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Home >> Chevrolet >> 2006 >> HHR LS, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays, Gauges And Console >> Diagnostic Information and Procedures >> Driver Information Center (DIC) Switch(es) Inoperative >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the DIC switch assembly.
  2. Ignition OFF, test for less than 1.0 ohm of resistance between the ground circuit and ground.
    • If greater than 1.0 ohm, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify all of the scan tool DIC Switch parameters are Inactive.
    • If any are not Inactive, test the signal circuit for a short to ground. If the circuit tests normal, test the ignition voltage circuit of the IPC for an open/high resistance.
    • If all circuits test normal, replace the IPC.
  4. Ignition ON, install a 3-amp fused jumper wire between the signal circuit and ground. Verify all of the scan tool DIC Switch parameters are Active.
    • If any are not Active, test the signal circuit for an open/high resistance. If the circuit tests normal, test the ignition voltage circuit of the IPC for an open/high resistance. If the circuits test normal, replace the IPC.
    • If all are Active, replace the DIC switch assembly.
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