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Home >> Chevrolet >> 2011 >> Caprice >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Diagnostic Information and Procedures >> Cruise Control Inoperative/Malfunctioning >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the X3 harness connector at the BCM.
  2. Verify that a test lamp illuminates between the B+ circuit terminal 3 and ground.
    • If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  3. Ignition OFF, connect the X3 harness connector at the BCM.
  4. Disconnect the harness connector at the turn signal/multifunction switch.
  5. Ignition ON, test for B+ between the B+ circuit terminal 6 and ground.
    • If less than the specified value, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  6. Ignition ON, test for B+ between the B+ circuit terminal 6 and the signal circuit terminal 5.
    • If less than the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
  7. Ignition ON, verify that a test lamp does not illuminate between B+ and the signal circuit terminal 5.
    • If the test lamp illuminates, test the signal circuit for a short to ground. If the circuit test normal, replace the BCM.
  8. If all circuits test normal, test or replace the turn signal/multifunction switch.
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