Component Tests and General Diagnostics

INSPECTION







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




2. INSPECT SEAT HEATER INDICATOR LIGHT OPERATION
a. Connect the positive (+) lead from the battery to terminal 6 and the negative (-) lead to terminal 4.
b. Push the seat heater switch Right or Left side and check that the indicator light comes on.
If operation is not as specified, replace the switch and inspect the circuits connected to other parts.







3. INSPECT SEAT HEATER CUSHION CONTINUITY
Inspect the seat cushion between terminals, as shown.
If continuity is not as specified, replace the seat cushion part.








4. INSPECT SEAT BACK CONTINUITY
Inspect the seat heater assembly between terminals, as shown.
If the continuity is not as specified, replace the seat heater assembly.







5. INSPECT SEAT CUSHION AND SEAT BACK OPERATION
a. Heat the thermostat with a light.
b. Connect the seat cushion and the seat back connector.
c. Inspect the seat heater assembly continuity between terminals, as shown.
If the continuity is not as specified, replace the seat heater assembly.







6. INSPECT SEAT HEATER ASSEMBLY (SEAT BACK) OPERATION
a. Heat the thermostat with a light.
b. Connect the seat cushion and the seat back connector.
c. Inspect the seat heater assembly continuity between terminals, as shown.