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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 123 (Engine Controls - Self-Diagnostics - 4.0L) >> System Tests >> Mil Inoperative >> Test Description

Test Description

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers in the diagnostic test procedure.

  1. 3

    This step determines if condition is with the MIL control circuit or PCM.

  2. 4

    This step determines if a voltage is constantly being applied to the control circuit.

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