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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 242 (Cruise Control System) >> Diagnostic Information and Procedures >> DTC P0572 or P0573 >> Component Testing

Component Testing

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  1. Ignition OFF, disconnect the harness connector at the stop lamp switch.
  2. With the brake pedal released, test for infinite resistance between terminal A and terminal B at the stop lamp switch.
    • If not the specified value, replace the stop lamp switch.
  3. With the brake pedal released, test for less than 1.0 ohm between terminal C and terminal D at the stop lamp switch.
    • If not the specified value, replace the stop lamp switch.
  4. With the brake pedal applied, test for less than 1.0 ohm between terminal A and terminal B at the stop lamp switch.
    • If not the specified value, replace the stop lamp switch.
  5. With the brake pedal applied, test for infinite resistance between terminal C and terminal D at the stop lamp switch.
    • If not the specified value, replace the stop lamp switch.