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Home >> Cadillac >> 2008 >> Escalade AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 314 (Antilock Brake System - Non-Hybrid Less Than 3900 Kg (8600 Lb) GVW) >> Diagnostic Information and Procedures >> DTC C0186, C0196, or C0287 >> Circuit/System Testing

Circuit/System Testing

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  1. Ignition ON.
  2. Verify that DTC U1826, C0292 or C0710 is not set.
    • If none of the DTC are set 
  3. Verify that DTC C0287 4B is not set.
    • If DTC C0287 4B is not set 
  4. Inspect the yaw and lateral accelerometer sensor for correct installation.
    • If loose or incorrect installation 

      Correct the installation or replace the component.

    • If correct installation 
  5. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the yaw and lateral accelerometer sensor. It may take up to 2 minutes for all vehicle systems to power down.
  6. Test for less than 5 Ω between the ground circuit terminal 1 and ground.
    • If 5 Ω or greater 
    1. Ignition OFF.
    2. Test for less than 2 Ω in the ground circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit
      • If less than 2 Ω, repair the open/high resistance in the ground connection.
    • If less than 5 Ω 
  7. Ignition ON.
  8. Verify a test lamp illuminates between the 12 V reference circuit terminal 4 and ground.
    • If the test lamp does not illuminate 
    1. Ignition OFF, disconnect the harness connector at the electronic brake control module.
    2. Test for infinite resistance between the 12 V reference circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance.
    3. Test for less than 2 Ω in the 12 V reference circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the electronic brake control module.
    • If the test lamp illuminates 
  9. Replace the yaw and lateral accelerometer sensor.
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