P06F5Glow Plug Control Module 2
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- SAE J2012 provides a complete code family for a second glow plug control module, mirroring module 1 code for code. P06F5 is the general or internal fault of module 2, the counterpart of P064C. For module 1, GM's L5P groups driver faults (under 3.2 A with 0 V at the plug for 3.5 s) and a ROM checksum error under P064C, after two trips; Ford's 2023 Power Stroke lists P064C among the module checks with detection in about 1 s. No manufacturer document available to us uses a second glow module – Ford's and GM's V8 diesels drive all eight plugs from one; the code suits systems with one module per cylinder bank. The description follows module 1 (P064C). The plugs fed by module 2 then heat poorly or not at all.
- What you may notice
- Check engine light, possibly glow plug/wait-to-start lamp
- Hard cold start, long cranking in frost
- Rough cold idle and white smoke, often one cylinder bank only
- Usually no symptoms when warm
- Likely causes
- LikelyGlow plug control module 2 faulty internally
- PossiblePoor supply or ground of module 2
- RareModule software or configuration
- 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 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.