Operation CHARM: Car repair manuals for everyone.

No-Load Test

1. Ensure all electrical loads are off and brake pedal is released.
2. Install ammeter as shown in Fig. 7, then start engine and raise RPM to between 2,500 - 3,000 RPM.

Fig. 7 No-Load & Load Test Connections:





3. Ensure alternator output is at least 5 amps. If not, replace alternator as necessary.