P0670 DODGE Glow Plug Control Module Circuit Fault

Possible causes
– Faulty Glow Plug Control Module (GPCM)
– GPCM harness is open or shorted
– GPCM circuit poor electrical connection
– Faulty Engine Control Module (ECM)
When is the code detected?
The Engine Control Module (ECM) has detected a fault on the Glow Plug Control Module (GPCM) control circuit
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Lack/Loss of Power
– The engine may be harder to start
– Engine hesitation