GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 39200 Digital Multimeter
    • J 35590 Inductive Current Clamp

Object Number: 206072  Size: SH

The starter motor relay is located in the engine compartment, on the lower right side of the cowl.


Object Number: 206083  Size: SH

The starter motor relay for vehicles with automatic transmissions is also located in the engine compartment, on the lower right side of the cowl.

Use the following procedure in order to prevent the engine from starting while performing the relay tests:

  1. Disconnect the ignition and tachometer harness from the distributor on gasoline engines.
  2. Disconnect the fuel shut off solenoid connector on diesel engine models.
  3. Shift the transmission into the NEUTRAL position.
  4. Block the wheels.

For detailed test procedure refer to the following sections for complete circuit description:

    •  Starting System Circuit Description
    •  Starting System Circuit Description
    •  Starting System Circuit Description