NO.28 GEAR POSITION INDICATOR LIGHT ILLUMINATE IN P, R OR N POSITION [AY6A-EL, AY6AX-EL]

id0503k3333900

28

Gear position indicator light illuminate in P, R or N position

DESCRIPTION

•  Gear position indicator light in instrument cluster illuminates in P, R or N position and ignition switch at ON.

POSSIBLE CAUSE

•  M position switch (built-in selector lever component), instrument cluster, or related wiring harness malfunction

•  Multiplex communication system malfunction (Shift position signal is incorrect.)

―  Between TCM and instrument cluster

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 [AY6A-EL, AY6AX-EL].)

Diagnostic procedure

STEP	INSPECTION		ACTION
1	• Retrieve any instrument cluster DTCs using the M-MDS. (See DTC INSPECTION [INSTRUMENT CLUSTER].) • Are there any CAN communication DTCs displayed?	Yes	Go to appropriate the DTC inspection. (See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM (L.H.D.)].) (See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM (R.H.D.)].)
1		No	Go to the next step.
2	• Inspect the TCM PID MNL SW value using the M-MDS. (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION [AY6A-EL, AY6AX-EL].) • Is the PID value normal?	Yes	Go to Step 4.
2		No	Go to the next step.
3	• Inspect the M position switch. (See SELECTOR LEVER COMPONENT INSPECTION.) • Is the M position switch normal?	Yes	Inspect for open circuit in wiring harness between TCM terminal A7 and selector lever component terminal C. Repair or replace any malfunctioning part.
3		No	Replace the M position switch. (See SELECTOR LEVER COMPONENT REMOVAL/INSTALLATION.)
4	• Inspect the instrument cluster. (See INSTRUMENT CLUSTER INSPECTION.) • Is instrument cluster normal?	Yes	Go to the next step.
4		No	Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
5	• Verify test results. ― If normal, return to the diagnostic index to service any additional symptoms. ― If malfunction remains, inspect the related Service Bulletins and/or On-line Repair 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.

28	Gear position indicator light illuminate in P, R or N position
DESCRIPTION	• Gear position indicator light in instrument cluster illuminates in P, R or N position and ignition switch at ON.
POSSIBLE CAUSE	• M position switch (built-in selector lever component), instrument cluster, or related wiring harness malfunction • Multiplex communication system malfunction (Shift position signal is incorrect.) ― Between TCM and instrument cluster 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 [AY6A-EL, AY6AX-EL].)