Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Buick >> 2000 >> Regal LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0650: Malfunction Indicator Light Control Circuit >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

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

  1. 5

    This step tests for a short to ground in the MIL control circuit. With the Powertrain Control Module (PCM) disconnected and the ignition ON, the MIL should be OFF.

  2. 6

    This step tests for a short to voltage on the MIL control circuit. With the fuel removed, there should be no voltage on the MIL control circuit.

scientia non olet · About Mike's Workshop Manuals