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Home >> Honda >> 2021 >> HR-V EX, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System - DTC Diagnostics (4 Of 4) >> DTC Troubleshooting >> DTC U0029 (Without Multipurpose Camera Unit)
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DTC U0029 (Without Multipurpose Camera Unit)

DTC U0029  : F-CAN Malfunction (BUS-OFF (PCM))

NOTE:  Before you troubleshoot, review the general troubleshooting information .

DTC Description Confirmed DTC Pending DTC Freeze Frame
U0029 F-CAN Malfunction (BUS-OFF (PCM))      

DTC (PGM-FI)

  1. Problem verification

    -1. Turn the vehicle to the ON mode.

    -2. Clear the DTC with the HDS.

    -3. Check for Pending or Confirmed DTCs with the HDS.

    DTC Description Confirmed DTC Pending DTC Freeze Frame
    U0029 F-CAN Malfunction (BUS-OFF (PCM))      

    Is DTC U0029 indicated?

    YES 

    The failure is duplicated. Update the PCM if it does not have the latest software, or substitute a known-good PCM , then recheck. If DTC U0029 goes away and the PCM was updated, troubleshooting is complete. If DTC U0029 goes away and the PCM was substituted, replace the original PCM .

    NO 

    Intermittent failure, the system is OK at this time. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot .