P037F
Glow Plug Sense Circuit High
P037F is an OBD-II diagnostic trouble code meaning: Glow Plug Sense Circuit High. Common causes: open circuit in glow plug circuit, glow plug malfunction. Estimated repair cost: $56–167.
Symptoms
- Difficulty starting the engine in cold weather
- Floating idle speed
- Extended warm-up time
- Check Engine Light Illuminates
Causes
- Open circuit in glow plug circuit
- Glow plug malfunction
- Wiring harness damage
- Short circuit in the circuit
- Faulty glow plug relay
- Problems with the engine control module (ECU)
How to Fix
- Check the resistance of the glow plugs
- Inspect the wiring harness for damage
- Check the relays and fuses of the glow plug circuit
- Scan the ECU for additional errors
- Replace faulty glow plugs
- Repair damaged sections of the wiring harness
Related codes
Error P037F by Vehicle Brand
FAQ
What does the P037F code mean?
P037F is an OBD-II diagnostic trouble code that indicates: Glow Plug Sense Circuit High
What causes a P037F error code?
The most common causes of P037F include: Open circuit in glow plug circuit; Glow plug malfunction; Wiring harness damage; Short circuit in the circuit.
How do I fix a P037F diagnostic trouble code?
To fix P037F: Check the resistance of the glow plugs. Inspect the wiring harness for damage. Check the relays and fuses of the glow plug circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P037F?
Limited driving only, diagnose soon
How much does it cost to fix P037F?
The estimated repair cost for P037F is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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