Possible Causes
NOTE:
Glow plug control module ST pin open circuit, high resistance
- The powertrain control module has determined an open circuit through lack of bias voltage, low current flow, no change in the state of an input in response to an output
- Glow plug control module circuit open circuit, high resistance
- Glow plug control module connector is disconnected, connector pin is backed out, connector pin corrosion
- Glow plug control module failure