Operation CHARM: Car repair manuals for everyone.

Amperage Draw Test

Before beginning any tests, ensure battery is fully charged and that all connections are satisfactory.
1. Run engine until it reaches normal operating temperature, then turn engine off.
2. Connect a suitable battery-starter tester according to manufacturers' 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 TEST (0-500 amp scale).
6. Connect red positive ammeter lead to positive battery terminal and black negative ammeter lead to negative battery terminal.
7. Connect red positive voltmeter lead to positive battery terminal and black negative voltmeter lead to negative terminal.
8. Connect a remote starter switch according to manufacturers' instructions. Do not crank engine excessively during testing.
9. Disconnect coil wire from distributor cap and secure it to good ground.
10. Crank engine and observe voltmeter reading, then stop cranking engine.
11. Turn tester control knob clockwise until voltmeter reading is the same as when engine was being cranked. Ammeter should read between 105-210 amps.