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Circuit/System Testing

WARNING: This page is about a different car, the 2009 Pontiac Torrent and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector of the yaw rate sensor.
  2. Ignition ON, with a scan tool attempt to retrieve data from the steering wheel angle sensor in Chassis/Electronic Brake Control Module. Data should be available.
    • If data is not available, test the serial data circuits for a short to ground or a short to voltage. If the circuits test normal, replace the steering wheel angle sensor.
  3. Replace the yaw rate sensor.
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