P2D7FCharging Start Switch Circuit High
- Generic OBD-II code · Powertrain
- How the car detects it
- P2D7F reports a start switch line sitting above its allowed voltage, caused by an open wire or contact on a pulled-up input or by contact with a supply voltage. No manufacturer documents P2D7F publicly. With a start button the consequences run the other way than with the stop switch P2D7A. If the input idles high and the button grounds it, an open circuit hides every press, so a timer-delayed session cannot be brought forward. If the button drives the line high, the fault resembles a permanent start command, and a well-designed control unit will not act on a signal it has flagged as faulty, so charging may wait for the timer or the next plug-in. Honda's early charger shows why the input matters: there the start switch alone released charging. Low counterpart: P2D80.
- What you may notice
- Start button has no effect
- Charging begins only by timer or after re-plugging
- Likely causes
- LikelyOpen circuit in the start switch line or connector (pull-up design)
- PossibleStart switch signal wire shorted to a supply voltage
- PossibleStart switch contact no longer closes
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.