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DTC - Diagnostic Trouble Codes information

P0683

Powertrain Codes

P0683 - FORD - Glow Plug Module Control To ECM Communication Circuit Fault

Symptoms

- Engine Light ON (or Service Engine Soon Warning Light) - Lack/Loss of Power - The engine may be harder to start - Engine hesitation

Possible Causes

- Control line open circuit - Control line short to ground or power - Faulty GPCM - ECM fault

Description

The Engine Control Module (ECM) has detected a communication fault with the Glow Plug Control Module (GPCM) circuit