LEMON Manuals: Even more car manuals for everyone
Home >> Hummer >> 2007 >> H2 4D Utility Pickup >> Repair and Diagnosis >> External Pages >> Different car >> Section 1719 (Antilock Brake System - Non-Hybrid Greater Than/Equal To 3900 Kg (8600 Lb) GVW With TCS & VES) >> Diagnostic Information and Procedures >> DTC C0035 or C0040 (Without JL4) >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the EBCM.
  2. Ignition ON, test for less than 1 V between the 12 V reference circuit terminal of the appropriate sensor listed below and ground.
    • Left front sensor circuit terminal 15
    • Right front sensor circuit terminal 26
    • If greater than the specified range, test the 12 V reference circuit for a short to voltage.
  3. Test for less than 1 V between the signal circuit terminal of the appropriate sensor listed below and ground.
    • Left front sensor circuit terminal 16
    • Right front sensor circuit terminal 27
    • If greater than the specified range, test the signal circuit for a short to voltage.
  4. Ignition OFF, test for infinite resistance between the 12 V reference circuit terminal of the appropriate sensor listed below and ground.
    • Left front sensor circuit terminal 15
    • Right front sensor circuit terminal 26
    • If less than the specified value, test the 12 V reference circuit for a short to ground.
  5. Test for infinite resistance between the following signal circuit terminal of the appropriate sensor listed below and ground.
    • Left front sensor circuit terminal 16
    • Right front sensor circuit terminal 27
    • If less than the specified value, test the signal circuit for a short to ground.
  6. Ignition OFF, disconnect the harness connector at the appropriate wheel speed sensor.
  7. Ignition OFF, test for less than 2 Ω between the appropriate 12 V reference circuit terminals listed below.
    • Left front sensor circuit terminal 15 at the EBCM harness connector, and terminal B at the wheel speed sensor harness connector
    • Right front sensor circuit terminal 26 at the EBCM harness connector, and terminal B at the wheel speed sensor harness connector
    • If greater than the specified range, test the 12 V reference circuit for an open or high resistance.
  8. Test for less than 2 Ω between the appropriate signal circuit terminals listed below.
    • Left front sensor circuit terminal 16 at the EBCM harness connector, and terminal A at the wheel speed sensor harness connector
    • Right front sensor circuit terminal 27 at the EBCM harness connector, and terminal A at the wheel speed sensor harness connector
    • If greater than the specified range, test the signal circuit for an open or high resistance.
  9. If all circuits test normal, replace the appropriate wheel speed sensor. If the DTC resets replace the EBCM.
scientia non olet · About LEMON Manuals