P2325Ignition Coil I Primary Control 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
- P2325 flags a short to voltage on the trigger line of coil I, the ninth ignition output. Ford is again the only maker that lists it publicly: in its OBD summaries P2325 sits among the codes for a coil driver shorted high, and the 2014 Ford code list shows it as a MIL-lighting code checked with the engine running. The PCM judges current and voltage on the driver against open and short limits; when it trips, it stops fuel to that cylinder to protect the catalyst, waits 30 s and turns the injector back on, repeating the cut within about 0.1 s if the fault is still there. That makes the symptom a pulsing loss of one cylinder rather than a steady miss. On a Ford V10 the cause is mostly the coil or a chafed wire; P2324 is the ground-side fault on the same coil.
- What you may notice
- Check engine light on
- Cylinder 9 drops out in roughly 30 s cycles
- Uneven idle and vibration
- Likely causes
- LikelyCoil I control wire touching a 12 V feed
- PossibleCoil I primary winding damaged
- RarePCM driver stage for coil I faulty
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €40 – €450
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.