DTC Troubleshooting: P2506 (1.5L Engine) (2025): Notes

DTC P2506  : Power Input Signal 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 (1.5L Engine) or How to Troubleshoot the Brake Booster Pressure Monitoring System or How to Troubleshoot the Fuel and Emissions Systems(2.0L Engine) (2024 2025) or How to Troubleshoot the CVT System .
• Troubleshoot the following DTCs first, if stored at the same time.
• • -

    PCM Power Source Circuit [PGM-FI]: DTC P1AF2 , P1AF3 - Refer to: DTC Troubleshooting: P1AF3(1.5L Engine, CVT) (2025) or DTC Troubleshooting: P1AF3(1.5L Engine, M/T) (2025)

NOTE:  If DTC P2506 is indicated alone, do the troubleshooting for DTC P1AF2 and P1AF3 using the on-board snapshot for P2506.