Generator Test (Undercharged Battery Check): Notes

This condition, as evidenced by slow cranking or indicator clear with dark or light yellow dot can be caused by one or more of the following conditions even though indicator light may be operating normal.

The following procedure also applies to cars with voltmeter and ammeter.

1. Make sure that undercharged condition has not been caused by accessories left on for extended period of time.
2. Check drive belt for proper tension.
3. If battery defect is suspected, refer to BATTERY DESCRIPTION .
4. Inspect wiring for defects. Check all connections for tightness and cleanliness, battery cable connections at battery, starting motor, ignition ground cable and no "C" terminal circuit at ground.
5. Connect switch (6), load (5), battery (4), voltmeter (3) and ammeter (2) to generator (1) as shown in figure.

   Voltmeter: Set between generator "B" terminal and ground  .

   Ammeter: Set between generator "B" terminal and battery (+) terminal  .

   NOTE: Use fully charged battery.
   Fig 1: Measuring Generator Current And Voltage

   Courtesy of SUZUKI OF AMERICA CORP.
6. Measure current and voltage.