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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 313 (Battery, Charging System And Starting System) >> Diagnostic Information and Procedures >> Starter Solenoid Clicks, Engine Does Not Crank >> Circuit/System Testing

Circuit/System Testing

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  1. Verify that the battery is sufficiently charged and that the battery cables are clean and tight. Refer to Charging System Test .
  2. Using a DMM, measure voltage between the positive battery terminal and X2 terminal B at the solenoid as the ignition switch is turned to the START position. Voltage should be less than 0.5 volt.
    • If greater than the specified value, replace the positive battery cable.
  3. Using a DMM, measure voltage between the negative battery terminal and the starter motor case as the ignition switch is turned to the START position. Voltage should be less than 0.5 volt.
    • If greater than the specified value, replace the negative battery cable.
  4. Remove the drive belts. Refer to Drive Belt Replacement - Accessory , and Air Conditioning Compressor Belt Replacement (V8) .
  5. Attempt to start the engine, with the drive belts removed.
    • If the engine cranks, inspect the engine accessories and belt drive system for mechanical binding.
  6. Attempt to rotate the crankshaft using a breaker bar, or other suitable tool. Verify that the engine is not seized.
  7. If all circuits test normal, replace the starter motor.
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