FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Amperage Draw Test

1. Run engine until it reaches operating temperature, then turn engine off.
2. Connect a suitable battery-starter tester according to manufacturer's instructions.
3. Turn battery-starter tester control knob to ``Off'' position.
4. Turn voltmeter selector knob to ``16 Volt'' position.
5. Turn battery-starter function selector to ``Starter System Test'' (0-500 amp scale).
6. Connect red positive ammeter lead to positive battery terminal and the black negative ammeter lead to negative battery terminal.
7. Connect red positive voltmeter lead to positive battery terminal and the black negative voltmeter lead to the negative battery terminal.
8. Connect a remote starter jumper according to manufacturer's instructions. Do not crank engine excessively during testing.
9. Disconnect coil wire from distributor cap center tower and secure to good ground.
10. Crank engine with remote starter switch and observe exact voltmeter reading, then stop cranking engine.
11. Turn tester control knob clockwise until voltmeter reads exactly the same as when engine was being cranked. On direct drive starters, ammeter should read 120-160 amps. On reduction gear starters, ammeter should read 150-210 amps