P2333Ignition Coil L Primary Control Circuit Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2333 is the ground-short code for coil L, the twelfth and final coil letter in the SAE scheme. It fits only V12 or W12 engines. There is no public manufacturer documentation for it; the published lists of Ford and GM end at coils J and H. Read by analogy with GM's description of its lower coil codes, the module compares the voltage on the coil L control line with its own limits and records a short to ground after repeated bad samples. CARB's comprehensive component monitoring obliges the system to catch this kind of circuit fault. Note that the letter is a fixed SAE slot, not a cylinder number; a maker may assign coil L to a cylinder other than 12, so the service information of the vehicle decides which coil to inspect. The open-circuit partner is P0362.
- What you may notice
- Check engine light on
- One cylinder (usually 12) not firing
- Mild roughness at idle
- Likely causes
- LikelyCoil L shorted internally
- PossibleCoil L control wire chafed to ground
- PossibleDamaged or corroded coil L connector
- RareCoil L output stage in the engine module failed
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €60 – €800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.