Code Definition

P0675 — Cylinder 5 Glow Plug Control Circuit/Open

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Ford

About P0675

P0675 is a generic (obd-ii standard) powertrain diagnostic trouble code recorded for Ford vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P0675 is stored, the module has detected an open (broken or disconnected) electrical path in the monitored circuit; and a signal or supply voltage lower than the expected operating range.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P0675 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The powertrain control module (PCM), often working through a dedicated glow plug control module (GPCM) or fuel injection control module (FICM), energises the cylinder 5 glow plug during preheating to warm the combustion chamber for cold starting, and continues to monitor that circuit. The module watches the voltage and current on the cylinder 5 glow plug circuit to confirm the plug is drawing the expected load. DTC P0675 is set when an open circuit, short, or current draw outside the specified thresholds for cylinder 5 is detected, typically during the key on self test or crank cycle, and the ...

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