System Diagnosis - Charging System

TOOL REQUIRED
J 39200 Digital Multimeter

To diagnosis the CS-130D charging system, use the following procedure.
1. Inspect the accessory drive belt for damage or wear. Service or replace as necessary.
2. Inspect the wiring.
3. Check for an undercharged or overcharged battery condition (voltage lower than 11 volts or higher than 16 volts), refer to Battery Is Undercharged or OverchargedBattery Is Undercharged or Overcharged
^ Detach the wiring harness connector from the generator.
^ With the ignition switch in the ON position and the engine not running, connect the J 39200 as a voltmeter from a ground to the L terminal in the wiring harness connector. Connect the F or the I terminal for the gauge equipped vehicles. At least one terminal should have battery voltage.
^ 0 volts indicates an open circuit between the terminal and the battery. Connect as required.
^ Reconnect the wiring harness connector to the generator.

IMPORTANT: Disconnect the negative battery cable before removing or installing a series-type ammeter at the generator battery terminal.

^ Install an ammeter at the generator output terminal. With the load off, install a carbon pile load test across the battery terminals. Start the engine and run at 2500 RPM. Make sure this is done at ambient temperature.
^ Measure the voltage across the battery, using the J 39200 If the voltage is above 16 volts, replace or repair the generator.
^ Turn on the accessories and place a load on the battery with the carbon pile to obtain maximum generator output. Maintain voltage at 13 volts or above. Use an ammeter to check amperage. Compare output to amperage rating in Generator Usage