P0360
Ignition Coil J Primary Control Circuit/Open
Ignition / misfire
Generic OBD-II
High
What it means
P0360 means the primary control circuit for ignition coil "J" is open or faulty, so the ECM can't properly fire that coil. With no spark on its cylinder, the engine misfires and runs rough — usually from a wiring/connector problem or a failed coil rather than the computer.
High
Can I keep driving? The affected cylinder likely isn't firing — expect a misfire; drive as little as possible to protect the catalytic converter.
Common symptoms
What you'll notice
- Check-engine light on (may flash if the cylinder is misfiring)
- Rough idle and noticeable miss
- Hesitation and loss of power on acceleration
- Increased fuel consumption and possible fuel smell from unburned fuel
Common causes
Most likely first
- Failed ignition coil 'J' (the coil for its cylinder)Likely
- Open, shorted, or corroded wiring in the coil's primary control circuitCommon
- Loose or damaged coil connectorCommon
- Loss of power or ground to the coilLess often
- ECM/ignition driver fault (less common)Less often
How to diagnose & fix
Work through it in order
- Locate coil 'J' for your engine, then inspect its connector and primary wiring for opens or corrosion.
- Check for battery voltage and a good ground at the coil connector.
- Swap the coil with a known-good cylinder; if the fault follows the coil, replace it.
- Repair any wiring faults, then clear and re-test.
FAQ
Quick answers
Is it safe to drive with P0360?+
No for long — an unfired cylinder dumps raw fuel into the exhaust and can overheat the catalytic converter.
Can I just clear P0360?+
It returns immediately if the coil or its circuit is open. Repair the circuit or coil first.
Related codes
Often seen with P0360
Read & clear P0360 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX