Diesel Data: Automotive Repair

Test G: The Charging System Warning Indicator Is Never On

PINPOINT TEST G: THE CHARGING SYSTEM WARNING INDICATOR IS NEVER ON


G1-G3:






G4:






Normal Operation
The charging system warning indicator is controlled by the instrument cluster based upon data received from the powertrain control module (PCM) over the communication network.

Possible Causes
- PCM
- Instrument cluster