NO.27 GEAR POSITION INDICATOR LIGHT DOES NOT ILLUMINATE IN M RANGE [FS5A-EL]


id050308803200

27
Gear position indicator light does not illuminate in M range
DESCRIPTION
•  Gear position indicator light in instrument cluster does not illuminate in M range with the ignition at ON.
POSSIBLE CAUSE
•  M range switch (built-in selector lever component), 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 ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [FS5A-EL].) (See BASIC INSPECTION [FS5A-EL].)
•  If the ATF temperature reaches 130 °C {266 °F} or more while driving in manual shift mode, the gear position indicator light turns off and the TCM switches to automatic shift mode to reduce load on the ATX. After the ATF temperature decreases to 120 °C {248 °F} or less and a period of time has passed, the gear position indicator light turns back on and driving in manual shift mode is restored.

Diagnostic procedure

STEP

INSPECTION

ACTION

1
Inspect the MNL SW PID value using the M-MDS.
Is the PID value normal?
Yes
Go to Step 3.
No
Go to the next step.
2
Inspect the M range switch.
Is the M range switch normal?
Yes
Inspect the wiring harness between TCM terminal K and selector lever component terminal A.
Repair or replace the any malfunctioning parts according to the inspection results.
No
Replace the M range switch.
3
Retrieve the instrument cluster DTC using the M-MDS.
Are any DTCs present?
Yes
Go to the applicable DTC inspection.
No
Replace the instrument cluster.
4
•  Verify the 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 is completed.
•  If the vehicle is not repaired or additional diagnostic information is not available, replace the TCM. (See TCM REMOVAL/INSTALLATION [FS5A-EL].)