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.
Affected components
- Ignition coil
Common causes
- High likelihood: Coil winding open
- Low likelihood: Pin pushed back out of connector body
- Low likelihood: Cracked solder joint inside the module or sensor
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.