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Home >> Chevrolet >> 2010 >> Traverse LT, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 479 (Seat Heating System And Seat Cooling System) >> Diagnostic Information and Procedures >> Heated Seat Inoperative (With Memory A45) >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.

Seat Heating Switch Malfunction

  1. Ignition OFF, disconnect the harness connector at the appropriate S32 Seat Heating Switch.
  2. Test for less than 10 Ω between the ground circuit terminal 7 and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify the scan tool Seat Heat Mode Sw. parameter is Inactive.
    • If not the specified value, test the signal circuit terminal 4 for a short to ground. If the circuit tests normal, replace the appropriate driver or passenger S84 Door Switch Panel Control Module.
  4. Verify the scan tool Seat Back Heat Mode Sw. parameter is Inactive.
    • If not the specified value, test the signal circuit terminal 5 for a short to ground. If the circuit tests normal, replace the appropriate driver or passenger S84 Door Switch Panel Control Module.
  5. Install a 3 A fused jumper wire between the signal circuit terminal 4 and ground. Verify the scan tool Seat Heat Mode Sw. parameter is Active.
    • If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the appropriate driver or passenger S84 Door Switch Panel Control Module.
  6. Install a 3 A fused jumper wire between the signal circuit terminal 5 and ground. Verify the scan tool Seat Back Heat Mode Sw. parameter is Active.
    • If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the appropriate driver or passenger S84 Door Switch Panel Control Module.
  7. If all circuits test normal, test or replace the S32 Seat Heating Switch.

Seat Heating Switch Indicator Malfunction

  1. Ignition OFF, disconnect the harness connector at the appropriate S32 Seat Heating Switch.
  2. Ignition ON, connect a test lamp between each control circuit terminal listed below and ground, one at a time. Command the Heated Seat Indicator ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.
    • Back and cushion heat indicator terminal 1
    • Low heat indicator terminal 6
    • Medium heat indicator terminal 8
    • Back only heat indicator terminal 9
    • High heat indicator terminal 10
    • If the test lamp is always ON, test the appropriate control circuit for a short to voltage. If the circuit tests normal, replace the S84 Door Switch Panel Control Module.
    • If the test lamp is always OFF, test the appropriate control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the S84 Door Switch Panel Control Module.
  3. If all circuits test normal, test or replace the S32 Seat Heating Switch.
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