DTC Troubleshooting: P1658 (3.5L Engine): Notes

DTC P1658  : Electronic Throttle Control System (ETCS) Control Relay ON Malfunction

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) .