P037F

DTC P037F, sometimes indicated as P037F00 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the ignition system causing glow plug sense circuit high.

The glow plug sense circuit is high when the glow plug control module (GPCM) detects an open or short in the glow plug circuit. This causes the engine to misfire and stall.
The most common causes of this code are a bad glow plug, a bad wiring harness, or a bad GPCM.
If you have a bad glow plug, you will need to replace it.
If you have a bad wiring harness, you will need to replace it.
If you have a bad GPCM, you will need to replace it.

• P037F: Plug Sense Circuit High
• P037F: Glow Plug Sense Circuit High
• P037F: Glow plug monitoring – circuit high
• P037F 00: Glow plug monitoring - circuit high