Diagnostic procedure

NO. 3 TEMPERATURE OF REAR SEAT WARMER CANNOT ADJUSTED - DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	DETERMINE MALFUNCTIONING SYSTEM Are the rear seat warmers on both sides not operating?	Yes	Replace the rear seat warmer control unit. (See REAR SEAT WARMER CONTROL UNIT REMOVAL/INSTALLATION .)
1		No	Go to the next step.
2*	VERIFY IF MALFUNCTION CAUSE IS OPEN CIRCUIT IN WIRING HARNESS OF REAR SEAT WARMER UNIT CIRCUIT Switch the ignition off (LOCK). Disconnect the rear seat warmer control unit connector. Inspect for continuity between the following terminals (wiring harness-side): Rear seat warmer control unit terminal C and E (Left-side) Rear seat warmer control unit terminal D and L (Right-side) Is there continuity?	Yes	Go to the next step.
2*		No	Replace the rear seat back pad or rear seat cushion pad. (See REAR SEAT BACK TRIM REMOVAL/INSTALLATION .) (See REAR SEAT CUSHION TRIM REMOVAL/INSTALLATION .)
3*	VERIFY IF MALFUNCTION CAUSE IS SHORT CIRCUIT IN WIRING HARNESS OF REAR SEAT WARMER UNIT CIRCUIT Inspect for continuity between the following terminals (wiring harness-side): Rear seat warmer control unit terminal C and body ground (Left-side) Rear seat warmer control unit terminal D and body ground (Right-side) Is there continuity?	Yes	Repair or replace for a short to ground in the wiring harness.
3*		No	Replace the rear seat back pad or rear seat cushion pad. (See REAR SEAT BACK TRIM REMOVAL/INSTALLATION .) (See REAR SEAT CUSHION TRIM REMOVAL/INSTALLATION .)