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Home >> Isuzu >> 2007 >> Ascender RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 294 (Anti-Lock Brake System, Traction Control System & Stability Control System) >> Diagnostic Information & Procedures >> DTC C0186 >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2008 Isuzu Ascender, 2008 GMC Envoy, and 2008 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. If DTC C0292 is set, diagnose that DTC first.
  2. Ignition OFF, disconnect the yaw and lateral acceleration sensor connector.
  3. Ignition OFF, test for less than 1 ohm of resistance between the low reference circuit terminal 6 and ground.
    • If greater than 1 ohm, test the low reference circuit terminal 6 and the EBCM ground circuit terminal 16 for a short to voltage or an open/high resistance. If the circuits test normal, replace the EBCM.
  4. Test the lateral accelerometer signal circuit terminal 2, the 5 volt reference circuit terminal 1, and the low reference circuit terminal 6 for an open/high resistance or a short to voltage or ground.
    • If all circuits test normal, replace the yaw and lateral acceleration sensor, and clear the yaw rate sensor offset value in the EBCM.
    • If the DTC sets again after replacing the yaw and lateral acceleration sensor, replace the EBCM.
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