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Home >> Cadillac >> 2012 >> Escalade EXT >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 893 (Anti-Lock Brake System, Traction Control System & Stability Control System) >> Diagnostic Information and Procedures >> DTC C0252 >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the yaw rate sensor/lateral accelerometer and the steering wheel position sensor connectors.
  2. Ignition ON, measure for 4.8-5.2 volts at SAS sensor 5-volt reference circuit or battery positive reference at the yaw rate sensor and ground.
    • If over 5.2 volts, test each 5-volt reference circuit for a short to voltage. If the circuits tests normal, replace the EBCM.
    • If the SAS sensor is under 4.8 volts, test each 5-volt reference circuit for short to ground. If the circuits tests normal, replace the EBCM.
    • If the SAS sensor over 5.2 volts, test each 5-volt reference circuit for a short to voltage. If the circuits tests normal, replace the EBCM.
    • If the yaw rate sensor is under battery positive voltage, test each 12-volt reference circuit for short to ground. If the circuits tests normal, replace the EBCM.
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