P037F Code - Glow Plug Sense Circuit High
Quick Answer
The glow plug controller is a solid state device which operates the glow plugs. Common causes include Faulty Glow Plug Control Module, Glow Plug Control Module harness is open or shorted, Glow Plug Control Module circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P037F indicates Glow Plug Sense Circuit High.
- Common causes
- Common causes include Faulty Glow Plug Control Module, Glow Plug Control Module harness is open or shorted, Glow Plug Control Module circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P037F Description
What are the Possible Causes of the DTC P037F?
- Faulty Glow Plug Control Module
- Glow Plug Control Module harness is open or shorted
- Glow Plug Control Module circuit poor electrical connection
How to Fix the DTC P037F?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P037F code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P037F Code
1. What does the OBDII code P037F mean?
P037F indicates a high voltage condition in the glow plug sense circuit, which monitors the operation of the glow plugs in diesel engines.
2. What are common symptoms of code P037F?
Symptoms may include difficulty starting the engine in cold weather, poor engine performance, a check engine light, and reduced fuel efficiency.
3. What causes the P037F code to appear?
Common causes include faulty glow plugs, damaged wiring or connectors in the glow plug circuit, a malfunctioning glow plug control module, or a sensor issue.
4. Can I drive my vehicle with code P037F?
While the vehicle may still run, driving with this code can lead to starting issues, especially in cold weather, and may cause further damage to related components.
5. How do I diagnose the P037F code?
Check the glow plug circuit wiring and connections for damage, test the glow plugs for proper operation, and inspect the glow plug control module for faults.
6. How can I fix the P037F code?
Repairs may involve replacing damaged glow plugs, repairing or replacing faulty wiring or connectors, or replacing the glow plug control module.
7. How much does it cost to repair code P037F?
Repair costs vary depending on the specific issue but can range from $50 for a simple wiring fix to $300 or more for glow plug or module replacement.
8. Can a bad battery cause code P037F?
Yes, a weak or failing battery can affect the voltage in the glow plug circuit and contribute to the P037F code.
9. Will clearing the code P037F fix the problem?
Clearing the code may turn off the check engine light temporarily, but the underlying issue must be repaired to prevent the code from returning.
10. Do I need specialized tools to fix code P037F?
Basic tools like a multimeter can help test the glow plug circuit, but replacing components may require additional tools specific to your vehicle.
Discuss the causes and fixes for P037F OBDII Code
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