P2324Ignition Coil I Primary Control Circuit Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- Coil I is the ninth coil, so P2324 only appears on ten- or twelve-cylinder petrol engines. The documented user is Ford: its OBD system summaries (2012 and 2020–2023) group P2324 with the other codes for a coil driver shorted to ground, monitored continuously from 200 rpm with the battery between 11 and 16 V, and Ford's 2014 code interpretation list marks it as a MIL code. The candidate engine in Ford's range is the 6.8-litre Modular V10 of the E-Series and heavy trucks, for which Ford also specifies a 40-1 crank wheel. After a driver fault the PCM shuts the injector of that cylinder for 30 s and retries. GM's tables end at coil H, so no GM engine uses this code. Opens on coil I are P0359, misfire on cylinder 9 is P0309.
- What you may notice
- Check engine light on
- Cylinder 9 cuts out, rough running
- Reduced towing or climbing power
- Likely causes
- LikelyCoil I (cylinder 9) shorted internally
- PossibleCoil I control wire grounded on the engine or exhaust side
- PossibleMoisture or corroded pins at the coil I plug
- RarePCM coil driver for cylinder 9 failed
- 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.