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Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis >> Electrical >> Starter >> Starters >> Diagnostic System Check - Engine Electrical >> Power Mode Mismatch >> Test Description
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Test Description

The numbers below refer to the step numbers on the diagnostic table.

  1. - This step tests for battery voltage on the signal circuits that are not required.
  2. - This step tests for no battery voltage on the required signal circuits.
  3. - If any ignition switch parameters that should be inactive in the present ignition switch position are active, 2 ignition switch signal circuits may be shorted together.
  4. - This step eliminates open circuits as the cause of the malfunction.