FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Both Heated Seats Inoperative

BOTH HEATED SEATS INOPERATIVE

Both Heated Seats Inoperative:




POSSIBLE CAUSES
- Fused B(+) circuit open
- Fused ignition switch output circuit open
- Heated seat module

DIAGNOSTIC TEST

1. MEASURE HEATED SEAT MODULE FUSED B(+) CIRCUIT VOLTAGE





NOTE: Inspect Fuse 1 and Fuse 24 located in the Underhood Accessory Fuse Block. If either fuse is open, repair the cause of the open fuse before continuing.

Turn the ignition off.
Disconnect the Heated Seat Module harness connector.

NOTE: Check connector - Clean/repair as necessary.

Measure the voltage of the Fused B(+) circuit at the Heated Seat Module harness connector.

Q: Is the voltage above 10 volts?

YES: Go to 2
NO: Repair the Heated Seat Module Fused B(+) circuit for an open. Perform BODY VERIFICATION TEST. Body Verification Test

2. MEASURE HEATED SEAT MODULE FUSED IGNITION SWITCH OUTPUT CIRCUIT VOLTAGE




Turn the ignition on.
Measure the voltage of the Fused Ignition Switch Output circuit at the Heated Seat Module harness connector.

Q: Is the voltage above 10 volts?

YES: Replace the Heated Seat Module. Perform BODY VERIFICATION TEST. Body Verification Test
NO: Repair the Heated Seat Module Fused Ignition Switch Output circuit for an open. Perform BODY VERIFICATION TEST. Body Verification Test