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Home >> GMC >> 2007 >> Acadia SLE, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 629 (Cruise Control System) >> Diagnostic Information and Procedures >> Cruise Control Switch Indicator Inoperative >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2008 Saturn Outlook, 2008 GMC Acadia, and 2008 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: Refer to DTC B3794  before performing this diagnostic, if this code is set as current or history.
  1. Ignition OFF, disconnect the harness connector X3 at the BCM.
  2. Connect a fused jumper between the low reference terminal 22 and ground.
  3. Ignition ON, cruise control switch ON, verify that the steering wheel control switch-left LED is illuminated.
    • If the LED does not illuminate, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the steering wheel controls switch-left.
  4. If all circuits test normal, replace the BCM.
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