DTC Troubleshooting: U187F (PGM - FI System (3.0L Engine)) (2025): Notes

DTC U187F  : Cyber Security Malfunction (Secure Boot)

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) .