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TuningBot DTC Database · v4.37.15

P037F Glow Plug Sense Circuit High

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainIgnitionOBD2

What P037F means

P037F
Glow Plug Sense Circuit High Generic · ignition Data confidence 85%

The control module detected that the signal in the Glow Plug Sense circuit stayed above the expected operating range.

Symptoms

  • Hard cold starting possible
  • MIL or glow indicator active
  • Possible white smoke at cold start

Possible causes

  • One or more glow plugs open circuit
  • Glow plug control module fault
  • Wiring or connector fault

Recommended checks

  • Measure individual glow plug resistance
  • Check control module output and supply
  • Inspect wiring and connectors

Related and nearby codes

How to read P037F

P

Powertrain: engine, transmission and driveline systems.

0

Generic SAE-standard code: same meaning on every make.

37F

Specific fault index within the subsystem.

Frequently asked questions about P037F

What does P037F mean?

Glow Plug Sense Circuit High. The control module detected that the signal in the Glow Plug Sense circuit stayed above the expected operating range.

Is P037F generic or manufacturer-specific?

P037F is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P037F at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

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