Quick Test Information

The central electronic module (CEM) has built-in functions for regulating the alternator (alternator control module (ACM)).

To charge the battery optimally, the output voltage from the alternator is calculated from the battery's calculated temperature. The central electronic module (CEM) receives the battery's temperature from the battery monitoring module (BMS).

The test is divided into two parts - an automatic test and a manual test.

Select one of the alternatives below: 

1. Automatic test of alternator function. Refer to AUTOMATIC TEST OF ALTERNATOR FUNCTION .
2. Manual test of alternator function. Refer to MANUAL TEST OF ALTERNATOR FUNCTION .

Fig 1: Freewheel Generator

Courtesy of VOLVO CARS CORPORATION