For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
DEFINITION: Both driver and passenger heated seats are inoperative.
1 | Did you review the system operation and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms - Seats
2 | Verify the fault is present. Does the system operate normally? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3
3 | Test the battery positive voltage to the heated seat modules for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? |  | Go to Step 5 | Go to Step 4
4 | Test the battery positive voltage to the heated seat switches for a short to ground or an open. If you repair a short to ground, replace the HVAC/DIC/DRL HEATED SEAT fuse. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? |  | Go to Step 5 |
5 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3