2004 Explorer/Mountaineer Workshop Manual

Transcription

1 Page 1 of 30 SECTION : Information, Gauges and Warning Devices 2004 Explorer/Mountaineer Workshop Manual DIAGNOSIS AND TESTING Procedure revision date: 02/18/2008 (IC) Printable View (606 KB) Refer to Wiring Diagrams Cell 60 for schematic and connector information. Special Tool(s) 73III Automotive Meter 105-R0057 or equivalent Gauge System Tester 014-R1063 or equivalent Worldwide Diagnostic System (WDS) 418 F224, New Generation STAR (NGS) Tester 418-F052, or equivalent diagnostic tool with appropriate adapter cable Inspection and Verification 1. Verify the customer concern. 2. Visually inspect for obvious signs of mechanical or electrical damage. Visual Inspection Chart Mechanical Engine oil level Door adjustment Engine coolant level Fuel tank Fuel evaporative system Washer fluid level Brake fluid level Electrical Battery junction box (BJB) fuse 15 (5A) Central junction box (CJB) fuse(s): 15 (5A) 21 (5A) Miniature bulb(s) Circuitry cluster 3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step. 4. If the cause is not visually evident, connect the diagnostic tool to the data link connector and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool 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. 5. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating manual. 6. Carry out the diagnostic tool data link test. If the diagnostic tool responds with: UBP or CAN circuit fault; all electronic control units no response/not equipped, refer to Section response/not equipped for the instrument cluster, GO to Pinpoint Test G. For the vehicle security module, refer to Section ; for the anti-lock brake system (ABS), refer to Section ; for the restraint control module (RCM), refer to Section 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. 7. If the DTCs retrieved are related to the concern, go to the Diagnostic Trouble Code (DTC) Index or the Powertrain Control Module (PCM) Diagnostic Trouble Code (DTC) Index to continue diagnostics. For all other DTCs, refer to Section If no DTCs related to the concern are retrieved, GO to Symptom Chart to continue diagnostics. Diagnostic Trouble Code (DTC) Index DTC Description Source Action B1201 Fuel Sender Circuit Failure B1204 Fuel Sender Circuit Short to Ground B1205 Select/Reset Button Assembly Circuit Failure B1209 Select/Reset Button Assembly Circuit Failure B1255 Air Temperature External Sensor Circuit Open B1257 Air Temperature External Sensor Circuit Short to Ground GO to Pinpoint Test H. GO to Pinpoint Test H. CHECK select/reset button for binding and sticking. GO to Pinpoint Test AN. CHECK select/reset button for binding and sticking. GO to Pinpoint Test AN. GO to Pinpoint Test AE. GO to Pinpoint Test AE.

2 Page 2 of 30 B1317 Battery Voltage High B1318 Battery Voltage Low B1342 ECU is Defective B1345 Heated Backlight Input Circuit Short to Ground B1352 Ignition Key-In Circuit Failure B1360 Ignition Run/Acc Circuit Open B2143 NVM Memory Failure B2477 Module Configuration Failure B2499 Courtesy Lamp Output Failure B2659 Courtesy Switch Fault C1284 Engine Oil Pressure Switch Failure U1900 CAN Communication Bus Fault U1950 UBP Communication Bus Fault U2013 Compass Module is t Responding GO to Pinpoint Test I. GO to Pinpoint Test I. INSTALL a new instrument cluster. REFER to (IC) in this section. TEST the system for normal REFER to Section TEST the system for normal GO to Pinpoint Test AV. GO to Pinpoint Test G. GO to Pinpoint Test AE. REFER to Section to continue diagnosis on the module configuration. REFER to Section to continue diagnosis of the courtesy lamps. REFER to Section to continue diagnosis of the courtesy lamps. GO to Pinpoint Test J. REFER to Section to continue communication diagnosis. REFER to Section to continue communication diagnosis. REFER to Information And Message Center in this section. For a complete list of instrument cluster DTCs, refer to Section Powertrain Control Module (PCM) Diagnostic Trouble Code (DTC) Index DTC Description Source Action P0457 Fuel Fill Cap Off PCM GO to Pinpoint Test P. P0460 Fuel Level Sensor A Circuit PCM REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual first. If sent here from the PC/ED manual, GO to Pinpoint Test H. P0461 Fuel Level Sensor A Circuit Range/Performance PCM REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual first. If sent here from the PC/ED manual, GO to Pinpoint Test H. P0462 Fuel Level Sensor A Circuit Low PCM REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual first. If sent here from the PC/ED manual, GO to Pinpoint Test H. P0463 Fuel Level Sensor A Circuit High PCM REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual first. If sent here from the PC/ED manual, GO to Pinpoint Test H. For a complete list of PCM DTCs, refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual. Self-Diagnostic Mode To enter the instrument cluster self diagnostic mode with the engine off, press and hold the odometer reset button (base cluster) or the message center reset button (message center cluster). Turn the key to the RUN position and hold until the display indicates test (base cluster) or TEST (message center cluster) usually within three to five seconds. Press the reset button once to advance through each stage of the self-test. To exit the instrument cluster self-test mode, turn the ignition to the OFF position. If no DTCs related to the concern are retrieved, GO to Symptom Chart to continue diagnostics. Self-Diagnostic Mode Base cluster display Message center cluster display Description test TEST Initial entry display into self-test mode. GAGE SWEEP GAUGES Carries out gauge sweep of all gauges, then displays the present gauge values. Also carries out the checksum test on ROM and EEPROM. All segments illuminated All segments illuminated Illuminates all odometer segments. bulb TEST TELLTALES Illuminates all micro-controlled lamps and LEDs. PART NUMBER, #### ## Displays alpha-numeric part number. #### Displays alpha-numeric part number prefix (first four digits). #### Suffix (last two digits of the part number are displayed as two byte hexadecimal number). ###### SERIAL NUMBER ###### Displays serial number in decimal. i9nin# IGNITION KEY, # Displays key-in-ignition status. r #### ROM LEVEL ####, CHKSUM #### Returns to normal operation of all micro-controlled lamps and LEDs and displays hexadecimal value for read-only memory (ROM) level. nr#### NVM LEVEL ##, CHKSUM Displays hexadecimal ROM level and type as stored in non-volatile memory (NVM).

3 Page 3 of 30 #### EE ## Displays hexadecimal value for EE level. dt #### FINAL DATE, #### Displays hexadecimal coding of final manufacturing test date. CF1-CF4 MODULE CONFIG, BYTE1- BYTE4=## Displays hexadecimal of bytes 1-4 of module configuration settings. dtc #### DIAG TROUBLE, CODE: #### Displays a 16-bit DTC in hexadecimal format. DTCs displayed are those detected in continuous operation, not during the self-test. E ###.# VEHICLE SPEED, ###.# MPH Displays English speed value being input, speedometer will indicate present speed. ###.# VEHICLE SPEED, ###.# KPH Displays metric speed value being input, speedometer will indicate present speed. t #### TACH VALUE, ####RPM Displays the tachometer value being input to the instrument cluster. Tachometer will indicate present rpm. F ### FUEL LEVEL A/D, ### Displays present fuel level analog/digital ratio input in decimal. The instrument cluster will indicate present fuel level. FP ### FUEL LEVEL %, ### Displays present fuel level percent status in decimal. ### C COOLANT TEMP, ### Displays last temperature gauge input value from CAN, temperature gauge will indicate present temperature. odo### ODO CAN INPUT, ### Displays the odometer input received through CAN in decimal. OIL### OIL PRESSURE, ### Displays the last analog/digital reading of the engine oil pressure switch contact resistance, oil gauge will indicate present level. br # BRAKE FLUID AD, # Displays the brake fluid level received from the ABS module. bat ##.# BATTERY VOLTS, ##.# Displays present SBATT reading in 10th of volt. PWM DIM STEP, ## Displays dimming step in decimal. rho ### PWM DIM INPUT, ### Displays present hexadecimal pulse width modulation (PWM) dimming input. Prnd## PRNDL, ## Displays hexadecimal value of PRNDL inputs packed into a single byte. Par-# PARK BRAKE, # Displays input status of the park brake switch. door1-# DOOR AJAR, # Displays input status of any door ajar input. door2-# LIFTGATE AJAR, # Displays input status of liftgate ajar input. Stbt-# SEATBELT, # Displays input status of safety belt switch. RUN/START, # RUN/START sense circuit check. RUN/ACC, # RUN/ACC sense circuit check. CHE ## CHECK ENGINE, ### Displays 8 bit hexadecimal value of CAN malfunction indicator lamp (MIL) telltale command. PA, Pb, PE, PG ## PORT A, B, E and J, ## Displays 8-bit hexadecimal value for the ports A, b, E and G (base clusters) or J (message center clusters) readings. PP, PS, PT, PCAn, PAD0 and PAD1 ## PORT H, IB, P, S and T, ## Displays 8-bit hexadecimal value for the ports P, S, T, CAn, AD0 and AD1 (base clusters) or H, IB, P, S, and T (message center clusters) in analog/digital readings. AD00-AD17 ## PORT AD00-AD17 Displays 8-bit hexadecimal value for the ports AD00-AD17 in analog/digital readings. Symptom Chart Symptom Chart Condition Possible Sources Action communication with the anti-lock brake system (ABS) module communication with the vehicle security module communication with the instrument cluster Incorrect fuel gauge indication Incorrect voltage gauge indication Incorrect oil pressure gauge indication Incorrect temperature gauge indication The speedometer/odometer is inoperative The tachometer is inoperative The door ajar indicator is inoperative (chime is operative)/does not operate correctly Central junction box (CJB) fuse 22 (10A). Controller area network (CAN) circuits. ABS module. Central junction box (CJB) fuse 20 (5A). Universal asynchronous receiver-transmitter (UART)-based protocol (UBP) communication network. Vehicle security module. Controller area network (CAN) and/or universal asynchronous receiver-transmitter (UART)-based protocol (UBP) circuits. Fuel level sensor. Fuel pump module. Fuel tank. Charging system. Powertrain control module (PCM). Engine oil pressure switch. Electronic coolant temperature (ECT) sensor. Powertrain control module (PCM). Powertrain control module (PCM). Powertrain control module (PCM). Vehicle security module. REFER to Section to continue communication diagnosis. REFER to Section to continue communication diagnosis. GO to Pinpoint Test G. GO to Pinpoint Test H. GO to Pinpoint Test I. GO to Pinpoint Test J. GO to Pinpoint Test K. GO to Pinpoint Test L. GO to Pinpoint Test M. GO to Pinpoint Test N.

4 Page 4 of 30 The safety belt warning indicator is inoperative (chime is operative)/does not operate correctly Inaccurate speedometer reading The CHECK FUEL CAP indicator is never on The CHECK FUEL CAP indicator is always on The anti-lock brake system (ABS) warning indicator is never on The anti-lock brake system (ABS) warning indicator is always on The brake warning indicator is never/always on The SERVICE ENGINE SOON indicator is never on The SERVICE ENGINE SOON indicator is always on The charging system warning indicator is never on The charging system warning indicator is always on The air bag indicator warning is never/always on The high beam indicator is never on The LH turn indicator is never on The RH turn indicator is never on The 4X4 HIGH/AWD LOCK range indicator is never/always on The 4X4 LOW range indicator is never/always on The speed control indicator is never/always on The check gauge warning indicator is never/always on The O/D OFF indicator is never/always on The traction control indicator is never/always on The integrated circuit display is inoperative The instrument cluster is inoperative The low tire warning indicator is never on The electronic throttle control indicator is never/always on Restraint control module (RCM). Safety belt switch (part of the driver belt buckle). Anti-lock brake system (ABS) module. Tires. Powertrain control module (PCM). Fuel evaporative system. Powertrain control module (PCM). Anti-lock brake system (ABS) module. Anti-lock brake system (ABS) module. Brake fluid level switch. Parking brake switch. Anti-lock brake system (ABS) module. Powertrain control module (PCM). Diagnostic trouble code (DTC) related concern(s). Charging system. Powertrain control module (PCM). Generator (charging system). Powertrain control module (PCM). Restraint control module (RCM). High beam indicator bulb. LH turn indicator bulb. RH turn indicator bulb. Four-wheel drive module. Four-wheel drive module. Speed control indicator bulb. Speed control servo. Powertrain control module (PCM). Powertrain control module (PCM). Powertrain control module (PCM). Anti-lock brake system/traction control/interactive vehicle dynamics (ABS/TC/IVD) module. Powertrain control module (PCM). GO to Pinpoint Test O. GO to Pinpoint Test L. GO to Pinpoint Test P. REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual to continue the diagnosis. GO to Pinpoint Test Q. REFER to Section to continue diagnosis. GO to Pinpoint Test R. GO to Pinpoint Test S. REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual to continue diagnosis. GO to Pinpoint Test T. REFER to Section to continue diagnosis. GO to Pinpoint Test U. GO to Pinpoint Test V. GO to Pinpoint Test W. GO to Pinpoint Test X. GO to Pinpoint Test Y. GO to Pinpoint Test Z. GO to Pinpoint Test AA. GO to Pinpoint Test AB. GO to Pinpoint Test AC. GO to Pinpoint Test AD. If the integrated circuit display is inoperative, GO to Pinpoint Test AE. If the temperature display is inoperative, GO to Pinpoint Test AE. If the compass is inoperative, GO to Pinpoint Test AL. GO to Pinpoint Test AF. GO to Pinpoint Test AG. GO to Pinpoint Test AH. Connector Circuit Reference Engine Oil Pressure Switch C103

5 Page 5 of 30 Pin Number (s) Circuit Designation/Description rmal Condition/Measurement 1 31 (WH/RD) oil pressure signal circuit 0 volts, less than 5 ohms resistance between the instrument cluster and the engine oil pressure switch. Greater than 10,000 ohms between the instrument cluster and ground. Brake Fluid Level Switch C124 Pin Number (s) Circuit Designation/Description rmal Condition/Measurement (BK) switch ground 0 volts, less than 5 ohms between the brake fluid level switch and ground (TN/LG) brake fluid level return circuit (VT/WH) brake fluid level signal circuit 0 volts, less than 5 ohms resistance between the anti-lock brake system (ABS) module and the brake fluid level switch. Greater than 10,000 ohms between the ABS module and ground. 0 volts, less than 5 ohms resistance between the ABS module and the brake fluid level switch. Greater than 10,000 ohms between the ABS module and ground. Outside Air Temperature Sensor C132 Pin Number (s) Circuit Designation/Description rmal Condition/Measurement (DB/WH) outside air temperature sensor return circuit (DB/YE) outside air temperature signal circuit 0 volts, less than 5 ohms resistance between the instrument cluster and the outside air temperature sensor. Greater than 10,000 ohms between the instrument cluster and ground. 0 volts, less than 5 ohms resistance between the instrument cluster and the outside air temperature sensor. Greater than 10,000 ohms between the instrument cluster and ground. Anti-Lock Brake System (ABS) Module C155 Pin Number (s) Circuit Designation/Description rmal Condition/Measurement (TN/LG) brake fluid level return circuit (VT/WH) brake fluid level signal circuit 0 volts, less than 5 ohms resistance between the ABS module and the brake fluid level switch. Greater than 10,000 ohms between the ABS module and ground. 0 volts, less than 5 ohms resistance between the ABS module and the brake fluid level switch. Greater than 10,000 ohms between the ABS module and ground. C220a

6 Page 6 of 30 Pin Number(s) Circuit Designation/Description rmal Condition/Measurement (BK/LG) B+ keep alive power feed Greater than 10 volts with key ON or OFF. Less than 5 ohms between the instrument cluster and the battery junction box (BJB) and greater than 10,000 ohms between the instrument cluster and ground (BK/LB) logic ground 0 volts, 5 ohms or less between the instrument cluster and ground (RD/LG) low washer fluid switched ground circuit (PK/BK) B+ power feed, hot in the START/RUN positions (DB) safety belt warning indicator control circuit (LG/RD) parking brake switch ground control circuit (LG/OG) RH turn indicator power input 0 volts, 5 ohms or less between the instrument cluster and the low washer fluid switch. Greater than 10,000 ohms between the instrument cluster and ground. Greater than 10 volts. Less than 5 ohms between the instrument cluster and the central junction box (CJB) and greater than 10,000 ohms between the instrument cluster and ground. 0 volts, 5 ohms or less between the instrument cluster and the restraint control module. Greater than 10,000 ohms between the instrument cluster and ground. 0 volts, 5 ohms or less between the instrument cluster and the parking brake switch with the parking brake applied. Greater than 10,000 ohms between the instrument cluster and ground with the parking brake released. 0 volts with the turn indicator in the OFF position. Alternating voltage between 0 volts and 10 volts in the RH turn position. Less than 5 ohms between the instrument cluster and the multifunction switch. Greater than 10,000 ohms between the instrument cluster and ground. C220b Pin Number(s) Circuit Designation/Description rmal Condition/Measurement (LB/RD) LH turn indicator power input 0 volts with turn indicator in the OFF position. Alternating voltage between 0 volts and 10 volts in the LH turn position. Less than 5 ohms between the instrument cluster and the multifunction switch. Greater than 10,000 ohms between the instrument cluster and ground (LB/YE) fuel level signal return 0 volts, 5 ohms or less between the instrument cluster and the fuel pump module. Greater than 10,000 ohms between the instrument cluster and ground (BK/YE) air bag warning indicator control circuit (LG/VT) fuel level variable input signal 5 31 (WH/RD) oil pressure control ground circuit 0 volts, 5 ohms or less between the instrument cluster and the restraint control module. Greater than 10,000 ohms between the instrument cluster and ground. 0 volts, 5 ohms or less between the instrument cluster and the fuel pump module. Greater than 10,000 ohms between the instrument cluster and ground. 0 volts, 5 ohms or less between the instrument cluster and the engine oil pressure switch. Greater than 10,000 ohms between the instrument cluster and ground (BK) bulb ground circuit 0 volts, less than 5 ohms between the instrument cluster and ground (LG/BK) high beam indicator power input (DB/YE) outside air temperature signal circuit (LB/PK) B+ power feed in the RUN/ACC position (DB/WH) outside air temperature return circuit 0 volts with high beams OFF and greater than 10 volts with the high beams in the ON position. Less than 5 ohms between the instrument cluster and the multifunction switch and greater than 10,000 ohms between the instrument cluster and ground. 0 volts, less than 5 ohms between the instrument cluster and the outside air temperature sensor and greater than 10,000 ohms between the instrument cluster and ground. Greater than 10 volts. Less than 5 ohms resistance between the instrument cluster and the CJB and greater than 10,000 ohms between the instrument cluster and ground. 0 volts, less than 5 ohms between the instrument cluster and the outside air temperature sensor and greater than 10,000 ohms between the instrument cluster and ground. Restraint Control Module (RCM) C310a Pin Number (s) Circuit Designation/Description rmal Condition/Measurement (BK/YE) air bag warning indicator control circuit (DB) safety belt warning indicator control circuit 0 volts, less than 5 ohms resistance between the instrument cluster and the air bag module. Greater than 10,000 ohms between the instrument cluster and ground. 0 volts, 5 ohms or less between the instrument cluster and the restraint control module. Greater than 10,000 ohms between the instrument cluster and ground.

7 Page 7 of 30 Fuel Pump Module C431 Pin Number (s) Circuit Designation/Description rmal Condition/Measurement (RD/YE) flex-fuel module B+ power Greater than 10 volts, less than 5 ohm resistance between the instrument cluster and the fuel pump module. Greater than 10,000 ohms between the instrument cluster and ground (LB/YE) fuel level signal return 0 volts, 5 ohms or less between the instrument cluster and the fuel pump module. Greater than 10,000 ohms between the instrument cluster and ground (LG/VT) fuel level variable input signal 0 volts, variable resistance between the instrument cluster and ground from 15 ohms and 160 ohms depending on the position of the float arm with relation to the fuel level. Fuel Pump Module C438 Pin Number (s) Circuit Designation/Description rmal Condition/Measurement (LB/YE) fuel level signal return 0 volts, 5 ohms or less between the instrument cluster and the fuel pump module. Greater than 10,000 ohms between the instrument cluster and ground (LG/VT) fuel level variable input signal 0 volts, variable resistance between the instrument cluster and ground from 15 ohms and 160 ohms depending on the position of the float arm with relation to the fuel level. Parking Brake Switch C2015 Pin Number (s) Circuit Designation/Description rmal Condition/Measurement (LG/RD) brake warning indicator, parking brake input circuit. 0 volts, less than 5 ohms resistance between the instrument cluster and the parking brake switch. Greater than 10,000 ohms between the instrument cluster and ground (BK) brake switch ground. 0 volts, less than 5 ohms resistance between the parking brake switch and ground. Pinpoint Test G: Communication With The rmal Operation Under normal operation the instrument cluster communicates interactively with other electronic modules using the CAN circuits and the UART-based protocol (UBP) communication network. CAN communication is accomplished through the use of an unshielded, twisted pair cable data bus line, circuits 3125 (TN/YE) and 3126 (TN/YE). UBP communication is accomplished through a single data bus line, circuit 693 (OG). For additional information about the communications network, refer to Section With the key in the START/RUN position, the instrument cluster receives power from the CJB fuse 21 (5A), circuit 489 (PK/BK). When in the RUN/ACC position, power is received from the CJB fuse 15 (5A), circuit 295 (LB/PK). With the ignition in the OFF position, the instrument cluster receives its keep-alive power from the battery junction box (BJB) fuse 49 (15A), circuit 3049 (BK/LG). The instrument cluster grounding is accomplished through circuit 1203 (BK/LB) and the bulb grounding is accomplished through circuit 1205 (BK). circuit 295 (LB/PK) open or shorted to ground circuit 489 (PK/BK) open or shorted to ground circuit 1203 (BK/LB) open or shorted to power circuit 1205 (BK) open or shorted to power circuit 3049 (BK/LG) open or shorted to ground PINPOINT TEST G: NO COMMUNICATION WITH THE INSTRUMENT CLUSTER

8 Page 8 of 30 G1 CHECK THE INSTRUMENT CLUSTER POWER SUPPLY Disconnect: C220a and C220b. Using the following table, measure the voltage between the instrument cluster, harness side and ground. Connector/Pin C220b-18 C220a-1 C220a-7 Circuit 295 (LB/PK) 3049 (BK/LG) 489 (PK/BK) GO to G2. REPAIR the circuit(s) in question. TEST the system for normal Are the voltages greater than 10 volts? G2 CHECK INSTRUMENT CLUSTER GROUND CIRCUITS 1205 (BK) AND 1203 (BK/LB) Measure the resistance between the instrument cluster C220b-11, circuit 1205 (BK), harness side and ground; and between the REFER to Section to continue instrument cluster C220a-2, circuit 1203 (BK/LB), harness side and ground. communication diagnosis. REPAIR the circuit(s) in question. TEST the system for normal Are the resistances less than 5 ohms? Pinpoint Test H: Incorrect Fuel Gauge Indication rmal Operation The fuel level sender unit is hardwired to the instrument cluster between the signal circuit 1356 (LG/VT) and the return circuit 1357 (LB/YE), which is grounded internally within the instrument cluster. The instrument cluster monitors the resistance readings that are sent from the fuel pump module and commands the fuel gauge with a corresponding movement of the pointer. The instrument cluster sets DTC B1201 if circuit 1356 (LG/VT) is open or shorted to battery. cluster DTC B1204 is set if circuit 1356 (LG/VT) is shorted to ground. (IC) DTC Chart DTC B1201 Fuel Sender Circuit Failure B1204 Fuel Sender Circuit Short To Ground Fault Trigger Conditions A continuous and on-demand DTC that sets if the instrument cluster detects an open or short to voltage for greater then 33 seconds on the fuel level input, circuit 1356 (LG/VT). A continuous and on-demand DTC that sets if the instrument cluster detects a short to ground for greater then 33 seconds on the fuel level input, circuit circuit 1356 (LG/VT) or if circuits 1356 (LG/VT) and 1357 (LB/YE) are shorted together. PCM DTCs DTC Description P0460 Fuel Level Sensor A Circuit P0461 Fuel Level Sensor A Circuit Range/Performance circuit 640 (RD/YE) open circuit 1356 (LG/VT) open, short to ground, or short to voltage circuit 1357 (LB/YE) open fuel tank fuel level sensor fuel pump module Fault Trigger Conditions Sets when the PCM determines the value of the fuel level input signal is stuck, that the fuel level input signal does not change or does not correspond with the calculated fuel usage. Sets when the PCM determines the fuel level input signal repeatedly moves in and out of range, exceeding the minimum or maximum allowable calibrated parameters for a specified fuel fill percentage in the fuel tank. P0462 Fuel Level Sensor A Circuit Low Sets in the PCM when the PCM detects a short to ground on the fuel pump module signal circuit based on the messaged input received from the instrument cluster. P0463 Fuel Level Sensor A Circuit High Sets in the PCM when the PCM detects an open or a short to voltage on the fuel pump module signal circuit based on the messaged input received from the instrument cluster. PINPOINT TEST H: INCORRECT FUEL GAUGE INDICATION NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. H1 CARRY OUT THE INSTRUMENT CLUSTER FUEL GAUGE ACTIVE COMMAND USING THE DIAGNOSTIC TOOL Enter the following diagnostic mode on the scan tool: Active Command. Select the instrument cluster fuel level control active command. Trigger, monitor, and scroll the fuel level at: 0%, 50%, and 100%. Does the fuel gauge display: below E with 0%, half with 50%, and full stop with 100%? GO to H2. GO to H10.

9 Page 9 of 30 H2 CHECK THE FUEL GAUGE OPERATION NOTE: The fuse must be removed to reset the fuel gauge timers. Failure to complete this step may result in erroneous test results. Remove the battery junction box (BJB) fuse 15 (15A). Wait 1 minute and reinstall the fuse. Disconnect: Fuel Pump Module Assembly C431 (4.0L) or C438 (4.6L). Connect one lead of the Gauge System Tester to the fuel pump module assembly C431-8 (4.0L), or C438-8 (4.6L), circuit 1356 (LG/VT), harness side and the other lead to the fuel pump module assembly C431-4 (4.0L) or C438-5 (4.6L), circuit 1357 (LB/YE), harness side. DISCONNECT the instrument gauge system tester. GO to H3. DISCONNECT the instrument gauge system tester. GO to H7. Apply the brake and move the transmission shift lever from P (park) to D (drive). Wait 10 seconds, and move the transmission shift lever back to P (park). Wait 30 seconds. Do not change the tool settings or the ignition switch position until 30 seconds have elapsed. Set the tester to 160 ohms. Apply the brake and move the transmission shift lever from P (park) to D (drive). Wait 10 seconds, and move the transmission shift lever back to P (park). Wait 30 seconds. Do not change the tool settings or the ignition switch position until 30 seconds have elapsed. Wait 30 seconds. Do not change the tool settings or the ignition switch position until 30 seconds have elapsed. Set the tester to 15 ohms. Apply the brake and move the transmission shift lever from P (park) to D (drive). Wait 10 seconds, and move the transmission shift lever back to P (park). Wait 30 seconds. Do not change the tool settings or the ignition switch position until 30 seconds have elapsed. Observe the fuel gauge. The fuel gauge should read E (empty) or below. Wait 30 seconds. Do not change the tool settings or the ignition switch position until 30 seconds have elapsed. Set the tester to 160 ohms. NOTE: Wait 1 minute for the fuel gauge to respond. Observe the fuel gauge. The fuel gauge should read F (full) or above. Does the fuel gauge operate correctly? H3 CHECK THE FUEL TANK Check the fuel tank for any damage or deformation. Is the fuel tank OK? If equipped with 4.0L engines, GO to H4. If equipped with 4.6L engines, GO to H6. H4 CHECK CIRCUIT 640 (RD/YE) FOR VOLTAGE Measure the voltage between the fuel pump module assembly C431-2, circuit 640 (RD/YE), harness side and ground. INSTALL a new fuel tank. REFER to Section TEST the system for normal For vehicles built through 2/2004, GO to H6. For vehicles built after 2/2004, GO to H5. REPAIR the circuit. TEST the system for normal Is the voltage greater than 10 volts? H5 CHECK THE FUEL PUMP MODULE ASSEMBLY OPERATION NOTE: The fuel level sender unit resistance will measure between approximately 7 ohms ± 2 ohm at the lower stop position and 138 ohms ± 4 ohm at the upper stop position. Remove the fuel pump module. Refer to Section Measure the resistance between the fuel level sensor input, component side, and the fuel level sensor output, component side, while moving the float arm between the upper stop position and the lower stop position. INSTALL a new flex-fuel converter wire harness. TEST the system for normal GO to H6.

10 Page 10 of 30 Does the resistance fall within specifications? H6 CHECK THE FUEL LEVEL SENSOR FOR CORRECT OPERATION NOTE: The fuel level sensor resistance will measure between 7 ± 2 ohms at the lower stop position and 138 ± 4 ohms at the upper stop position on 4.0L engines. The fuel level sensor resistance will measure between 15 ± 2 ohms at the lower stop position and 160 ± 4 ohms at the upper stop position on 4.6L engines. NOTE: Disconnect the fuel level sensor input wire from the fuel level sensor for this measurement. Measure the resistance between the fuel level gauge input and the fuel level sensor ground while moving the float arm between the upper stop position and the lower stop position. INSTALL a new fuel pump module. REFER to Section TEST the system for normal INSTALL a new fuel level sensor. REFER to Section TEST the system for normal Does the resistance fall within specifications? H7 CHECK CIRCUIT 1357 (LB/YE) FOR AN OPEN Disconnect: C220b. Measure the resistance between the instrument cluster C220b-2, circuit 1357 (LB/YE), harness side and the fuel pump module assembly C431-4, circuit 1357 (LB/YE), harness side. GO to H8. REPAIR the circuit. TEST the system for normal Is the resistance less than 5 ohms? H8 CHECK CIRCUITS 1356 (LG/VT) AND 1357 (LB/YE) FOR A SHORT TO VOLTAGE Measure the voltage between the instrument cluster C220b-4, circuit 1356 (LG/VT), harness side and ground; and between the instrument cluster C220b-2, circuit 1357 (LG/VT), harness side and ground. REPAIR the circuit in question. TEST the system for normal GO to H9. Is any voltage present? H9 CHECK CIRCUIT 1356 (LG/VT) FOR AN OPEN AND A SHORT TO GROUND Measure the resistance between the instrument cluster C220b-4, circuit 1356 (LG/VT), harness side and the fuel pump module assembly C431-8, circuit 1356 (LG/VT), harness side; and between the instrument cluster C220b-4, circuit 1356 (LG/VT), harness side and ground. GO to H10. REPAIR the circuit. TEST the system for normal

11 Page 11 of 30 Is the resistance less than 5 ohms between the instrument cluster and the fuel pump module assembly; and greater than 10,000 ohms between the instrument cluster and ground? H10 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION INSTALL a new instrument cluster. REFER to (IC) in this section. TEST the system for normal The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. TEST the system for normal Pinpoint Test I: Incorrect Voltage Gauge Indication rmal Operation The instrument cluster uses voltage supplied on circuit 3049 (BK/LG) to determine the voltage gauge pointer position. The instrument cluster will set DTC B1317 if the battery voltage, when in the START/RUN position, exceeds 16.5 volts DC ± 0.5 volts DC. The instrument cluster will set DTC B1318 if battery voltage (when in the START/RUN position) drops below 9 volts DC ± 0.5 volts DC. circuit 3049 (BK/LG) open or short to ground generator PCM PINPOINT TEST I: INCORRECT VOLTAGE GAUGE INDICATION I1 RETRIEVE THE RECORDED DTCS FROM BOTH CONTINUOUS AND ON- DEMAND INSTRUMENT CLUSTER SELF-TESTS Use the recorded instrument cluster DTCs from the continuous and ondemand self-tests. Are any instrument cluster DTCs recorded? If instrument cluster DTC B1317 or B1318 is retrieved, REFER to Section For all other instrument cluster DTCs, REFER to the Diagnostic Trouble Code (DTC) Index in this section. I2 CARRY OUT THE VOLTMETER ACTIVE COMMAND USING THE DIAGNOSTIC TOOL Enter the following diagnostic mode on the scan tool: Active Command. Select the instrument cluster voltmeter active command. Trigger the voltmeter active command. Scroll in three increments 0%, 50% and 100%. Did the voltmeter start at L (low) when at 0%, move to half at 50% and H (high) at 100%? I3 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION Connect all instrument cluster connectors and make sure they seat correctly. GO to I2. REPAIR the charging system. REFER to Section GO to I3. INSTALL a new instrument cluster. REFER to (IC) in this section. TEST the system for normal The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. TEST the system for normal Pinpoint Test J: Incorrect Oil Pressure Gauge Indication rmal Operation The engine oil pressure switch is a normally open switch. When the oil pressure is within normal ranges, the engine oil pressure switch closes and sends a ground signal to the instrument cluster through circuit 31 (WH/RD) and commands the oil pressure gauge to the normal or mid-range position. When the oil pressure is low the engine oil pressure switch opens, removing the ground signal, and the instrument cluster commands the oil pressure gauge to the L (low) position. circuit 31 (WH/RD) open, short to ground or short to power engine oil pressure switch PINPOINT TEST J: INCORRECT OIL PRESSURE GAUGE INDICATION J1 RETRIEVE THE RECORDED DTCS FROM BOTH CONTINUOUS AND ON-DEMAND INSTRUMENT CLUSTER SELF-TESTS Use the recorded instrument cluster DTCs from the continuous and on-demand self-tests. Are any instrument cluster DTCs recorded? If instrument cluster DTC C1284 is retrieved, INSTALL a new engine oil pressure switch. TEST the system for normal

12 Page 12 of 30 For all other instrument cluster DTCs, REFER to the Diagnostic Trouble Code (DTC) Index in this section. J2 CARRY OUT THE OIL PRESSURE GAUGE POINTER POSITION ACTIVE COMMAND USING THE DIAGNOSTIC TOOL Enter the following diagnostic mode on the scan tool: Active Command. Select the instrument cluster oil pressure gauge pointer position active command. Trigger the oil pressure gauge pointer position active command ON then OFF again. Did the engine oil pressure gauge read mid-range when selected ON and L (low) when selected OFF? J3 CHECK THE ENGINE OIL PRESSURE Carry out the engine oil pressure test. Refer to Section Is the oil pressure within specification? GO to J2. GO to J3. GO to J6. GO to J4. J4 CHECK CIRCUIT 31 (WH/RD) FOR AN OPEN OR SHORT TO GROUND Disconnect: C220b. Disconnect: Engine Oil Pressure Switch C103. Measure the resistance between the instrument cluster C220b-5, circuit 31 (WH/RD), harness side and the engine oil pressure switch C103-1, circuit 31 (WH/RD), harness side; and between the instrument cluster C220b-5, circuit 31 (WH/RD), harness side and ground. REPAIR the engine oil pressure. REFER to Section GO to J5. REPAIR the circuit. TEST the system for normal Is the resistance less than 5 ohms between the instrument cluster and the engine oil pressure switch; and greater than 10,000 ohms between the instrument cluster and ground? J5 CHECK CIRCUIT 31 (WH/RD) FOR SHORT TO POWER Measure the voltage between the instrument cluster C220b-5, circuit 31 (WH/RD), harness side and ground. REPAIR the circuit. TEST the system for normal INSTALL a new engine oil pressure switch. TEST the system for normal Is any voltage indicated? J6 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION INSTALL a new instrument cluster. REFER to (IC) in this section. TEST the system for normal The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. TEST the system for normal Pinpoint Test K: Incorrect Temperature Gauge Indication rmal Operation The PCM utilizes the engine coolant temperature (ECT) sensor to measure the engine coolant temperature through circuit 354 (LG/RD). The PCM provides the engine coolant temperature data to the instrument cluster over the CAN, circuits 3125 (RD/YE) and 3126 (TN/YE). circuit 354 (LG/RD) open, short to ground or short to power ECT sensor PCM

13 Page 13 of 30 PINPOINT TEST K: INCORRECT TEMPERATURE GAUGE INDICATION K1 RETRIEVE THE RECORDED DTCS FROM BOTH CONTINUOUS AND ON- DEMAND INSTRUMENT CLUSTER SELF-TESTS Use the recorded instrument cluster DTCs from the continuous and ondemand self-tests. Are any instrument cluster DTCs recorded? If instrument cluster DTC U1073 is retrieved, REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual to continue diagnosis. K2 CARRY OUT THE COOLANT TEMPERATURE GAUGE ACTIVE COMMAND USING THE DIAGNOSTIC TOOL Enter the following diagnostic mode on the scan tool: Active Command. Select the instrument cluster engine coolant active command. Trigger the engine coolant active command. Scroll in three increments: 0%, 50% and 100%. Did the temperature gauge start at cold when at 0%, move to half at 50% and full hot at 100%? K3 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION For all other instrument cluster DTCs, REFER to the Diagnostic Trouble Code (DTC) Index in this section. GO to K2. REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual to continue diagnosis. GO to K3. INSTALL a new instrument cluster. REFER to (IC) in this section. TEST the system for normal The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test. Pinpoint Test L: The Speedometer/Odometer Is Inoperative rmal Operation Vehicle speed information is sent to the instrument cluster by the PCM over the CAN, circuits 3125 (RD/YE) and 3126 (TN/YE). The instrument cluster will set DTC U1123 if it fails to receive the odometer rolling count data from the PCM over the CAN circuits. The instrument cluster will set DTC U1041 if the instrument cluster fails to receive speed input data from the PCM over the CAN network. PCM PINPOINT TEST L: THE SPEEDOMETER/ODOMETER IS INOPERATIVE L1 RETRIEVE THE RECORDED DTCS FROM BOTH CONTINUOUS AND ON- DEMAND INSTRUMENT CLUSTER SELF-TESTS Use the recorded instrument cluster DTCs from the continuous and ondemand self-tests. Are any instrument cluster DTCs recorded? If instrument cluster U1123 is retrieved, REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual to continue diagnosis. L2 CARRY OUT THE SPEEDOMETER ACTIVE COMMAND USING THE DIAGNOSTIC TOOL Enter the following diagnostic mode on the scan tool: Active Command. Select the instrument cluster speedometer active command. Select the instrument cluster speedometer active command. Trigger the speedometer on and off. Does the speedometer begin at 0 km/h (0 mph), move to 193 km/h (120 mph) then return to 0 km/h (0 mph)? L3 MONITOR THE INTEGRATED CIRCUIT DISPLAYS Monitor the compass, air temperature and message center functions of the integrated circuit display. Do the compass, air temperature or message center displays operate correctly? L4 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION If instrument cluster U1041 is retrieved, REFER tosection to continue diagnosis. For all other instrument cluster DTCs, REFER to the Diagnostic Trouble Code (DTC) Index in this section. For an inoperative speedometer, GO to L2. For an inoperative odometer, GO to L3. REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual to continue diagnosis. GO to L4. GO to L4. GO to Pinpoint Test AE. INSTALL a new instrument cluster. REFER to (IC) in this section. TEST the system for normal The system is operating correctly at this time. Concern may have been caused by a loose or

14 Page 14 of 30 corroded connector. CLEAR the DTCs. REPEAT the self-test. Pinpoint Test M: The Tachometer Is Inoperative rmal Operation Engine rpm data is provided to the instrument cluster by the PCM through the CAN, circuits 3125 (RD/YE) and 3126 (TN/YE). PCM PINPOINT TEST M: THE TACHOMETER IS INOPERATIVE M1 CARRY OUT THE TACHOMETER ACTIVE COMMAND USING THE DIAGNOSTIC TOOL Enter the following diagnostic mode on the scan tool: Active Command. Select the instrument cluster tachometer active command. Trigger the tachometer and scroll in increments of 10%. Monitor the tachometer gauge. The tachometer should increase in increments of approximately 700 rpm for each 10% change. Does the tachometer gauge increase within specifications? M2 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual to continue diagnosis. GO to M2. INSTALL a new instrument cluster. REFER to (IC) in this section. TEST the system for normal The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test. Pinpoint Test N: The Door Ajar Warning Indicator Is Inoperative (Chime Is Operative)/Does t Operate Correctly rmal Operation The instrument cluster receives the door ajar status from the vehicle security module over the UBP communication network, circuit 693 (OG). When any of the doors are ajar, the door ajar switch will close, completing a ground signal to the vehicle security module. The vehicle security module receives the door ajar status from the hardwired door ajar switches. The liftgate ajar switch input is hardwired to the vehicle security module in series through circuit 700 (WH/VT) and the liftgate glass ajar switch, circuit 1351 (TN). The door ajar switches are hardwired to the vehicle security module through circuit 761 (GY/RD) (RF), 760 (PK/LB) (RR), 759 (LG/YE) (LR), and 765 (YE/BK) (LF). All of the door ajar switches are grounded through circuit 1205 (BK). vehicle security module PINPOINT TEST N: THE DOOR AJAR WARNING INDICATOR IS INOPERATIVE (CHIME IS OPERATIVE)/DOES NOT OPERATE CORRECTLY N1 CHECK THE INTERIOR LAMPS OPERATION Open and close each door while monitoring the interior lamps. Do the interior lamps operate correctly? GO to N2. N2 VERIFY THE CHIME FUNCTION Verify that the door ajar chime sounds with the driver door open and stops with the door closed. Does the door ajar chime function correctly? N3 CARRY OUT THE INSTRUMENT CLUSTER INDICATOR LAMP CONTROL ACTIVE COMMAND USING THE DIAGNOSTIC TOOL Enter the following diagnostic mode on the scan tool: Active Command. Select the instrument cluster indicator lamp control active command. Trigger the door ajar warning indicator active command. Observe the door ajar indicator. Is the door ajar indicator illuminated? N4 CHECK FOR CORRECT VEHICLE SECURITY MODULE OPERATION Disconnect all vehicle security module connectors. Connect all vehicle security module connectors and make sure they seat correctly. N5 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION REPAIR the interior lamps. REFER to Section GO to N3. REPAIR the door ajar chime. REFER to Warning Devices in this section. GO to N4. GO to N5. INSTALL a new vehicle security module. REFER to Section TEST the system for normal The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test. INSTALL a new instrument cluster. REFER to (IC) in this

15 Page 15 of 30 section. TEST the system for normal The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test. Pinpoint Test O: The Safety Belt Warning Indicator Is Inoperative (Chime Is Operative)/Does t Operate Correctly rmal Operation The safety belt warning indicator is controlled by the instrument cluster based upon the safety belt status received from the RCM. When the safety belt is unbuckled, the safety belt switch closes, providing a ground signal to the RCM through circuit 85 (BN/LB). When the safety belt is buckled, the safety belt switch opens, removing the ground path to the RCM. The RCM, monitoring the safety belt status, provides a ground to the instrument cluster through circuit 1390 (DB) when the safety belt switch is closed (unbuckled). circuit 1390 (DB) open, short to ground or short to power RCM PINPOINT TEST O: THE SAFETY BELT WARNING INDICATOR IS INOPERATIVE (CHIME IS OPERATIVE)/DOES NOT OPERATE CORRECTLY O1 CHECK THE SAFETY BELT WARNING INDICATOR OPERATION Deactivate the restraint control supplemental air bag system. Refer to Section B. Disconnect: RCM C310a. Connect a fused (10A) jumper wire between the RCM C310a-22, circuit 1390 (DB), harness side and ground. GO to O5. GO to O2. Observe the safety belt warning indicator with the jumper wire connected and disconnected. Does the safety belt warning indicator lamp illuminate with the jumper wire connected and turn off when disconnected? O2 CHECK CIRCUIT 1390 (DB) FOR AN OPEN OR SHORT TO GROUND Disconnect: C220a. Measure the resistance between the instrument cluster C220a-13, circuit 1390 (DB), harness side and the restraint control module C310a-22, circuit 1390 (DB), harness side; and between the instrument cluster C220a-13, circuit 1390 (DB), harness side and ground. GO to O3. REPAIR the circuit. TEST the system for normal Is the resistance less than 5 ohms between the instrument cluster and the restraint control module; and greater than 10,000 ohms between the instrument cluster and ground? O3 CHECK CIRCUIT 1390 (DB) FOR A SHORT TO POWER Measure the voltage between the instrument cluster C220a-13, circuit 1390 (DB), harness side and ground. REPAIR the circuit. TEST the system for normal GO to O4. Is any voltage present? O4 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION

16 Page 16 of 30 O5 CHECK FOR CORRECT RCM OPERATION Disconnect all RCM connectors. Connect all RCM connectors and make sure they seat correctly. INSTALL a new instrument cluster. REFER to (IC) in this section. TEST the system for normal The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. TEST the system for normal INSTALL a new RCM. REFER to Section B. TEST the system for normal The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. TEST the system for normal Pinpoint Test P: The Check Fuel Cap Indicator Is Never On rmal Operation The PCM monitors the fuel tank evaporative system for significant leaks that occur following refueling of the vehicle. If a fuel tank pressure change greater than a minus 23.7 kpa (7 inhg) of vacuum within 30 seconds after refueling has occurred, or there is excessive purge (fuel vapor) flow greater than 454 g (0.06 lb) per minute, the PCM will set DTC P0457 and send a message to the instrument cluster over the CAN communication network, circuits 3125 (RD/YE) and 3126 (TN/YE), to turn on the CHECK FUEL CAP indicator. fuel tank evaporative system PCM PINPOINT TEST P: THE CHECK FUEL CAP INDICATOR IS NEVER ON P1 RETRIEVE AND RECORD DTCS FROM BOTH CONTINUOUS AND ON-DEMAND SELF-TESTS PCM Enter the following diagnostic mode on the scan tool: Continuous DTCs. Retrieve and document the continuous DTCs. Is DTC P0457 present? P2 CARRY OUT THE INSTRUMENT CLUSTER INDICATOR LAMP CONTROL ACTIVE COMMAND USING THE DIAGNOSTIC TOOL Enter the following diagnostic mode on the scan tool: Active Command. Select the instrument cluster indicator lamp control active command. Trigger the check cap indicator active command. Observe the CHECK FUEL CAP indicator. Is the CHECK FUEL CAP indicator illuminated? P3 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual to continue diagnosis of DTC P0457. GO to P2. REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual to continue diagnosis. GO to P3. INSTALL a new instrument cluster. REFER to (IC) in this section. TEST the system for normal The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. TEST the system for normal Pinpoint Test Q: The Anti-Lock Brake System (ABS) Warning Indicator Is Never On rmal Operation ABS data is transmitted to the instrument cluster through the CAN, circuits 3125 (RD/YE) and 3126 (TN/YE). ABS module PINPOINT TEST Q: THE ANTI-LOCK BRAKE SYSTEM (ABS) WARNING INDICATOR IS NEVER ON Q1 CARRY OUT THE INSTRUMENT CLUSTER INDICATOR LAMP CONTROL ACTIVE COMMAND USING THE DIAGNOSTIC TOOL Enter the following diagnostic mode on the scan tool: Active Command. Select the instrument cluster indicator lamp control active command. Trigger the ABS indicator active command. Observe the ABS warning indicator. Is the ABS warning indicator illuminated? REFER to Section to continue the diagnosis. GO to Q2.