Operation CHARM: Car repair manuals for everyone.

Starter Motor Load Test

Conduct this test if the starter motor cranks slowly and it is desired to compare current to specifications.
1. Connect Rotunda 800A Load Tester and Stand 041-00112 or equivalent. Make sure that current is not flowing through ammeter and heavy-duty carbon pile rheostat portion of circuit (rheostat at maximum counterclockwise position).
2. Place transaxle in NEUTRAL or PARK. Crank engine with ignition switch off, and determine exact reading on voltmeter. This test is accomplished by disconnecting push-on connector at solenoid S terminal and connecting a remote control starter switch from positive battery terminal to solenoid S terminal.

NOTE: Make sure ignition switch is in the OFF position and S terminal connector has been removed so engine does not start.

Starter Load Test:





Battery Load Test:






3. Stop cranking engine, and reduce resistance of carbon pile until voltmeter indicates same reading as that obtained while starter motor cranked the engine. The ammeter will indicate starter current draw under load. Check this with value listed in Starter Specifications. Specifications