DTC Troubleshooting: U0029 (1.5L Engine, PGM-FI System): Notes

DTC U0029  : PF-CAN A Malfunction (BUS-OFF (Powertrain Control Module (PCM)))

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.
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    Network Communications System [CAN Gateway]: DTC U0029-00 - Refer to: DTC Troubleshooting: U0029-00(CAN Gateway) (1.5L Engine) or DTC Troubleshooting: U0029-00(CAN Gateway, 2.0L Engine) (2024 2025)