NO.27 GEAR POSITION INDICATOR LIGHT DOES NOT ILLUMINATE IN D OR M RANGE [AW6AX-EL]


id0503j6808800

27
Gear position indicator light does not illuminate in D or M range
DESCRIPTION
•  Gear position indicator light in instrument cluster does not illuminate in D or M range and ignition switch at ON.
POSSIBLE CAUSE
•  M range switch, TR switch, instrument cluster, or related wiring harness malfunction
Note
•  Before following the troubleshooting steps, make sure that the Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [AW6AX-EL].)

Diagnostic procedure

STEP

INSPECTION

ACTION

1
•  With the ignition switch at ON,
When selector lever is moved, does selector illumination indicate synchronized position to lever location?
Yes
Go to the next step.
No
Inspect TCM PID TR using the M-MDS.
•  If the PID TR is normal, go to Step 3.
•  If the PID TR is not normal, inspect the TR switch.
2
•  Inspect the voltage at TCM terminal A7 (M range switch).
•  Is voltage normal?
Yes
Go to the next step.
No
Repair or replace any malfunctioning part.
3
•  Inspect the instrument cluster.
•  Is instrument cluster normal?
Yes
Go to the next step.
No
Repair or replace any malfunctioning part.
4
•  Disconnect the TCM and instrument cluster connector.
•  Turn the ignition switch off.
•  Check continuity between the following circuits:
―  TCM terminal A6 and body ground
―  TCM terminal A14 and body ground
―  Instrument cluster terminal 1W and body ground
―  Instrument cluster terminal 1X and body ground
•  Is there continuity?
Yes
Repair or replace harness for short to ground, then go to the next step.
No
Go to the next step.
5
•  Disconnect the TCM and instrument cluster connector.
•  Turn the ignition switch off.
•  Check continuity between the following circuits:
―  TCM terminal A6 and instrument cluster terminal 1W
―  TCM terminal A14 and instrument cluster terminal 1X
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace harness for open circuit, then go to the next step.
6
•  Verify test results.
―  If normal, return to the diagnostic index to service any additional symptoms.
―  If the malfunction remains, inspect the related Service Information and perform repair or diagnosis.
•  If the vehicle is repaired, troubleshooting completed.
•  If the vehicle is not repaired or additional diagnostic information is not available, replace the TCM.