10683908

1.

Connect GDS to Data Link Connector (DLC).

2.

Warm engine up to normal operating temperature.

3.

Turn "OFF" electrical devices and A/C.

4.

Monitor "BATTERY VOLTAGE" parameter on the GDS

Specification :12.5V~14.5V at idle without any load(800RPM)

Fig.1) "BATTERY VOLTAGE" data at idle after warming engine up.

Check if the symptoms listed below occur as checking if battery voltage drops dramatically when turning on the electrical devices.

warning

※ The vehicles with the alternator of poor charging efficiency

1. Lamps are dim at idle, while lamps are bright at acceleration.

2. Intermitently RPM drops excessively or engine shut down at low RPM close to idle state at times.

3. Smooth cranking happens rarely. (Warning lamps in cluster turn dimmer excessively at cranking and poor cranking happen.)

4. Charging lamp turns on during driving.