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Home >> Honda >> 2021 >> CR-V EX-L, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 112 (Power Tailgate System - Diagnostics (Hybrid)) >> DTC Troubleshooting >> DTC B1377

DTC B1377

WARNING: This page is about a different variant/trim than selected.

DTC B1377  : Power Tailgate Inside switch circuit malfunction

NOTE:  If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A .

DTC Description DTC
B1377 Power Tailgate Inside switch circuit malfunction  

DTC (Power Tailgate Control Unit)

  1. Problem verification

    -1. Clear the DTCs with the HDS.

    -2. Open the tailgate with the keyless transmitter.

    -3. Press the power tailgate inside switch for more than 1 second.

    -4. Check for DTCs with the HDS.

    DTC Description DTC
    B1377 Power Tailgate Inside switch circuit malfunction  

    Is DTC B1377 indicated?

    YES 

    Go to step 2.

    NO 

    Intermittent failure, the system is OK at this time. Check for loose or poor connections.

  2. Shorted wire check (PTG/PTL_CLOSE_SW line)

    -1. Turn the vehicle to the OFF (LOCK) mode.

    -2. Disconnect the following connector.

    Power tailgate control unit connector A (24P)

    -3. Measure the resistance between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
    Power tailgate control unit connector A (24P): disconnected
    Test point 1 Power tailgate control unit connector A (24P) No. 24
    Test point 2 Body ground

    Is there 1.0 MΩ or more?

    YES 

    Repair a short to ground in the PTG/PTL_SCOM wire.

    NO 

    Repair a short to ground in the PTG/PTL_CLOSE_SW wire.