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Home >> Pontiac >> 2009 >> G8 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 49 (Configurable Customer Control System) >> Diagnostic Information and Procedures >> Steering Wheel Controls Inoperative >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2008 Pontiac G8. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the steering wheel switch assembly.
  2. Test for less than 5 ohms between the low reference circuit terminal 5 and ground.
    • If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the IPC.
  3. Ignition ON, test for 4.8-5.2 volts between the signal circuit terminal 6 and ground.
    • If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the IPC.
    • If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the IPC.
  4. Test for 4.8-5.2 volts between the signal circuit terminals listed below and ground.
    • Right Steering Wheel Scroll 2 terminal 1.
    • Right Steering Wheel Scroll 1 terminal 2.
    • Left Steering Wheel Scroll 1 terminal 3.
    • Left Steering Wheel Scroll 2 terminal 4.
    • If less than the specified range, test the appropriate signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the IPC.
    • If greater than the specified range, test the appropriate signal circuit for a short to voltage. If the circuit tests normal, replace the IPC.
  5. If all circuits test normal, replace the steering wheel control switch assembly.
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