GM Service Manual Online
For 1990-2009 cars only

Before removing any unit in the cranking circuit for repair, refer to Starting and Charging Schematics . Perform the diagnostic procedures and also check the following items.

    • Battery: To determine the condition of the battery, refer to Battery Common Causes of Malfunction .
    • Wiring: Inspect for wiring damage. Inspect the connections to the starter motor, the starter solenoid, the ignition switch, the battery, and all related ground points.
    • Starter Solenoid and Ignition Switch: Inspect these components to determine their serviceability.
    • Starter Motor: If the battery, wiring and switches are in satisfactory condition and the engine is functioning properly, remove the starter motor and perform the starter assembly performance tests. Refer to Starter No Load Test .