P06F5
Glow Plug Control Module 2
Generic OBD-II
Common symptoms
What you'll notice
- Check and replace any faulty glow plugs
- Inspect and repair any damaged wiring or connections related to the glow plug control module
- Test and potentially replace the glow plug control module itself
- Ensure the battery has sufficient charge and is in good condition
- Verify that the engine coolant temperature sensor is functioning properly
Common causes
Most likely first
- Faulty glow plug control module
- Defective glow plugs
- Wiring issues or loose connections
- Faulty engine temperature sensor
- Battery power supply issues
How to diagnose & fix
Work through it in order
- Engine misfire or hesitation
- Reduced engine power or loss of power
- Difficulty starting the engine, especially in cold weather
- Increased fuel consumption
- Illuminated check engine light
Read & clear P06F5 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.