Starter Motor: Testing and Inspection

Starter Motor Internal Connections:

The starter motor and solenoid in the previous figure are shown diagrammatically to indicate simply, the electrical circuit and various connections.

Basic Checks
Before changing any component, check the continuity of relevant harness circuits; in some instances, the PDU will not differentiate between a faulty component and a damaged connection or wiring.

Check any relevant connections and relay bases to confirm that the connection is electrically sound and that a terminal pin has not been pushed back into the connector shell, ie. not making a connection to its mating pin / socket.

Check the following fuses:

Engine Compartment Rear Fusebox:

Fuse F3 (25A).

Engine Compartment Front Fusebox:

Fuse F5 (10A).

Refer to the PDU User Guide for details of diagnosing and testing the Starting System. The PDU interrogates each component of the starting circuit directly via the diagnostic socket.

The PDU will give an indication of the integrity of each electronic and electrical component. It will indicate, for example, that the relay is not operating, but not on every occasion will it define the actual reason.



Starter Motor Bench Test Data




The bench test data is provided for those dealers with suitable equipment available to perform the stated tests.

When performing the stall test, it is most important that the motor is stalled only for long enough to read the stalled torque output and current flow indicated on the test equipment, or permanent damage could occur to the starter motor.