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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 81 (Cruise Control System) >> Diagnostic Information and Procedures >> Cruise Control Indicator Malfunction (Switch Indicator Malfunction) >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, with a scan tool observe the Cruise On/Off Switch parameter. Verify the parameter changes each time the switch is actuated
    • If the parameter reads ON at all times replace the cruise control switch.
  2. Ignition OFF, remove the inflatable restraint steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement .
  3. Disconnect the harness connector at the cruise control switch assembly.
  4. Ignition ON, verify a test lamp illuminates between the cruise control harness connector terminals 1 and 8.
    • If the test lamp does not illuminate, test the ground circuit terminal 8 for an open or high resistance.
  5. If all circuits test normal replace the cruise control switch.
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