECK CIRCUITS 78 (LB/YE), 79 (LG/RD), AND 121 (YE/BK) FOR A RESISTANCE TO GROUND Key in OFF position. Disconnect: Vehicle Security Module C2113c. Using the following table, measure the resistance between the vehicle security module C2113c, harness side and ground: Vehicle Security Module C2113c pin 2 pin 3 pin 9 Circuit 78 (LB/YE) 121 (YE/BK) 79 (LG/RD)

18 Handles, Locks, Latches and Entry Systems B2 PINPOINT TEST B: THE DOORS DO NOT LOCK/UNLOCK USING THE REMOTE KEYLESS ENTRY KEYPAD CHECK CIRCUITS 78 (LB/YE), 79 (LG/RD), AND 121 (YE/BK) FOR A RESISTANCE TO GROUND B3 GO to B3. Is any resistance less than 10,000 ohms? GO to B4. CHECK CIRCUITS 78 (LB/YE), 79 (LG/RD), AND 121 (YE/BK) FOR A SHORT TO GROUND Disconnect: RKE Keypad C500. Using the following table, measure the resistance between the vehicle security module C2113c, harness side and ground: Vehicle Security Module C2113c pin 2 pin 3 pin 9 Circuit 78 (LB/YE) 121 (YE/BK) 79 (LG/RD) B4 REPAIR the circuit(s). CLEAR the DTCs. REPEAT the self-test. INSTALL a new RKE keypad. REFER to Remote Keyless Entry Keypad in this section. CLEAR the DTCs. REPEAT the Is any resistance less than 10,000 ohms? self-test. CHECK CIRCUITS 121 (YE/BK), 78 (LB/YE), 79 (LG/RD), AND 124 (BR) FOR AN OPEN Disconnect: RKE Keypad C500. Using the following table, measure the resistance between the vehicle security module C2113c, harness side and the RKE keypad C500, harness side:

19 Handles, Locks, Latches and Entry Systems B4 PINPOINT TEST B: THE DOORS DO NOT LOCK/UNLOCK USING THE REMOTE KEYLESS ENTRY KEYPAD CHECK CIRCUITS 121 (YE/BK), 78 (LB/YE), 79 (LG/RD), AND 124 (BR) FOR AN OPEN Vehicle Security Module C2113c Circuit RKE C500 pin 2 78 (LB/YE) pin 1 pin (YE/BK) pin 7 pin (BR) pin 6 pin 9 79 (LG/RD) pin 3 B5 INSTALL a new RKE keypad. REFER to Remote Keyless Entry Keypad in this section. CLEAR the DTCs. REPEAT the self-test. REPAIR the circuit(s). CLEAR the DTCs. Are the resistances less than 5 ohms? REPEAT the self-test. CHECK FOR CORRECT VEHICLE SECURITY MODULE OPERATION Disconnect all the vehicle security module connectors. Check for: INSTALL a new vehicle security module. corrosion REFER to Section CLEAR the pushed-out pins DTCs. REPEAT the self-test. Connect all the vehicle security module connectors and make sure they seat correctly. The system is operating correctly at this Operate the system and verify the concern is still present. time. The concern may have been caused Is the concern still present? by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test. C1 PINPOINT TEST C: THE DOORS DO NOT LOCK/UNLOCK USING THE REMOTE KEYLESS ENTRY TRANSMITTER NOTE: All remote keyless entry (RKE) transmitters must be present to begin diagnosis of the RKE system. NOTE: Aftermarket or dealer-installed systems may adversely affect the RKE system operation. These systems should be disconnected before diagnosing any RKE concerns. CHECK FOR THE CORRECT RKE TRANSMITTERS Check that the correct RKE transmitters are used with the vehicle. GO to C2. Make sure the RKE transmitters are ones provided with the OEM system and not from an aftermarket system, or a The system cannot be tested without the dealer-installed system that may have been installed on the correct RKE transmitters. INFORM the vehicle. customer that all the correct RKE Are all the correct RKE transmitters present? transmitters need to be present to proceed with diagnosis of the system.

20 Handles, Locks, Latches and Entry Systems C2 C3 C4 C5 C6 PINPOINT TEST C: THE DOORS DO NOT LOCK/UNLOCK USING THE REMOTE KEYLESS ENTRY TRANSMITTER CHECK THE OPERATION OF THE RKE TRANSMITTER WITH THE KEY IN THE OFF POSITION Key in OFF position. Check the operation of the RKE transmitter. The system is operating as designed. Does the system operate correctly now? INFORM the customer of the correct vehicle operation. GO to C3. CHECK THE POWER DOOR LOCK SYSTEM FOR CORRECT OPERATION Verify the door lock/unlock operation by actuating the driver door lock control switch. GO to C4. Do all the doors lock and unlock correctly? To diagnose the inoperative door locks, GO to Pinpoint Test A. CHECK FOR THE COMPLETE FUNCTIONALITY OF THE RKE TRANSMITTER(S) Check all the RKE transmitter buttons for correct operation. Does the panic button operate correctly? REPLACE the inoperative RKE transmitter. PROGRAM all RKE transmitters. REFER to Remote Keyless Entry Transmitter Programming in this section. INFORM the customer that any RKE transmitters not present will need to be programmed. TEST the system for normal operation. GO to C5. MAKE SURE THE RKE TRANSMITTER SIGNAL IS BEING RECEIVED Connect the scan tool. Enter the following diagnostic mode on the scan tool: Enter the vehicle security module function tests, transmitter test or program transmitter. Monitor the RKE transmitter identification code (TIC) through the diagnostic tool menus. NOTE: The vehicle must be electronically unlocked prior to using any diagnostic tools (through the door lock control switch). Verify the RKE transmitter signal is being received. Using a diagnostic tool, press a button on the RKE transmitter while observing the diagnostic tool. GO to C6. Does the TIC show up on the diagnostic tool screen when a button is pressed? GO to C7. CHECK IF THE RKE TRANSMITTERS ARE PROGRAMMED Enter the following diagnostic mode on the scan tool: Enter the vehicle security module function tests, transmitter test or GO to C8. program transmitter. Monitor the RKE transmitter TIC/DATA through the diagnostic PROGRAM all of the RKE transmitters. tool menus. REFER toremote Keyless Entry Verify the RKE transmitters are programmed to the vehicle. Transmitter Programming in this section. Does the TIC displayed under RKE transmitter match any of INFORM the customer that any RKE the TICs stored in memory? transmitters not present need to be programmed. TEST the system for normal operation.

21 Handles, Locks, Latches and Entry Systems C7 C8 C9 C10 PINPOINT TEST C: THE DOORS DO NOT LOCK/UNLOCK USING THE REMOTE KEYLESS ENTRY TRANSMITTER CHECK THE RKE TRANSMITTER BATTERY Using a thin coin, open the RKE transmitter. Do not clean off any grease from the battery terminals on the GO to C9. back surface of the circuit board. Verify the correct battery is used (CR2032). INSTALL a new battery (be sure the Remove the RKE transmitter battery and measure the voltage. battery is seated correctly). DO NOT Is the voltage greater than 2.5 volts? reprogram the RKE transmitters (faulty or dead batteries do not erase TICs from memory). TEST the system for normal operation. CHECK IF THE RKE TRANSMITTER IS OUT OF SYNCHRONIZATION WITH THE VEHICLE SECURITY MODULE The vehicle must be electronically unlocked prior to using any diagnostic tools (through the door lock control switch). Enter the following diagnostic mode on the scan tool: Retrieve To diagnose the RKE transmitter out of continuous DTCs through diagnostic tool. synchronization, GO to Pinpoint Test E. Is continuous DTC B2425 stored in the vehicle security module? GO to C9. CHECK FOR NORMAL OPERATION WITH A KNOWN GOOD RKE TRANSMITTER Enter the following diagnostic mode on the scan tool: Enter the vehicle security module function tests, transmitter test or REPLACE the inoperative RKE program transmitter. transmitter. PROGRAM all RKE Monitor the RKE transmitter TIC/DATA through the diagnostic transmitter(s). REFER to Remote Keyless tool menus. Entry Transmitter Programming in this Use the customer s second RKE transmitter or a known good section. INFORM the customer that any RKE transmitter that is correct for the vehicle and verify the RKE RKE transmitters not present need to be transmitter signal is being received by the vehicle security programmed. TEST the system for normal module. operation. Does the TIC show up on the diagnostic tool when a button is pressed on the RKE transmitter? GO to C10. CHECK THE VEHICLE SECURITY MODULE FOR CORRECT OPERATION Disconnect all the vehicle security module connectors. Check for: INSTALL a new vehicle security module. corrosion REFER to Section REPEAT the pushed-out pins self-test. Connect all the vehicle security module connectors and make sure they seat correctly. The system is operating correctly at this Operate the system and verify the concern is still present. time. The concern may have been caused Is the concern still present? by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test. D1 D2 PINPOINT TEST D: THE AUTO-LOCK DOES NOT OPERATE CORRECTLY VERIFY THE AUTO-LOCK FEATURE IS ENABLED Verify the auto-lock feature is enabled. Is the auto-lock/relock feature enabled? GO to D2. Turn the feature ON with any configuration method. TEST the system for normal operation. CHECK THE DOOR LOCK CONTROL SWITCH Disconnect: Door Lock Control Switch. Carry out the door lock control switch component test. Refer to GO to D3. Wiring Diagrams Cell 149 for component testing. Is the door lock control switch OK? INSTALL a new door lock control switch. CLEAR the DTCs. REPEAT the self-test.

22 Handles, Locks, Latches and Entry Systems D3 D4 PINPOINT TEST D: THE AUTO-LOCK DOES NOT OPERATE CORRECTLY CHECK ALL THE VEHICLE SECURITY MODULE DOOR AJAR PIDS FOR CORRECT READINGS Key in ON position. Enter the following diagnostic mode on the scan tool: Monitor all GO to D15. vehicle security module door ajar PIDS while opening and closing all doors. If the liftgate ajar circuit PID does not Do the PID values agree with the door positions? agree with the liftgate status, GO to D7. For all others, GO to D4. CHECK THE SUSPECT DOOR AJAR SWITCH CIRCUIT Key in OFF position. Disconnect: Suspect Door Ajar Switch Connector. Connect a jumper wire between the pins of the suspect door ajar switch. Refer to the following chart: Door LF RF LR RR Connector C526 C602 C715 C820 D5 INSTALL a new door ajar switch. REFER to Door Ajar Switch in this section. CLEAR the DTCs. REPEAT the self-test. Do the courtesy lamps turn off? GO to D5. CHECK THE SUSPECT DOOR AJAR SWITCH CIRCUIT 57 (BK) FOR AN OPEN Measure the resistance between the suspect door ajar switch connector, harness side and ground. Refer to the following chart: Door Ajar Switch C526 (LF) C602 (RF) C715 (LR) C820 (RR) Circuit 57 (BK) 57 (BK) 57 (BK) 57 (BK)

23 Handles, Locks, Latches and Entry Systems D5 PINPOINT TEST D: THE AUTO-LOCK DOES NOT OPERATE CORRECTLY CHECK THE SUSPECT DOOR AJAR SWITCH CIRCUIT 57 (BK) FOR AN OPEN D6 GO to D6. REPAIR the circuit in question. CLEAR the Is the resistance less than 5 ohms? DTCs. REPEAT the self-test. CHECK THE CIRCUIT BETWEEN THE VEHICLE SECURITY MODULE AND THE SUSPECT DOOR AJAR SWITCH FOR AN OPEN Disconnect: Vehicle Security Module C2113a. Measure the resistance between the suspect door ajar switch connector, harness side and the vehicle security module C2113a, harness side. Refer to the following chart: Vehicle Security Door Ajar Switch Module Circuit D7 C526 (LF) C2113a (BK/YE) C602 (RF) C2113a (BK/PK) C715 (LR) C2113a (BK/WH) C820 (RR) C2113a (BK/WH)/363 GO to D15. (BK/LB) REPAIR the circuit in question. CLEAR the Is the resistance less than 5 ohms? DTCs. REPEAT the self-test. CHECK CIRCUIT 700 (WH/VT) FOR A SHORT TO VOLTAGE Key in OFF position. Disconnect: Vehicle Security Module C2113a. Key in ON position. Measure the voltage between the vehicle security module C2113a pin 12, circuit 700 (WH/VT), harness side and ground. GO to D8. Is any voltage present? GO to D10.

24 Handles, Locks, Latches and Entry Systems D8 PINPOINT TEST D: THE AUTO-LOCK DOES NOT OPERATE CORRECTLY ISOLATE THE SHORT TO VOLTAGE Key in OFF position. Disconnect: Power Liftgate Module C4174d (if equipped with power liftgate). Disconnect: Liftgate Ajar Switch C479 (if not equipped with power liftgate). Key in ON position. Measure the voltage between the vehicle security module C2113a pin 12, circuit 700 (WH/VT), harness side and ground. D9 REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. If the vehicle is equipped with a power liftgate, INSTALL a new power liftgate module. REFER to Section TEST the system for normal operation. If the vehicle is not equipped with a power Is any voltage present? liftgate, GO to D9. CHECK THE LIFTGATE GLASS RELEASE ACTUATOR FOR A SHORT TO VOLTAGE Key in OFF position. Connect: Liftgate Ajar Switch C479. Disconnect: Liftgate Glass Release Actuator C4040. Measure the voltage between the vehicle security module C2113a pin 12, circuit 700 (WH/VT), harness side and ground. D10 REPAIR circuit 1961 (BU/LB). CLEAR the DTCs. REPEAT the self-test. INSTALL a new liftgate glass release actuator. REFER to Liftgate Latch Window Glass. CLEAR the DTCs. Is any voltage present? REPEAT the self-test. CHECK CIRCUIT 700 (WH/VT) FOR AN OPEN Key in OFF position. Disconnect: Power Liftgate Module C4174d (if equipped with power liftgate). Disconnect: Liftgate Ajar Switch C479 (if not equipped with power liftgate).

25 Handles, Locks, Latches and Entry Systems D10 PINPOINT TEST D: THE AUTO-LOCK DOES NOT OPERATE CORRECTLY CHECK CIRCUIT 700 (WH/VT) FOR AN OPEN If the vehicle is equipped with a power liftgate, measure the resistance between the vehicle security module C2113a pin 12, circuit 700 (WH/VT), harness side and the power liftgate module C4174d pin 10, circuit 700 (WH/VT), harness side. If the vehicle is not equipped with a power liftgate, measure the resistance between the vehicle security module C2113a pin 12, circuit 700 (WH/VT), harness side and the liftgate ajar switch C479 pin B, circuit 700 (WH/VT), harness side. D11 GO to D11. REPAIR the circuit. CLEAR the DTCs. Is the resistance less than 5 ohms? REPEAT the self-test. CHECK CIRCUIT 1961 (BN/LB) FOR AN OPEN Disconnect: Liftgate Glass Release Actuator C4040. If the vehicle is equipped with a power liftgate, measure the resistance between the power liftgate module C4174d pin 7, circuit 1961 (BN/LB), harness side and the liftgate glass release actuator C4040 pin 1, circuit 1961 (BN/LB), harness side.

26 Handles, Locks, Latches and Entry Systems D11 PINPOINT TEST D: THE AUTO-LOCK DOES NOT OPERATE CORRECTLY CHECK CIRCUIT 1961 (BN/LB) FOR AN OPEN If the vehicle is not equipped with a power liftgate, measure the resistance between the liftgate ajar switch C479 pin C, circuit 1961 (BU/LB), harness side and the liftgate glass release actuator C4040 pin 1, circuit 1961 (BN/LB), harness side. D12 GO to D12. REPAIR the circuit. CLEAR the DTCs. Is the resistance less than 5 ohms? REPEAT the self-test. CHECK CIRCUIT 57 (BK) FOR AN OPEN Measure the resistance between the liftgate glass release actuator C4040 pin 3, circuit 57 (BK), harness side and ground. D13 GO to D13. REPAIR the circuit. CLEAR the DTCs. Is the resistance less than 5 ohms? REPEAT the self-test. CHECK THE LIFTGATE GLASS RELEASE ACTUATOR Measure the resistance between the liftgate glass release actuator C4040 pin 1, component side and the liftgate glass release actuator C4040 pin 3, component side while opening and closing the liftgate glass. GO to D14. INSTALL a new liftgate glass release actuator. REFER to Liftgate Latch Does the resistance switch between less than 5 ohms to Window Glass. CLEAR the DTCs. greater than 10,000 ohms? REPEAT the selft-test.

27 Handles, Locks, Latches and Entry Systems D14 PINPOINT TEST D: THE AUTO-LOCK DOES NOT OPERATE CORRECTLY CHECK THE VEHICLE SECURITY MODULE Connect: Liftgate Glass Release Actuator C4040. Connect: Power Liftgate Module C4174d (if equipped with power liftgate). Connect: Liftgate Ajar Switch C479 (if not equipped with power liftgate). Key in ON position. Measure the resistance between the vehicle security module C2113a pin 12, circuit 700 (WH/VT), harness side and ground while opening and closing the liftgate. D15 D16 D17 GO to D16. If the vehicle is equipped with a power liftgate, GO to D17. If the vehicle is not equipped with a power liftgate, INSTALL a new liftgate ajar Does the resistance switch from less than 5 ohms to switch. CLEAR the DTCs. REPEAT the greater than 10,000 ohms? self-test. CHECK THE PCM, INSTRUMENT CLUSTER AND ABS PIDS Enter the following diagnostic mode on the scan tool: Monitor the PCM vehicle speed PID. GO to D16. Enter the following diagnostic mode on the scan tool: Monitor the instrument cluster ignition switch status PID. To diagnose for an incorrect vehicle speed Enter the following diagnostic mode on the scan tool: Monitor PID, REFER to the Powertrain the anti-lock brake system (ABS) module brake ON/OFF PID. Control/Emissions Diagnosis (PC/ED) Are the correct values received? manual. To diagnose for an incorrect ignition switch status PID, REFER to Section To diagnose for an incorrect brake ON/OFF PID, REFER to Section CHECK FOR CORRECT VEHICLE SECURITY MODULE OPERATION Disconnect all the vehicle security module connectors. Check for: INSTALL a new vehicle security module. corrosion REFER to Section CLEAR the pushed-out pins DTCs. REPEAT the self-test. Connect all the vehicle security module connectors and make sure they seat correctly. The system is operating correctly at this Operate the system and verify the concern is still present. time. The concern may have been caused Is the concern still present? by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test. CHECK FOR CORRECT POWER LIFTGATE MODULE OPERATION Disconnect all the power liftgate module connectors. Check for: INSTALL a new power liftgate module. corrosion REFER to Section CLEAR the pushed-out pins DTCs. REPEAT the self-test. Connect all the power liftgate module connectors and make sure they seat correctly. The system is operating correctly at this Operate the system and verify the concern is still present. time. The concern may have been caused Is the concern still present? by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.

28 Handles, Locks, Latches and Entry Systems PINPOINT TEST E: THE REMOTE KEYLESS ENTRY TRANSMITTER IS OUT OF SYNCHRONIZATION E1 E2 E3 E4 F1 F2 F3 F4 NOTE: All remote keyless entry (RKE) transmitters must be present to begin diagnosis of the RKE system. RESYNCHRONIZE THE INOPERATIVE RKE TRANSMITTER Key in OFF position. Press any button on the inoperative RKE transmitter 4 times The system is OK. CLEAR the DTCs. consecutively within 30 seconds. REPEAT the self-test. Does the RKE transmitter operate correctly now? GO to E2. CHECK FOR A SECOND RKE TRANSMITTER Check for another RKE transmitter that operates with the vehicle. GO to E3. Is there another RKE transmitter that operates with the vehicle? GO to E4. RESYNCHRONIZE THE INOPERATIVE RKE TRANSMITTER USING THE SECOND RKE TRANSMITTER Key in OFF position. Press any button on the operational RKE transmitter. Within 30 seconds, press a button on the inoperative RKE The system is OK. CLEAR the DTCs. transmitter. REPEAT the self-test. Check the inoperative RKE transmitter for correct operation. Does the inoperative RKE transmitter operate now? GO to E4. PROGRAM THE INOPERATIVE RKE TRANSMITTER OR ALL THE RKE TRANSMITTERS Program the inoperative RKE transmitter individually using a diagnostic tool or program all RKE transmitters using the manual The system is OK. INFORM the customer key cycle method. Refer toremote Keyless Entry Transmitter that any RKE transmitters not present Programming in this section. need to be programmed. CLEAR the Does the inoperative RKE transmitter operate now? DTCs. REPEAT the self-test. To diagnose the inoperative remote transmitter, GO to Pinpoint Test C. PINPOINT TEST F: THE PANIC FEATURE IS INOPERATIVE/DOES NOT OPERATE CORRECTLY VERIFY THE OPERATION OF THE HORN Key in ON position. Operate the horn through the steering wheel switch. GO to F2. Does the horn operate correctly? REFER to Section VERIFY THE PARKING LAMP OPERATION Key in ON position. Turn on the parking lamps with the headlamp switch. GO to F3. Do the parking lamps operate correctly? REFER to Section CHECK THE HORN OPERATION FROM THE VEHICLE SECURITY MODULE Key in ON position. Enter the following diagnostic mode on the scan tool: Activate GO to F4. the horn active command for 1 second. Does the horn operate? GO to F9. CHECK THE PARKING LAMP OPERATION FROM THE VEHICLE SECURITY MODULE Key in ON position. Enter the following diagnostic mode on the scan tool: Activate GO to F5. the parking lamps active command for 5 seconds. Do the parking lamps operate? GO to F7.

29 Handles, Locks, Latches and Entry Systems F5 F6 F7 PINPOINT TEST F: THE PANIC FEATURE IS INOPERATIVE/DOES NOT OPERATE CORRECTLY CHECK THE REMOTE KEYLESS ENTRY (RKE) TRANSMITTER OPERATION Key in ON position. Unlock and lock the doors using the RKE transmitter. GO to F6. Do the doors lock and unlock correctly? GO to Pinpoint Test C. CHECK THE RKE TRANSMITTER SIGNAL TO THE VEHICLE SECURITY MODULE Enter the following diagnostic mode on the scan tool: Read the vehicle security module remote transmitter panic button PID GO to F10. while pressing the PANIC button. Does the PID value agree with the button press? REPLACE the inoperative RKE transmitter. PROGRAM all RKE transmitter(s). REFER to Remote Keyless Entry Transmitter Programming in this section. INFORM the customer that any RKE transmitters not present need to be programmed. TEST the system for normal operation. CHECK CIRCUIT 195 (TN/WH) FOR AN OPEN Disconnect: Vehicle Security Module C2113b. Measure the voltage between the vehicle security module C2113b pin 8, circuit 195 (TN/WH), harness side and ground. F8 GO to F8. REPAIR the circuit. TEST the system for Is the voltage greater than 10 volts? normal operation. CHECK CIRCUIT 14 (BN) FOR AN OPEN Disconnect: Vehicle Security Module C2113b. Disconnect: Headlamp Switch C205a. Measure the resistance between the vehicle security module C2113b pin 2, circuit 14 (BN), harness side and the headlamp switch C205a pin 12, circuit 14 (BN), harness side. GO to F10. REPAIR the circuit. TEST the system for Is the resistance less than 5 ohms? normal operation.

30 Handles, Locks, Latches and Entry Systems F9 PINPOINT TEST F: THE PANIC FEATURE IS INOPERATIVE/DOES NOT OPERATE CORRECTLY CHECK CIRCUIT 1 (DB) FOR AN OPEN Disconnect: Vehicle Security Module C2113b. Connect a fused (15A) jumper wire between the vehicle security module C2113b pin 6, circuit 1 (DB), harness side and ground. F10 G1 G2 G3 GO to F10. REPAIR the circuit. TEST the system for Does the horn operate? normal operation. CHECK FOR CORRECT VEHICLE SECURITY MODULE OPERATION Disconnect all the vehicle security module connectors. Check for: INSTALL a new vehicle security module. corrosion REFER to Section CLEAR the pushed-out pins DTCs. REPEAT the self-test. Connect all the vehicle security module connectors and make sure they seat correctly. The system is operating correctly at this Operate the system and verify the concern is still present. time. The concern may have been caused Is the concern still present? by a loose or corroded connector. TEST the system for normal operation. PINPOINT TEST G: THE REMOTE KEYLESS ENTRY KEYPAD ILLUMINATION IS INOPERATIVE CHECK THE REMOTE KEYLESS ENTRY (RKE) KEYPAD SWITCH PIDS Enter the following diagnostic mode on the scan tool: Vehicle Security Module KEYPAD PIDS. Press each RKE keypad button while viewing vehicle security module KEYPAD PIDS. GO to G2. Do the PID values agree with the RKE keypad button positions? GO to Pinpoint Test B. CHECK THE VEHICLE SECURITY MODULE OUTPUT FUNCTION Enter the following diagnostic mode on the scan tool: Activate the RKE keypad backlighting ON and OFF active commands. Trigger LIGHT ON then OFF. GO to G5. Does the RKE keypad backlighting turn on and off when commanded? GO to G3. CHECK CIRCUIT 57 (BK) FOR AN OPEN Key in OFF position. Disconnect: RKE Keypad C500.

31 Handles, Locks, Latches and Entry Systems G3 PINPOINT TEST G: THE REMOTE KEYLESS ENTRY KEYPAD ILLUMINATION IS INOPERATIVE CHECK CIRCUIT 57 (BK) FOR AN OPEN Measure the resistance between the RKE keypad C500 pin 4, circuit 57 (BK), harness side and ground. G4 GO to G4. REPAIR the circuit. TEST the system for Is the resistance less than 5 ohms? normal operation. CHECK CIRCUIT 66 (LB) FOR AN OPEN Key in OFF position. Disconnect: Vehicle Security Module C2113c. Measure the resistance between the RKE keypad C500 pin 2, circuit 66 (LB), harness side and the vehicle security module C2113c pin 6, circuit 66 (LB), harness side. G5 INSTALL a new RKE keypad. REFER to Remote Keyless Entry Keypad in this section. TEST the system for normal operation. REPAIR the circuit. TEST the system for Is the resistance less than 5 ohms? normal operation. CHECK FOR CORRECT VEHICLE SECURITY MODULE OPERATION Disconnect all the vehicle security module connectors. Check for: INSTALL a new vehicle security module. for corrosion REFER to Section REPEAT the for pushed-out pins self-test. Connect all the vehicle security module connectors and make sure they seat correctly. The system is operating correctly at this Operate the system and verify the concern is still present. time. The concern may have been caused Is the concern still present? by a loose or corroded connector. TEST the system for normal operation.

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