DTC Troubleshooting: U3500 (PGM - FI System (3.5L Engine)) (2025): Notes

DTC U3500  : Input Power A Circuit Range/Performance

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) .
• Troubleshoot the following DTCs first, if stored at the same time.
• • -

    PCM Power Source Circuit [PGM-FI]: DTC P1AF0 - Refer to: DTC Troubleshooting: P1AF0(PGM-FI System (3.0L Engine)) (2025) or DTC Troubleshooting: P1AF0(PGM-FI System (3.5L Engine)) (2025) , P1AF1 - Refer to: DTC Troubleshooting: P1AF1(PGM-FI System (3.5L Engine)) (2025) or DTC Troubleshooting: P1AF1(PGM-FI System (3.0L Engine)) (2025)

NOTE:  If DTC U3500 is indicated alone, do the troubleshooting for DTC P1AF0 and P1AF1 using the on-board snapshot for U3500.