Heated Seat Inoperative
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Heated Seat Inoperative
| Step | Action | Values | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Heated Seats Schematics | ||||
| 1 | Did you review the Heated Seats Description and Operation and perform the necessary inspections? | - | Go to Step 2 | Go to Symptoms - Seats |
| 2 | Operate the heated seat system. Does the system operate normally? |
- | Go to TESTING FOR INTERMITTENT AND POOR CONNECTIONS | Go to Step 3 |
| 3 |
|
10-14 V | Go to Step 4 | Go to Step 6 |
| 4 | Connect a test lamp from the battery voltage supply circuit 2340 terminal in the body harness connector half to a good ground. Does the test lamp illuminate? |
- | Go to Step 5 | Go to Step 13 |
| 5 | Connect a test lamp from battery voltage to the ground circuit terminal in the body harness connector half. Does the test lamp illuminate? |
- | Go to Step 9 | Go to Step 14 |
| 6 |
|
- | Go to Step 7 | Go to Step 15 |
| 7 | Connect a test lamp from battery voltage to the ground circuit terminal in the heated seat switch harness connector. Does the test lamp illuminate? |
- | Go to Step 8 | Go to Step 16 |
| 8 | Test the heated seat switch signal circuit for a open or short to ground. Refer to CIRCUIT TESTING
and WIRING REPAIRS
. Did you find and correct the condition? |
- | Go to Step 20 | Go to Step 11 |
| 9 |
|
- | Go to Step 20 | Go to Step 10 |
| 10 |
|
0.5-2.0 ohms | Go to Step 12 | Go to Step 17 |
| 11 | Inspect for poor connections at the harness connector of the heated seat switch. Refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS
and to CONNECTOR REPAIRS
. Did you find and correct the condition? |
- | Go to Step 20 | Go to Step 18 |
| 12 | Inspect for poor connections at the heated seat harness connectors. Refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS
and to CONNECTOR REPAIRS
. Did you find and correct the condition? |
- | Go to Step 20 | Go to Step 19 |
| 13 | Repair the heated seat battery voltage supply circuit for an open or short to ground. Refer to WIRING REPAIRS
. Did you complete the repair? |
- | Go to Step 20 | - |
| 14 | Repair the heated seat ground circuit for an open or high resistance. Refer to WIRING REPAIRS
. Did you complete the repair? |
- | Go to Step 20 | - |
| 15 | Repair the heated seat switch ignition voltage supply circuit for an open or short to ground. Refer to WIRING REPAIRS
. Did you complete the repair? |
- | Go to Step 20 | - |
| 16 | Repair the heated seat switch ground circuit for an open or high resistance. Refer to WIRING REPAIRS
. Did you complete the repair? |
- | Go to Step 20 | - |
| 17 | Replace the seat back heater element. Refer to Seat Back Heater Element Replacement - Front . Did you complete the repair? |
- | Go to Step 20 | - |
| 18 | Replace the heated seat switch. Refer to Heated Seat Switch Replacement - Front . Did you complete the repair? |
- | Go to Step 20 | - |
| 19 | Replace the seat cushion heater element assembly. Refer to and Seat Cushion Heater Element Replacement - Front . Did you complete the repair? |
- | Go to Step 20 | - |
| 20 | Operate the system in order to verify the repair. Did you correct the condition? |
- | System OK | Go to Step 2 |