LEMON Manuals: Even more car manuals for everyone
Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 312 (Steering Wheel And Steering Column) >> Diagnostic Information and Procedures >> Heated Steering Wheel Indicator Malfunction >> Circuit/System Testing

Circuit/System Testing

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the heated steering wheel control module.
  2. Test for less than 10.0 ohms between the ground circuit terminal B X277 and ground.
    • If greater than the specified value, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify a test lamp illuminates between the ignition voltage circuit terminal A X277 and ground.
    • If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
  4. Install a 3A fused jumper wire between the indicator control circuit terminal 4 and B+. Verify the heated steering wheel indicator is illuminated.
    • If the indicator does not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the left steering wheel control switch.
  5. Verify that a test lamp does not illuminate between the indicator control circuit terminal 4 and ground.
    • If the test lamp is always ON, test the indicator control circuit for a short to voltage. If the circuit tests normal, replace the heated steering wheel control module.
  6. If all circuits test normal, replace the steering wheel heat control module.
scientia non olet · About LEMON Manuals