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Test M: The Passenger Heated Seat Is Inoperative - Does Not Operate In High

PINPOINT TEST M: THE PASSENGER HEATED SEAT IS INOPERATIVE - DOES NOT OPERATE IN HIGH


M1:






M1-M3:






M3 Continued:






Normal Operation
The driver heated seat module receives battery voltage feed on circuit 1048 (LB/WH) and ignition voltage feed on circuit 1040 (RD/BK), and is supplied ground on circuit 676 (PK/OG). When the heated seat control switch is pressed with the ignition switch in RUN or START, a ground signal is sent to the heated seat module on circuit 581 (RD) to command the system ON or OFF in HI heat mode.

Possible Causes
A passenger heated seat that does not operate in HI can be caused by:
- faulty wiring, terminals or connectors.
- a faulty heated seat switch.
- a faulty heated seat module.