Diagnostic Procedure

WARNING: This page is about a different variant/trim than selected.

STEP	INSPECTION		ACTION
1	INSPECT TCM FOR POOR GROUND Disconnect the TCM. Is the resistance between the TCM ground terminal A9 and the body ground less than 5.0 ohms?	Yes	Go to the next step.
1		No	Repair open ground circuit.
2	INSPECT TCC SOLENOID FOR MALFUNCTION Inspect the TCC solenoid. (See TORQUE CONVERTER CLUTCH (TCC) CONTROL SOLENOID INSPECTION .) Is the TCC solenoid normal?	Yes	Go to the next step.
2		No	Inspect the coupler component. If normal, replace the control valve body. (See CONTROL VALVE BODY REMOVAL/INSTALLATION .)
3	VERIFY IF MALFUNCTION CAUSE IS TORQUE CONVERTER OR OTHER Perform the stall test. (See MECHANICAL SYSTEM TEST .)	Yes	Go to the next step.
3		No	Replace the torque converter. (See TORQUE CONVERTER REMOVAL/INSTALLATION .)
4	VERIFY IF MALFUNCTION CAUSE IS TRANSAXLE (INCLUDING CONTROL VALVE BODY) OR ATF FLUID LEVEL Inspect the ATF condition. Are a metal specks found?	Yes	If large amount of metal specks are found, replace the transaxle. (See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION .) If a large amount of metal specks are not found, replace the control valve body. (See CONTROL VALVE BODY REMOVAL/INSTALLATION .)
4		No	Perform the "AUTOMATIC TRANSAXLE FLUID (ATF) LEVEL ADJUSTMENT" procedure. (See AUTOMATIC TRANSAXLE FLUID (ATF) LEVEL ADJUSTMENT .)
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.