buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Oil Change Reminder Lamp > < Malfunction Indicator Lamp|Testing and Inspection
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‹› If the MIL does not illuminate, test the MIL control circuit for a short to voltage, or an open/high resistance. If the circuit tests normal, replace

the IPC/bulb.

4. If all circuits/connections test normal, replace the PCM. Ignition ON, verify that the IPC warning indicators are illuminated.

Repair Instructions

Perform the Diagnostic Repair Verification   (See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble
Code Tests and Associated Procedures/Verification Tests and Procedures) after completing the diagnostic procedure.

*

Instrument Cluster Replacement   (See: Instrument Panel, Gauges and Warning Indicators/Instrument Cluster / Carrier/Service and Repair)

*

Control Module References   (See: Testing and Inspection/Programming and Relearning) for PCM replacement, setup and programming

Oil Change Reminder Lamp > < Malfunction Indicator Lamp|Testing and Inspection