Test K: The Heated Seat Is Inoperative - Seat Does Heat But the Heated Seat Indicator Does Not Illuminate - Passenger

PINPOINT TEST K: THE HEATED SEAT IS INOPERATIVE - SEAT DOES HEAT BUT THE HEATED SEAT INDICATOR DOES NOT ILLUMINATE - PASSENGER

K1-K2:

K2-K4:

K4-K5:

Normal Operation
Upon receiving a signal from the electronic automatic temperature control (EATC) module, the heated seat module will decrease one setting (the sequence is HI, LO, OFF, HI, etc.). When a heated seat is set to HI, both LED indicators above the heated seat control button will illuminate. When a heated seat is set to LO, only the left LED indicator will illuminate. When a heated seat is set to OFF, neither LED will illuminate.

Possible Causes
An inoperative heated seat indicator can be caused by:
- wiring, terminals or connectors.
- a faulty heated seat module.
- a faulty EATC module.