P263FGlow Plug Control Module 2 Over Temperature
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P263F is reserved for engines with a second glow plug control module, for instance one per cylinder bank on large V engines; it reports that this second unit has exceeded its permitted internal temperature. No manufacturer documents P263F publicly, and the documented North American V8 diesels from Ford and GM manage all eight plugs with a single module, so they only use the module 1 code P263E. The logic would match that code: GM's L5P sets module 1 overheating above 123 °C during glowing, Ford's 6.7 L above 125 °C. CARB requires glow plugs to be monitored as one component. Likely triggers are high-current or shorted plugs on the bank served by module 2, extended glowing in severe cold, or an internal module fault. Cold starting suffers on one bank.
- What you may notice
- Check engine light, glow lamp flashing
- Harder cold start, uneven running until warm
- Likely causes
- LikelyHigh-current or shorted glow plugs on the bank served by module 2
- PossibleLong or repeated glow phases in severe cold
- PossibleInternal fault or poor cooling of glow plug module 2
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €100 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.