P0350
Ignition Coil Primary/Secondary Circuit/Open
A general open-circuit fault has been detected on an ignition coil's primary or secondary winding (no specific cylinder identified). This code is set when the PCM cannot localise the fault to a single coil.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Coil winding openCommon
- Pin pushed back out of connector bodyLess likely
- Cracked solder joint inside the module or sensorLess likely
Parts involved
- Ignition Coil
P0350 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.