Ignition Coil D Secondary Circuit
A fault is detected in the secondary side of ignition coil D. Insufficient spark energy results in cylinder misfire.
Affected components
- Ignition coil
- Spark plug
Common causes
- High likelihood: Worn spark plug
- Medium likelihood: Secondary winding failure
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.