P0683

Technical Definition:

Glow Plug Control Module to Powertrain Control Module (PCM) Communication Circuit

Trouble Code: P0683
Address: 0x0683
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits
Technical Description:

Possible Causes:

Possible Symptoms:

Glow Plug Module Control To ECM Communication Circuit Fault

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Glow Plug Control Module (GPCM)
– GPCM harness is open or shorted
– GPCM circuit poor electrical connection
– Faulty Engine Control Module (ECM)

Specific Makes:

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