Component Tests and General Diagnostics

INSPECTION







1. INSPECT SEAT HEATER SWITCH CONTINUITY
If continuity is not as specified, replace the switch or bulb.




2. INSPECT REAR SEAT HEATER SWITCH VOLTAGE (): Right side
a. Connect the positive (+) lead from the battery to terminal 2 (1) and negative (-) lead terminal 8.
b. Push the switch and check the voltage between terminal 5 (7) and battery (-) terminal.
If operation is not as specified, replace the switch.







3. INSPECT SEAT HEATER SWITCH CIRCUIT
Disconnect the switch connector and inspect the connector on the wire harness side,as shown.







4. Seat Cushion:
INSPECT SEAT HEATER CONTINUITY
a. Heat the thermostat with a light.
b. Inspect the seat heater continuity between terminals.
If continuity is not as specified, replace the seat cushion pad.







5. Seat Back:
INSPECT SEAT HEATER CONTINUITY
Inspect the seat heater continuity between terminals, as shown.
If continuity is not as specified, replace the seat back pad.