Test Description

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 Pontiac Grand Prix, 2002 Pontiac Bonneville, 2002 Chevrolet Monte Carlo, 2002 Chevrolet Impala, and 2002 Buick Regal. 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 procedures.

1

The Diagnostic System Check-Engine Controls prompts you to complete some basic checks and store the Freeze Frame/Failure Records on the scan tool.

2

Listen for a click when the relay operates. Command both the on and off states. Repeat the commands as necessary.

3

This step tests for voltage at the feed.

4

This step verifies that the control module is providing a ground.

5

This step tests if ground is constantly being applied.

12

The control module utilizes Electrically Erasable Programmable Read Only Memory (EEPROM). When the control module is replaced, the new control module must be programmed.