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Home >> Hummer >> 2008 >> H3 Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 37 (Anti-Lock Brake System, Traction Control System & Stability Control System) >> Diagnostic Information and Procedures >> DTC C0110 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2008 Isuzu i-370, 2008 Isuzu i-290, 2008 GMC Canyon, and 2008 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
  1. With the ignition OFF, disconnect the main EBCM harness connector (C2) an the small 4-way EBCM harness connector (C1). At both EBCM harness connectors, test for 12 volts on the battery positive voltage circuits.
    • If the voltage is below 10 volts, repair open or short to ground on the battery positive voltage circuit.
  2. Connect one end of a test lamp to battery positive voltage. At the EBCM connector, touch the other end of the test lamp to each of the three ground circuits. The test lamp should illuminate.
    • If the test lamp does not illuminate when touched to each ground circuit, repair open in the suspected ground circuit.
  3. Remove the two small rubber caps that cover the ABS pump motor connections to the EBCM. Connect a test lamp between the two terminals located under the rubber plugs. Turn the ignition ON. Use the scan tool to command the ABS pump motor ON.
    • If the test lamp illuminates, replace the hydraulic brake booster.
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