Diagnostic Procedure

STEP	INSPECTION		ACTION
1	DETERMINE IF MALFUNCTION CAUSE IS M POSITION SWITCH SIGNAL OR INSTRUMENT CLUSTER Inspect the value at the following TCM PID using the M-MDS (IDS). (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .) MNL SW Is the PID value normal?	Yes	Go to Step 3.
1		No	Go to the next step.
2	VERIFY IF MALFUNCTION CAUSE IS M POSITION SWITCH OR M POSITION SWITCH RELATED WIRING HARNESS Inspect the M position switch. (See M POSITION SWITCH INSPECTION .) Is the M position switch normal?	Yes	Inspect for open circuit in wiring harness between the following: Selector lever component terminal A-TCM terminal K Selector lever component terminal H-Body GND Repair or replace any malfunctioning parts according to the inspection result.
2		No	Replace the M position switch. (See M POSITION SWITCH REMOVAL/INSTALLATION .)
3	INSPECT INSTRUMENT CLUSTER FOR MALFUNCTION Inspect the instrument cluster. (See INSTRUMENT CLUSTER INSPECTION .) Is the instrument cluster normal?	Yes	Go to the next step.
3		No	Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .)
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 Bulletins and/or On-line Repair 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 .)