P052F
Glow Plug Control Module 1 System Voltage
Generic OBD-II
Real-world scan data
Seen in
34
scans in the past year
Found in
<0.1%
of scans
<0.1%
of scans that found faults
Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.
Common symptoms
What you'll notice
- Check the battery voltage and ensure it is within the recommended range
- Inspect the wiring and connections to the glow plug control module for any damage or loose connections
- Test the glow plug control module for proper functionality and replace if necessary
- Check the glow plugs themselves for any signs of damage or wear, and replace if needed
- Inspect the engine coolant temperature sensor and ensure it is providing accurate readings
Common causes
Most likely first
- Faulty glow plug control module
- Low battery voltage
- Loose or corroded electrical connections
- Faulty glow plugs
- Faulty engine control module
How to diagnose & fix
Work through it in order
- Glow plug indicator light does not illuminate
- Engine misfires or runs rough
- Difficulty starting the engine, especially in cold weather
- Excessive smoke from the exhaust
- Loss of power or poor acceleration
Read & clear P052F yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.