P2E6DHybrid/EV Battery Pack A Cell Thickness Sensor Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2E6D says the signal from the cell thickness sensor of pack A sits above the range the controller accepts as a real reading. The code describes the voltage, not swollen cells. No manufacturer documents P2E6D publicly, and how such a sensor is built varies: a Ford patent uses a resistive gauge on a thinned cell wall whose resistance climbs as the wall bulges, LG uses a fibre grid read by a photoresistor, and classic strain gauges are read through a Wheatstone bridge. With a pull-up input, an open wire or lost ground drives the value high; a short to a supply can do the same. Ford's BECM keeps the contactors open if a self-check finds cells no longer monitored. CARB wants separate codes for low and high out-of-range faults; low is P2E6E.
- What you may notice
- Hybrid or EV warning light
- Power or charging limited as a precaution
- In some designs the vehicle will not go to READY
- Likely causes
- LikelyOpen signal or ground wire, unplugged or corroded connector inside pack A
- PossibleSignal wire chafed against a supply or reference line
- PossibleThickness or pressure sensing element itself failed open
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €150 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.