P0361 code meaning
Ignition Coil K Primary Control Circuit/Open
Powertrain system Generic code P03xx codes Check engine light
What P0361 means
P0361 monitors the primary control circuit of ignition coil K – the line from the engine module to the coil or to its built-in output stage – for an open circuit or high resistance. Coil K usually serves cylinder 11, so the code only occurs on engines with at least 11 cylinders; in practice these are V12 or W12 engines. No manufacturer document available to us uses the code: GM goes up to coil H, Ford's descriptions end at coil J (P0360). CARB requires the ignition outputs to be monitored for open and short circuits. Ford's description of the same check for coils A to J shows how it works: it runs continuously between 200 and about 3,200 rpm at 11–16 V, judges either the current confirmation from the coil driver or the current and voltage at the driver output, and after a coil fault shuts off that cylinder's injector for 30 s at a time to protect the catalyst. Coil K's control circuit low and high are P2330 and P2331, its secondary circuit P2332.
P0361 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 2 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0361
- Check engine light on
- Misfire and rough running on cylinder 11, often also P0311
- Loss of power, jerking under load
- Cylinder shut off (injection off), risk to the catalyst if driven on
Common causes of P0361
- Most likelyIgnition coil K faulty (output stage in the coil or primary winding open)
- Most likelyConnector at the coil corroded, wet or with a loose pin
- PossibleControl, supply or ground wire open or chafed
- Less likelyDriver in the engine module faulty or software (permanent dwell)
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Ignition coil kIgnition wiringEngine control module
What each part of P0361 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 3 | Area: ignition system or misfire. |
| 61 | The exact fault in that area. |
What to do next
- Note P0361 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0361
What does P0361 mean?
P0361 means "Ignition Coil K Primary Control Circuit/Open". P0361 monitors the primary control circuit of ignition coil K – the line from the engine module to the coil or to its built-in output stage – for an open circuit or high resistance. It is a generic code, so it means the same on every make.
Is it safe to drive with P0361?
Drive gently and only to a workshop. With P0361 the car can go into limp mode (reduced power) to protect itself.
Will P0361 fail an emissions test?
Yes, it can. P0361 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0361 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P0361 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.