P037D
Glow Plug Sense Circuit
P037D is an OBD-II diagnostic trouble code meaning: Glow Plug Sense Circuit. Common causes: open or short circuit in the glow plug control circuit, faulty glow plug relay. Estimated repair cost: $56–167.
Symptoms
- Difficulty starting the engine, especially in cold weather
- Increased exhaust smoke
- Unstable engine operation at idle
- Check Engine Light Illuminates
Causes
- Open or short circuit in the glow plug control circuit
- Faulty glow plug relay
- Poor contact in circuit connectors
- Failure of glow plugs
- Engine control unit malfunction
How to Fix
- Check the resistance of the glow plugs
- Check the integrity of the wiring harness and contacts
- Check the functionality of the glow plug relay
- If necessary, replace faulty components
- Reset the error and check if it appears again
Related codes
Error P037D by Vehicle Brand
FAQ
What does the P037D code mean?
P037D is an OBD-II diagnostic trouble code that indicates: Glow Plug Sense Circuit
What causes a P037D error code?
The most common causes of P037D include: Open or short circuit in the glow plug control circuit; Faulty glow plug relay; Poor contact in circuit connectors; Failure of glow plugs.
How do I fix a P037D diagnostic trouble code?
To fix P037D: Check the resistance of the glow plugs. Check the integrity of the wiring harness and contacts. Check the functionality of the glow plug relay. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P037D?
Limited driving only, diagnose soon
How much does it cost to fix P037D?
The estimated repair cost for P037D is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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