Ignition G Control Signal Circuit/Open
The ignition G control signal circuit is open — typically the PCM drive line for the first ignition coil group has lost continuity.
Affected components
- Ignition coil
Common causes
- High likelihood: Open wire between PCM and coil
- 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
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.