1999 Expedition/Navigator Workshop Manual

Transcription

1 Page 1 of 16 SECTION : Anti-Theft PATS 1999 Expedition/Navigator Workshop Manual DIAGNOSIS AND TESTING Procedure revision date: 07/01/1998 Anti-Theft Passive Anti-Theft System (PATS) Refer to Wiring Diagrams Cell 59, Generic Electronic Module (GEM) for schematic and connector information. Refer to Wiring Diagrams Cell 62, Instrument Cluster for schematic and connector information. Refer to Wiring Diagrams Cell 112, Anti-Theft for schematic and connector information. Special Tool(s) 73 Digital Multimeter or equivalent 105-R0051 New Generation STAR (NGS) Tester or equivalent 418-F048 ( ) Inspection and Verification NOTE: Passive anti-theft system (PATS) must be reconfigured upon replacement of the instrument cluster (the instrument cluster is also known as a hybrid electronic cluster). Refer to Section Verify the customer concern by duplicating the condition. 2. Visually inspect for obvious signs of mechanical and electrical damage. Visual Inspection Chart Mechanical Ignition lock cylinder Encoded ignition key (PATS key) Use of non-encoded ignition key (key without the molded plastic head, non-pats key) Use of a non-programmed encoded ignition key Electrical Central junction box (CJB) Fuses: Fuse 2 (5A) Fuse 6 (5A) Fuse 30 (30A) PATS transceiver Connectors Ignition switch 3. If the concern remains after the inspection, connect the New Generation STAR (NGS) Tester to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the NGS tester menu. If the NGS Tester does not communicate with the vehicle: check that the program card is correctly installed. check the connections to the vehicle. check the ignition switch position. 4. If NGS Tester still does not communicate with the vehicle, refer to the New Generation STAR Tester manual. 5. Perform the DATA LINK DIAGNOSTIC TEST. If NGS Tester responds with: CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to Section NO RESP/NOT EQUIP for HEC, go to Pinpoint Test A. NO RESP/NOT EQUIP for GEM, go to Pinpoint Test B. SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the instrument cluster and GEM. 6. If the DTCs retrieved are related to the concern, go to Instrument Cluster Diagnostic Trouble Code (DTC) Index or GEM Diagnostic Trouble Code (DTC) Index to continue diagnostics. 7. If no DTCs related to the concern are retrieved, proceed to Symptom Chart to continue diagnostics. Instrument Cluster Diagnostic Trouble Code (DTC) Index Instrument Cluster Diagnostic Trouble Code (DTC) Index DTC Description Source Action B1201 Fuel Sender Circuit Failure HEC REFER to Section B1202 Fuel Sender Circuit Open HEC REFER to Section B1204 Fuel Sender Circuit Short to Ground HEC REFER to Section B1213 Anti-Theft Number of Programmed Keys Is Below Minumum HEC GO to Pinpoint Test C. B1232 Antenna t Connected Defective Transceiver HEC GO to Pinpoint Test D. B1284 Servo Motor Potentiometer Air Intake Left Circuit Failure HEC REFER to Section B1317 Battery Voltage High HEC REFER to Section B1318 Battery Voltage Low HEC REFER to Section B1342 ECU Is Defective HEC INSTALL a new instrument cluster. REFER to Section REPEAT the self-test. CLEAR the DTCs.

2 Page 2 of 16 B1356 Ignition Run Circuit Open Instrument Cluster B1364 Ignition Start Circuit Open Instrument Cluster B1600 B1601 B1602 B1681 B2103 or B1232 PATS Ignition Key Transponder Signal is t Received Damaged Key or n-pats Key PATS Received Incorrect Key-Code From Ignition Key Transponder (Unprogrammed Encoded Ignition Key) PATS Received Invalid Format of Key-Code From Ignition Key Transponder (Partial Key Read) PATS Transceiver Module Signal is t Received (Damaged, t Connected, or Damaged Wiring ) REFER to Section REFER to Section HEC GO to Pinpoint Test E. HEC GO to Pinpoint Test F. HEC GO to Pinpoint Test G. HEC GO to Pinpoint Test H. Antenna t Connected Defective Transceiver HEC GO to Pinpoint Test D. B2139 PCM ID Does t Match Between HEC and PCM HEC GO to Pinpoint Test I. B2141 NVM Configuration Failure ( PCM ID Exchange Between Instrument Cluster and PCM) HEC GO to Pinpoint Test J. B2143 Odometer NVM Memory Failure HEC INSTALL a new instrument cluster. REFER to Section REPEAT the self-test. CLEAR the DTCs. C1284 Oil Pressure Switch Failure HEC REFER to Section U1147 SCP Invalid or Missing Data for Vehicle Security PCM/SCP GO to Pinpoint Test K. Instrument Cluster Parameter Identification (PID) Index Instrument Cluster Parameter Identification (PID) Index PID Description Expected Value ANTISCN Anti-Scan Function DISABL, ENABLE BACK_LT PWM Output % CCNT Number Of Continuous DTCs In Module one count per bit ENABL_S Vehicle Enable Status DISABL, ENABLE FLDLVLI Brake Fluid Level Input one count per bit FUELLVL Fuel Level Status % IGN_O/L Ignition Switch -OFF/Lock Position NO, YES IGN_R Ignition Switch -RUN Position NO, YES IGN_S Ignition Switch -START Position NO, YES M_KEY Master Key Present notpre, PRESNT NUMKEYS Number Of Keys Stored In Module one count per bit OIL_PSW Oil Pressure Switch Control one count per bit PCM_ID PCM ID Stored in the HEC notstr, STORED PCM_VFY PCM ID Matches Between PCM and HEC NO, YES RESETSW Reset Switch OFF, ON VBAT Battery Voltage VDC Instrument Cluster Active Command Index Instrument Cluster Active Command Index Active Command Display Action 4WD TRANSFER CASE CONTROL LOW LAMP OFF, ON ANTI-THEFT INDICATOR LAMP THEFT LAMP OFF, ON BATTERY VOLTAGE INDICATOR CONTROL BATTERY I % DISPLAY DIMMING CONTROL ILLUMINAT OFF, ON DISPLAY SEGMENT CONTROL SEGMENTS OFF, ON ENGINE COOLANT GAUGE CONTROL ENGCOOLNT % FUEL GAUGE CONTROL FUELLEVEL % INDICATOR LAMP CONTROL MIL OFF, ON INDICATOR LAMP CONTROL II (Check Gauge Indicator) OFF, ON INDICATOR LAMP CONTROL II FUEL LOW OFF, ON OIL PRESSURE GUAGE INDICATOR CTRL OIL GUAGE % RF SIGNAL RF OFF, ON SPEEDOMETER CONTROL SPDOMETER % TACHOMETER CONTROL TCHOMETER % WARNING LAMPS AND CHIME ALL LAMPS OFF, ON Symptom Chart Symptom Chart Condition Possible Sources Action communication with the module instrument cluster CJB Fuses: Fuse 2 (5A). Fuse 6 (5A). GO to Pinpoint Test A.

3 Page 3 of 16 The anti-theft indicator is never on no three second theft indicator prove out The vehicle does not start theft indicator proves out for three seconds as normal The anti-theft system does not operate correctly the vehicle starts but flashes a fault code on theft indicator at key ON Fuse 30 (30A). Circuitry. Instrument Cluster. Instrument cluster. Theft indicator. Less than two keys programmed to the system. Transceiver not connected/defective. Circuitry. Transceiver internal antenna damaged. n-pats key, damaged key or no code received. Partial key read of PATS key. Unprogrammed PATS key. powertrain control module (PCM) ID stored in PATS. PATS/PCM ID do not match. Problem with Standard Corporate Protocol (SCP) communication network. GO to Pinpoint Test B. Incorrect PCM calibration GO to Pinpoint Test K. CARRY OUT the instrument cluster On-Demand Self-Test. RETRIEVE DTCs. If DTCs are present, GO to Instrument Cluster Diagnostic Trouble Code (DTC) Index. If no DTCs are retrieved, CHECK for other possible no-start causes. CLEAR the stored DTCs. CYCLE the ignition key from OFF to RUN. RETRIEVE continuous DTCs. If DTCs are present, GO to Instrument Cluster Diagnostics Trouble Code (DTC) Index. If no DTCs are retrieved, CHECK for other possible causes. Pinpoint Tests PINPOINT TEST A: NO COMMUNICATION WITH THE MODULE INSTRUMENT CLUSTER A1 CHECK THE POWER SUPPLY TO THE INSTRUMENT CLUSTER Instrument Cluster C238 Using the following table, measure the voltage between instrument cluster C238 Pins, harness side and ground. Pin Circuit 2 16 (RD/LG) (LG/RD) (GY/YE) Are the voltages greater than 10 volts? GO to A2. A2 CIRCUIT 57 (BK) FOR OPEN REPAIR Circuit 16 (RD/LG), Circuit 904 (LG/RD), or Circuit 1003 (GY/YE) as necessary. REPEAT the self-test. CLEAR the DTCs. Measure resistance between instrument cluster C238 Pin 1, Circuit 57 (BK), harness side and ground.

4 Page 4 of 16 Is the voltage greater than 10 volts? REFER to Section REPAIR Circuit 57 (BK). REPEAT the self-test. CLEAR the DTCs. PINPOINT TEST B: THE ANTI-THEFT INDICATOR IS NEVER ON NO THREE SECOND THEFT INDICATOR PROVEOUT B1 CHECK THE ANTI-THEFT LED Measure the resistance between the pins of the anti-theft LED in both directions. Is the resistance greater than 10,000 ohms in one direction and between 10 and 20 ohms in the opposite direction? INSTALL a new instrument cluster. For additional information, REFER to Section REPEAT the self-test. CLEAR the DTCs. INSTALL a new anti-theft LED. For additional information, REFER to Section REPEAT the self-test. CLEAR the DTCs. PINPOINT TEST C: THE ANTI-THEFT SYSTEM DOES NOT OPERATE CORRECTLY ANTI-THEFT NUMBER OF PROGRAMMED KEYS IS BELOW MINIMUM C1 USE THE RECORDED DTCS FROM INSTRUMENT CLUSTER SELF-TESTS Use the recorded results from instrument cluster Continuous and On-Demand Self-Tests. Is DTC B1213 the only DTC retrieved? GO to C2. REPAIR the other DTCs retrieved. REFER to Instrument Cluster Diagnostic Trouble Codes (DTCS) Index. REPEAT the self-test. CLEAR the DTCs. C2 CHECK FOR PROGRAMMED ENCODED IGNITION KEYS MONITOR THE INSTRUMENT CLUSTER PID NUMKEYS Monitor the instrument cluster PID NUMKEYS. Does the instrument cluster PID NUMKEYS display less than two encoded ignition keys programmed? GO to C3. C3 PROGRAM ENCODED IGNITION KEYS NOTE: Two programmed encoded ignition keys must be available to start the vehicle. Cut a new encoded ignition key.

5 Page 5 of 16 Program the new encoded ignition key. Does the theft indicator illuminate for three seconds and then go out? CLEAR the DTCs. CARRY OUT the instrument cluster Continuous and On-Demand Self-Tests to verify all codes have been cleared. TEST the system for normal operation. If the theft indicator is on continuously, REPEAT Step C3 with a second new encoded ignition key. If the theft indicator is flashing, RETRIEVE DTC(s) stored for the new fault(s) and REPAIR the other DTC(s) retrieved. PINPOINT TEST D: THE ANTI-THEFT SYSTEM DOES NOT OPERATE CORRECTLY ANTENNA NOT CONNECTED OR DEFECTIVE TRANSCEIVER D1 INSPECT ANTENNA FOR CORRECT INSTALLATION Verify the PATS transceiver is correctly installed; for additional information, refer to Module Passive Anti-Theft Transceiver. Use the recorded results from the instrument cluster Continuous and On-Demand Self-Tests. Is DTC B1232 or B2103 retrieved? INSTALL a new PATS transceiver module; for additional information, REFER to Module Passive Anti-Theft Transceiver. CLEAR the DTCs. REPEAT the instrument cluster Continuous and On-Demand Self-Tests. TEST the system for normal operation. PINPOINT TEST E: THE ANTI-THEFT SYSTEM DOES NOT OPERATE CORRECTLY PATS IGNITION KEY TRANSPONDER SIGNAL IS NOT RECEIVED DAMAGED KEY OR NON-PATS KEY NOTE: Large metallic objects or devices such as the Mobil Speedpass or a second key on the same keyring as the PATS ignition key may cause vehicle starting problems and record DTCs under certain conditions. If a fault cannot be identified, examine the customer's key for such objects or devices. If present, inform the customer that they need to keep these objects from touching the PATS ignition key while starting the engine. These objects and devices cannot damage the PATS ignition key, but can cause a momentary problem if they are too close to the key during engine start. If a problem occurs, turn ignition OFF and restart the engine with all other objects on the keyring held away from the ignition key. Check to ensure the encoded ignition key used by the customer is an approved Ford encoded ignition key (encoded ignition keys from Rotunda, Ilco, Curtis, or Strattec are approved Ford encoded ignition keys). E1 USE THE RECORDED DTCS FROM INSTRUMENT CLUSTER SELF-TESTS Use the recorded results from the instrument cluster Continuous and On-Demand Self-Tests. Is DTC B1600 retrieved? GO to E2. E2 REPLACE THE ENCODED IGNITION KEY If other DTCs are retrieved, REFER to Instrument Cluster Diagnostic Trouble Code (DTC) Index. If no DTCs are retrieved, the system is OK. NOTE: Check to make sure the customer and new encoded ignition keys are approved Ford encoded PATS ignition keys. Unapproved PATS keys do not always operate correctly over different temperature ranges (encoded ignition keys from Rotunda, Ilco, Curtis, or Strattec are approved encoded ignition keys). Cut a new encoded ignition key. Program the new encoded ignition key; for additional information, refer to Key Programming Erase All Key Codes and Program Two Keys. Instrument Cluster On- Demand Self-Test

6 Page 6 of 16 Is DTC B1600 still present? GO to E3. E3 INSTALL A NEW PATS TRANSCEIVER If no other DTCs are retrieved, the system is OK. If other DTCs are retrieved, REFER to Instrument Cluster Diagnostic Trouble Code (DTC) Index. INSTALL a new PATS transceiver; for additional information refer to Module Passive Anti-Theft Transceiver. NOTE: Use the customer's original encoded ignition key, not the encoded ignition key that was cut in the previous step. Instrument Cluster On- Demand Self-Test Is DTC B1600 retrieved? INSTALL a new instrument cluster; For additional information, REFER to Section CYCLE the ignition to RUN using two encoded ignition keys. REPEAT the self-test. GO to Pinpoint Test I. CLEAR the DTCs. PINPOINT TEST F: THE ANTI-THEFT SYSTEM DOES NOT OPERATE CORRECTLY PATS RECEIVED INCORRECT KEY-CODE FROM IGNITION KEY TRANSPONDER (UNPROGRAMMED ENCODED IGNITION KEY) NOTE: Large metallic objects or devices such as the Mobil Speedpass or a second key on the same keyring as the PATS ignition key may cause vehicle starting problems and record DTCs under certain conditions. If a fault cannot be identified, examine the customer's key for such objects or devices. If present, inform the customer that they need to keep these objects from touching the PATS ignition key while starting the engine. These objects and devices cannot damage the PATS ignition key, but can cause a momentary problem if they are too close to the key during engine start. If a problem occurs, turn ignition OFF and restart the engine with all other objects on the keyring held away from the ignition key. Check to ensure the encoded ignition key used by the customer is an approved Ford encoded ignition key (encoded ignition keys from Rotunda, Ilco, Curtis, or Strattec are approved Ford encoded ignition keys). F1 USE THE RECORDED DTCS FROM INSTRUMENT CLUSTER SELF-TESTS Use the recorded results from the instrument cluster Continuous and On-Demand Self-Tests. Is DTC B1601 retrieved? GO to F2. CHECK all customer encoded ignition keys with instrument cluster Continuous and On-Demand Self-Tests to verify all other encoded ignition keys are programmed. F2 CHECK FOR PROGRAMMED ENCODED IGNITION KEYS MONITOR THE INSTRUMENT CLUSTER PID NUMKEYS Monitor the instrument cluster PID NUMKEYS. Does the instrument cluster PID NUMKEYS display 8? ERASE and REPROGRAM the key codes; For additional information, REFER to Key Programming Erase All Key Codes and Program Two Keys. REPEAT the self-test. CLEAR the DTCs. GO to F3. F3 CHECK THE NUMBER OF PROGRAMMED ENCODED IGNITION KEYS AVAILABLE Verify there are at least two currently programmed encoded ignition keys available with the vehicle. Are at least two currently programmed encoded ignition keys available with the vehicle? GO to F4. CUT new encoded ignition key(s) so that at least two encoded ignition keys are available. PROGRAM the encoded ignition key(s); for additional information, REFER to Key Programming Erase All Key Codes and Program Two Keys. GO to F4. F4 CHECK THE ENCODED IGNITION KEYS FOR PROPER OPERATION

7 Page 7 of 16 Start the vehicle using the first encoded ignition key. Start the vehicle with the second ignition key. Does the vehicle start correctly using both encoded ignition keys? If there are additional keys that need to be programmed, REFER to Key Programming Program a Key Using Two Programmed Keys. GO to F5. F5 RETRIEVE DTCS FROM THE INSTRUMENT CLUSTER SELF-TESTS CHECK FOR DTC B1601 Retrieve DTCs from the instrument cluster Continuous Self-Test. Clear Continuous DTCs Carry out the instrument cluster On-Demand Self-Test using the both keys from Pinpoint Test Step F4. Is DTC B1601 retrieved? INSTALL a new instrument cluster; for additional information, REFER to Section CYCLE the ignition to RUN using two encoded ignition keys. GO to Pinpoint Test I. CLEAR the DTCs. TEST the system for normal operation. If other DTCs are retrieved, REFER to Instrument Cluster Diagnostic Trouble Code (DTC) Index. PINPOINT TEST G: THE ANTI-THEFT SYSTEM DOES NOT OPERATE CORRECTLY PATS RECEIVED INVALID FORMAT OF KEY-CODE FROM IGNITION KEY TRANSPONDER (PARTIAL KEY READ) NOTE: Large metallic objects or devices such as the Mobil Speedpass or a second key on the same keyring as the PATS ignition key may cause vehicle starting problems and record DTCs under certain conditions. If a fault cannot be identified, examine the customer's key for such objects or devices. If present, inform the customer that they need to keep these objects from touching the PATS ignition key while starting the engine. These objects and devices cannot damage the PATS ignition key, but can cause a momentary problem if they are too close to the key during engine start. If a problem occurs, turn ignition OFF and restart the engine with all other objects on the keyring held away from the ignition key. Check to ensure the encoded ignition key used by the customer is an approved Ford encoded ignition key (encoded ignition keys from Rotunda, Ilco, Curtis, or Strattec are approved Ford encoded ignition keys). G1 USE THE RECORDED DTCS FROM THE INSTRUMENT CLUSTER SELF-TESTS Use the recorded results from the instrument cluster Continuous and On-Demand Self-Tests. Is DTC B1602 retrieved? GO to G2. CHECK all customer encoded ignition keys with Instrument Cluster On-Demand Self-Test to verify all other keys are programmed. G2 PROGRAM A NEW ENCODED IGNITION KEY

8 Page 8 of 16 NOTE: Check to make sure the customer and any new encoded ignition keys are approved Ford encoded PATS ignition keys. Unapproved PATS keys do not always operate correctly over different temperature ranges (encoded ignition keys from Rotunda, Ilco, Curtis, or Strattec are approved Ford encoded ignition keys). Cut a new encoded ignition key. Program a new encoded ignition key; for additional information, REFER to Key Programming Erase All Key Codes and Program Two Keys. Instrument Cluster On- Demand Self-Test Is DTC B1602 retrieved? GO to G3. G3 INSTALL A NEW PATS TRANSCEIVER If the customer has any remaining encoded keys at home, instruct them to carry out the key programming on each remaining key. This procedure is detailed in the Owners Literature. REFER also to Key Programming Program a Key Using Two Programmed Keys. INSTALL a new PATS transceiver; for additional information, refer to Module Passive Anti-Theft Transceiver. Instrument Cluster On- Demand Self-Test Are any DTCs retrieved? REFER to Instrument Cluster Diagnostic Trouble Code (DTC) Index. PINPOINT TEST H: THE ANTI-THEFT SYSTEM DOES NOT OPERATE CORRECTLY PATS TRANSCEIVER SIGNAL IS NOT RECEIVED (NOT CONNECTED, DAMAGED, OR WIRING) H1 USE THE RECORDED DTCS FROM INSTRUMENT CLUSTER SELF-TESTS Use the recorded DTCs from instrument cluster Continuous and On-Demand Self-Tests. Is DTC B1681 retrieved? GO to H2. H2 CHECK THE PATS TRANSCEIVER FOR VOLTAGE CIRCUIT 16 (RD/LG) PATS Transceiver C297

9 Page 9 of 16 Measure the voltage between PATS transceiver C297 Pin 2, Circuit 16 (RD/LG), harness side and ground. Is the voltage greater than 9 volts? GO to H3. H3 CHECK THE PATS TRANSCEIVER GROUND CIRCUIT 875 (BK/LB) REPAIR circuit 16 (RD/LG). REPEAT the self-test. CLEAR the DTCs. Measure the resistance between PATS transceiver C297 Pin 1, Circuit 875 (BK/LB), harness side and ground. Is the resistance less than 5 ohms? GO to H4. REPAIR Circuit 875 (BK/LB). REPEAT the self-test. CLEAR the DTCs. H4 CHECK THE PATS TRANSCEIVER RECEIVE CIRCUIT FOR VOLTAGE CIRCUIT 1216 (GY/OG) PATS Transceiver C297 Measure the voltage by back probing between PATS transceiver C297 Pin 3, Circuit 1216 (GY/OG), harness side and ground. Is the voltage greater than 9 volts? GO to H6. GO to H5. H5 CHECK THE PATS TRANSCEIVER RECEIVE CIRCUIT FOR SHORT TO GROUND CIRCUIT 1216 (GY/OG)

10 Page 10 of 16 PATS Transceiver C297 Measure the resistance between PATS transceiver C297 Pin 3, Circuit 1216 (GY/OG), harness side and ground. Is the resistance greater than 100 ohms? GO to H6. CHECK Circuit 1216 (GY/OG) for short to ground. If the circuit is OK, INSTALL a new instrument cluster; for additional information, REFER to Section CYCLE the ignition key to RUN using the two encoded ignition keys. GO to Pinpoint Test I. REPEAT the self-test. CLEAR the DTCs. H6 CHECK CIRCUIT 1216 (GY/OG) FOR OPEN If the circuit is not OK, REPAIR Circuit 1216 (GY/OG). REPEAT the self-test. CLEAR the DTCs. Measure the resistance between PATS transceiver C297 Pin 3, Circuit 1216 (GY/OG), harness side and instrument cluster C237 Pin 14, Circuit 1216 (GY/OG), harness side. Is the resistance less than 5 ohms? GO to H7. REPAIR Circuit 1216 (GY/OG). REPEAT the self-test. CLEAR the DTCs. H7 CHECK THE PATS TRANSCEIVER TRANSMIT CIRCUIT FOR VOLTAGE CIRCUIT 1215 (WH/LG) PATS Transceiver C297 Measure the voltage by back probing between PATS transceiver C297 Pin 4, Circuit 1215 (WH/LG), harness side and ground.

11 Page 11 of 16 Is the voltage greater than 9 volts? GO to H9. GO to H8. H8 CHECK THE PATS TRANSCEIVER TRANSMIT CIRCUIT FOR OPEN CIRCUIT 1215 (WH/LG) PATS Transceiver C297 Measure the resistance between PATS transceiver C297 Pin 4, Circuit 1215 (WH/LG), harness side and ground. Is the resistance greater than 100 ohms? GO to H9. CHECK Circuit 1215 (WH/LG) for short to ground. H9 CHECK THE PATS TRANSMIT CIRCUIT FOR PROPER OPERATION CIRCUIT 1215 (WH/LG) If the circuit is OK, INSTALL a new instrument cluster; for additional information, REFER to Section CYCLE the ignition to RUN using two encoded ignition keys. GO to Pinpoint Test I. REPEAT the self-test. CLEAR the DTCs. If the circuit is not OK, REPAIR Circuit 1215 (WH/LG). REPEAT the self-test. CLEAR the DTCs. PATS Transceiver C297 Trigger the instrument cluster active command TRANSMIT SIGNAL COMMAND to ON. Measure the voltage by back probing between PATS transceiver C297 Pin 4, Circuit 1215 (WH/LG), harness side and ground. Does the voltage drop from greater than 9 volts to less than 1 volt when the instrument cluster active command is triggered on? GO to H10. CHECK Circuit 1215 (WH/LG) for continuity to instrument cluster C256 Pin 6. If the circuit is OK, INSTALL a new instrument cluster; for additional information, REFER to Section CYCLE the ignition to RUN using two encoded ignition keys. GO to Pinpoint Test I. REPEAT the self-test. CLEAR the DTCs.

12 Page 12 of 16 H10 CHECK THE PATS SYSTEM WITH A NEW PATS TRANSCEIVER If the circuit is not OK, REPAIR Circuit 1215 (WH/LG). REPEAT the self-test. CLEAR the DTCs. INSTALL a new PATS transceiver; for additional information, refer to Module Passive Anti-Theft Transceiver. Instrument Cluster On-Demand Self-Test Is DTC B1681 retrieved? GO to H11. H11 CHECK THE PATS SYSTEM WITH A NEW INSTRUMENT CLUSTER INSTALL a new instrument cluster; for additional information, refer to Section Cycle the ignition to RUN using two encoded ignition keys. Go to Pinpoint Test I. Instrument Cluster On-Demand Self-Test Is DTC B1681 retrieved? REPAIR Circuits 875 (BK/LB), 16 (RD/LG), 1215 (WH/LG), and 1216 (GY/OG). REPEAT the self-test. CLEAR the DTCs. If no DTCs are retrieved, the system is OK. If other DTCs are retrieved, for additional information, REFER to the Instrument Cluster Diagnostic Trouble Code (DTC) Index. PINPOINT TEST I: THE ANTI-THEFT SYSTEM DOES NOT OPERATE CORRECTLY PCM ID DOES NOT MATCH BETWEEN INSTRUMENT CLUSTER AND PCM I1 RETRIEVE DTCS FROM INSTRUMENT CLUSTER SELF-TESTS NGS Retrieve and document continuous DTCs. Instrument Cluster Continuous Self- Test

13 Page 13 of 16 Clear Continuous DTCs Retrieve and document on demand DTCs. Instrument Cluster On- Demand Self-Test Is DTC B2139 retrieved? GO to I2. I2 CLEAR THE PCM ID FROM THE INSTRUMENT CLUSTER AND THE PCM Carry out the security access procedure for the instrument cluster; for additional information, refer to Security Access Procedure. NOTE: Do NOT carry out ignition key code erase. Select PARAMETER RESET command for the instrument cluster. Use the diagnostic card for PCM Active Command Keep Alive Memory Reset. Select PARAMETER RESET command for the PCM. Turn the ignition switch to RUN for three seconds. Clear instrument cluster continuous DTCs. Retrieve instrument cluster Continuous DTCs. Instrument Cluster Continuous Self- Test Is DTC B2139 retrieved? VERIFY PCM calibration is correct for the vehicle. If correct, REPEAT Step 2. If the fault code persists, INSTALL a new instrument cluster; for additional information, REFER to Section CYCLE the ignition to RUN using two encoded ignition keys. REPEAT the self-test. CLEAR the DTCs. If DTC B2139 still exists, INSTALL a new PCM; for additional information, REFER to Section REPEAT the self-test. CLEAR the DTCs. CHECK for any other DTCs. REFER to the Instrument Cluster Diagnostic Trouble Code (DTC) Index. PINPOINT TEST J: THE ANTI-THEFT SYSTEM DOES NOT OPERATE CORRECTLY NVM CONFIGURATION FAILURE (NO PCM ID EXCHANGED BETWEEN INSTRUMENT CLUSTER AND PCM) J1 USE THE RECORDED DTCS FROM THE INSTRUMENT CLUSTER SELF-TESTS Use the recorded results from instrument cluster Continuous and On-Demand Self-Tests. Are any DTCs retrieved? If only DTC B2141 is retrieved, GO to J2. If DTC U1147 and DTC B2141 are retrieved, GO to Pinpoint Test K. J2 CARRY OUT THE PCM ACTIVE COMMAND KEEP ALIVE MEMORY RESET Use the diagnostic card for PCM Active Command Keep Alive Memory Reset.

14 Page 14 of 16 Leave the key in the run position for 30 seconds. Start the vehicle. Does the vehicle start? GO to J3. J3 USE THE RECORDED DTCS FROM INSTRUMENT CLUSTER SELF-TEST Retrieve and document instrument cluster continuous DTCs. Instrument Cluster Continuous Self-Test Clear Continuous DTCs Retrieve and document instrument cluster on-demand DTCs. Instrument Cluster On- Demand Self-Test Is DTC B2141 retrieved? REPEAT Pinpoint Test Step J2. If the fault persists, verify the PCM calibration. If the calibration is OK, INSTALL a new instrument cluster. For additional information, REFER to Section CYCLE the ignition key to RUN using two encoded ignition keys. GO to Pinpoint Test I. REPEAT the self-test. CLEAR the DTCs. REFER to the Instrument Cluster Diagnostic Trouble Code (DTC) Index. PINPOINT TEST K: THE ANTI-THEFT SYSTEM DOES NOT OPERATE CORRECTLY FAULTY SCP COMMUNICATION NETWORK OR INCORRECT PCM CALIBRATION K1 CHECK THE ANTI-THEFT INDICATOR FOR CORRECT OPERATION Verify the theft indicator proves out correctly. Does the vehicle start once the theft indicator proves out? If the vehicle starts, VERIFY proper PCM calibration for vehicle. For additional information, REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual Section 3. GO to K2. K2 CHECK THE PCM DIAGNOSTIC CAPABILITY

15 Page 15 of 16 NGS Retrieve and document continuous PCM DTCs. PCM Continuous Self- Test Clear Continuous DTCs Retrieve and document PCM KOEO DTCs. PCM KOEO Self-Test Does NGS communicate with the PCM? GO to K3. REFER to Section K3 USE THE RECORDED DTCS FROM THE INSTRUMENT CLUSTER SELF-TESTS Use the recorded results from instrument cluster Continuous and On-Demand Self-Tests. Is DTC P1260 retrieved? GO to K4. VERIFY PCM power and ground. For additional information, REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual Section 3. K4 CHECK THE SCP COMMUNICATION NETWORK Repeat Inspection and Verification steps three through seven; refer to Inspection and Verification. Retrieve and document instrument cluster continuous DTCs. Instrument Cluster Continuous Self- Test Clear Continuous DTCs Retrieve and document instrument cluster on-demand DTCs. Instrument Cluster On- Demand Self-Test Is DTC U1147 retrieved? INSTALL a new instrument cluster; for additional information, REFER to Section CYCLE the ignition to RUN using two encoded ignition keys. GO to Pinpoint Test I. CLEAR the DTCs. TEST the system for normal operation. If DTC U1147 is still present, INSTALL a new PCM; for additional information, REFER to Section REPEAT the self-test. CLEAR the DTCs. (You must follow Pinpoint Test I to initialize the module).

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