Ignition Coil "B" Primary/Secondary Circuit Malfunction (Cylinder 2)
An electrical fault has been detected in the ignition coil circuit for cylinder 2 — open primary winding, short to ground, or short to supply. The ECU disables the coil to protect its driver and the cylinder misfires.
Affected components
- Ignition coil
- Ignition coil wiring
Common causes
- High likelihood: Coil primary winding open or shorted
- Medium likelihood: Wiring or connector fault
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Related codes
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.