P0360Ignition Coil J Primary Control Circuit/Open
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P0360 monitors the primary control circuit of ignition coil J – the line from the engine module to the coil or to its built-in output stage – for an open circuit or high resistance. Coil J usually serves cylinder 10, so the code only occurs on engines with at least 10 cylinders. GM does not use the code (at most eight cylinders). Ford uses coils I and J on its 6.8-litre V10 in vans, pickups and motorhome chassis. Ford checks continuously from 200 rpm within 1 s, expecting a primary-current feedback for every ignition command, and then shuts off injection to that cylinder for 30 s at a time to protect the catalyst. Ford's PCM code list (Roush workshop manual for the V10) shows the code with check engine light. Short circuits have their own codes (P2327 ff).
- What you may notice
- Check engine light on
- Misfire and rough running on cylinder 10, often also P0310
- Loss of power, jerking under load
- Cylinder shut off (injection off), risk to the catalyst if driven on
- Likely causes
- LikelyIgnition coil J faulty (output stage in the coil or primary winding open)
- LikelyConnector at the coil corroded, wet or with a loose pin
- PossibleControl, supply or ground wire open or chafed
- RareDriver in the engine module faulty or software (permanent dwell)
- 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: €60 – €350
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.