TEST
ACTION
APPLICABILITY
3
NOTE: Raise the seat to the highest position to gain access to the connec-
tors. The HSM is located at the front of the seat and the Seat Heater
connectors are at the rear of the seat.
Turn the ignition off.
Disconnect the Heated Seat Module C2 harness connector.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Measure the resistance of the Driver Seat Heater B(+) Driver circuit to the Driver
Seat Heater Ground circuit in the HSM C2 connector.
Is the resistance below 1000.0 ohms?
All
Yes
→
Repair the Driver Seat Heater B(+) Driver circuit for a short to
the Driver Seat Heater Ground circuit.
Perform VERIFICATION TEST -MEMORY SYSTEM.
No
→
Go To
4
4
NOTE: Raise the seat to the highest position to gain access to the connec-
tors. The HSM is located at the front of the seat and the Seat Heater
connectors are at the rear of the seat.
Turn the ignition off.
Disconnect the Heated Seat Module C2 harness connector.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Measure the resistance of the Driver Seat Heater B(+) Driver circuit to ground.
Is the resistance below 5.0 ohms?
All
Yes
→
Repair the Driver Seat Heater B(+) Driver circuit for a short to
ground.
Perform VERIFICATION TEST -MEMORY SYSTEM.
No
→
Replace the Heated Seat Module.
Perform VERIFICATION TEST -MEMORY SYSTEM.
5
NOTE: Raise the seat to the highest position to gain access to the connec-
tors. The HSM is located at the front of the seat and the Seat Heater
connectors are at the rear of the seat.
Turn the ignition off.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Measure the resistance of the Driver Seat Heater B(+) Driver circuit in the Driver
Heated Seat Cushion connector (cushion side) to ground.
Is the resistance below 100.0 ohms?
All
Yes
→
Go To
6
No
→
Replace the Heated Seat Module.
Perform VERIFICATION TEST -MEMORY SYSTEM.
6
NOTE: Raise the seat to the highest position to gain access to the connec-
tors. The HSM is located at the front of the seat and the Seat Heater
connectors are at the rear of the seat.
Turn the ignition off.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Disconnect the Driver Heated Seat Back 2-way (black) connector.
Measure the resistance of the Driver Seat Heater B(+) Driver circuit in the Driver
Heated Seat Cushion connector (cushion side) to ground.
Is the resistance below 1000.0 ohms?
All
Yes
→
Replace the Driver Heated Seat Cushion.
Perform VERIFICATION TEST -MEMORY SYSTEM.
No
→
Replace the Driver Heated Seat Back.
Perform VERIFICATION TEST -MEMORY SYSTEM.
203
ELECTRICALLY HEATED SYSTEMS
DRIVER SEAT HEAT OUTPUT SHORT TO GND (LIMITED) —
Continued