DTC Troubleshooting: P1AF3 (3.5L Engine) (2025): Notes

DTC P1AF3  : IG1 Voltage Correlation Abnormality

How to use this service information .

NOTICE: 

Before you troubleshoot, review the How to Troubleshoot - Refer to: How to Troubleshoot the Fuel and Emissions Systems (3.5L Engine) or How to Troubleshoot the Fuel and Emissions Systems (3.0L Engine) .