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Home >> GMC >> 2013 >> Yukon Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1581 (Antilock Brake System - Non-Hybrid Less Than 3900 Kg (8600 Lb) GVW With TCS & VSES) >> Diagnostic Information and Procedures >> DTC C0710 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: If only DTC C0710 is set refer to Only DTC C0710 Set, if both DTC C0710 and C1100 are set, refer to Both DTC C0710 and C1100 Set.

Only DTC C0710 Set

  1. Ignition OFF, disconnect the harness connector at the steering angle sensor.
  2. Ignition OFF, scan tool disconnected, all vehicle systems OFF, this may take up to 2 minutes, test for less than 20 Ω between the low reference circuit terminal 2 and ground.
    • If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the EBCM.
  3. Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminal 1 and ground.
    • If less than the specified range, test the 5 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the EBCM.
    • If greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit tests normal, replace the EBCM.
  4. Test for 4.8-5.2 V between the 5 V reference circuit terminal 1 and the signal circuit terminal 6.
    • If not within the specified range, test the signal circuit for short to voltage or an open/high resistance. If the circuit tests normal, replace the EBCM.
  5. Ignition OFF, disconnect the harness connector at the EBCM.
  6. Test for infinite resistance between the signal circuit terminal 4 and ground.
    • If not the specified value, test the signal circuit for a short to ground.
  7. Connect the harness connector at the EBCM.
    8. NOTE: When measuring voltage, the voltage values are based on a battery charge of 12.5 V and the steering wheel is in the center position.
  8. Ignition ON, at the steering angle sensor connector harness, test for 6.8-11 V between the signal circuit terminals listed below and ground.
    • Phase A terminal 3
    • Phase B terminal 4
    • Phase C terminal 5
    • If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the EBCM.
    • If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the EBCM.
  9. If the circuits test normal, replace the steering angle sensor.

Both DTC C0710 and C1100 Set

  1. Ignition OFF, disconnect the harness connector at the brake booster vacuum sensor and the steering angle sensor.
  2. Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminals listed below and ground.
    • Terminal 3 at the brake booster vacuum sensor
    • Terminal 1 at the steering angle sensor
    • If less than the specified range, test both 5 V reference circuits for a short to ground. If the circuits test normal, replace the EBCM.
    • If greater than the specified range, test both 5 V reference circuits for a short to voltage. If the circuits test normal, replace the EBCM.
  3. If all circuits test normal, test or replace the brake booster sensor or steering angle sensor as required.
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