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Circuit/System Testing

WARNING: This page is about a different car, the 2007 Pontiac Torrent and 2007 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Refer to SIR Caution .

Disable the inflatable restraint steering wheel module when performing this diagnostic. Refer to SIR Disabling and Enabling .

  1. Ignition OFF, cruise control switch OFF, disconnect the harness connector C3 at the BCM.
  2. Ignition ON, verify that a test lamp does not illuminate between the cruise control indicator dimming signal circuit and ground.
    • If the test lamp illuminates, test the cruise control indicator dimming signal circuit for a short to voltage. If the circuit tests normal, replace the steering wheel controls switch assembly-left.
  3. If the circuits test normal, replace the BCM.
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