Alternator & Regulator: Overview Dodge Dakota

DESCRIPTION

Chrysler Motors light trucks use either a Bosch or a Denso alternator. The alternator consists of a rotor, stator, rectifiers, front and rear covers and drive pulley. Voltage regulation is controlled by the Single Board Engine Controller (SBEC) on all models except diesel. On diesel models, voltage regulation is controlled by a transistorized voltage regulator.

The SBEC monitors critical input to control fuel injection, ignition, emission and other engine management functions. The SBEC has also been programmed to monitor several charging system related circuits

1. Battery feed to SBEC
2. Alternator field control
3. Battery charging voltage (high and low)

If a problem is sensed in a monitored circuit, a fault code is stored in the SBEC's memory and the CHECK ENGINE light will be turned on (with a few exceptions). Fault codes can be read using the CHECK ENGINE light or with the Chrysler Diagnostic Readout Box-II (DRB-II).

Note. Fault codes remain in memory for 50 engine starts. Fault is erased from memory if failure does not reoccur .

For certain fault codes, CHECK ENGINE light will illuminate and engine controller will enter limp-in mode. In limp-in mode, engine controller attempts to compensate for particular component failure by substituting information from other sources. This allows vehicle operation until proper repairs are made.

ALTERNATOR APPLICATION