Section 75 (Generator & Regulator): Operation
WARNING: This page is about a different car, the 1995 Dodge Ram Wagon, 1995 Dodge Ram Van, 1995 Dodge Pickup, and 1995 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
The PCM monitors critical input to control fuel injection, ignition, emission and other engine management functions. The PCM is also programmed to monitor charging system related circuits:
- Battery feed to PCM
- Generator field control
- Battery charging voltage (High & Low)
If a problem is sensed in a monitored circuit, fault code will be stored in PCM memory and Malfunction Indicator Light (MIL) will come on, provided specific criteria have been met. Fault codes can be read using MIL or Chrysler's Diagnostic Readout Box (DRB).
NOTE:
Fault code is erased from memory if failure does not reoccur after 50 engine starts.
Certain fault codes cause MIL to illuminate and engine controller to 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.