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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 92 (Engine Controls - Self-Diagnostics - 6.6L Diesel) >> System Tests >> Malfunction Indicator Lamp Inoperative >> Test Description

Test Description

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers n the diagnostic procedures.

  1. 3

    This step determines if the condition is with the MIL control circuit or the ECM.
  2. 4

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