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Home >> Chevrolet >> 2006 >> SSR Automatic >> Repair and Diagnosis (Single Page) >> Body & Frame >> Ignition Switch/Steering Lock >> Steering Wheel & Steering Column >> Diagnostic Information and Procedures >> Steering Wheel Controls Inoperative >> Circuit/System Testing

Circuit/System Testing

Note: It is Recommend that Component Testing is performed before Circuit Testing when diagnosing steering wheel controls.

CAUTION: Refer to SIR Caution .
  1. Ignition OFF, disconnect the harness connector at the audio steering wheel control switch.
  2. Ignition ON, test for 12 volts between the supply voltage circuit and ground at the right switch harness connector.
    • If less than 10 volts, test the supply voltage circuit for short to ground or open/high resistance. If circuit test normal, replace BCM.
  3. Install a 3-amp fused jumper wire between the supply voltage circuit and the signal circuit at the right harness connector. Verify DTC B2815 sets.
    • If DTC B2815 does not set, test the signal circuit for a short to ground or open/high resistance. If circuit test normal, replace BCM.
  4. If circuits test normal, test or replace switch.
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