P262FSensor Reference Voltage G Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P262F is the plausibility check of reference output G. The voltage is neither shorted nor missing, yet it wanders outside a tighter tolerance band or jumps around, which falsifies every ratiometric sensor on that circuit. Ford's 2012 summary shows the idea for its references A to C on Bosch Tricore modules: below 4.7 V or above 5.2 V for 0.5 s counts as a range fault. GM goes further on its numbered references and also compares the filtered with the unfiltered value, failing when they drift apart, so short dropouts are caught as well. No manufacturer documents P262F publicly. Typical sources are a poor ground at the module, a loose pin that opens briefly under vibration, or a sensor drawing too much current. P262C to P262E are the circuit faults on G.
- What you may notice
- Check engine light
- Sporadic implausible values from several sensors
- Occasional hesitation or limp mode
- Likely causes
- LikelyLoose pin or splice on circuit G opening briefly under vibration
- PossiblePoor ground connection of the engine module
- PossibleSensor on the group drawing excessive current
- RareDrifting internal regulator of the engine module
- 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: €50 – €800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.