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Home >> Honda >> 2021 >> Clarity Plug-In Hybrid >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC Diagnostics (P0571 - P2119) (Plug-In) >> DTC Troubleshooting >> DTC P172B
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DTC P172B

DTC P172B  : KEY-Release Switch Input Circuit Malfunction

NOTE: Before you troubleshoot, review the General Troubleshooting Information .
DTC Description Confirmed DTC Pending DTC Freeze Frame
P172B KEY-Release Switch Input Circuit Malfunction      

DTC (Gear)

  1. Problem verification

    -1. Turn the vehicle to the ON mode.

    -2. Clear the DTC with the HDS.

    -3. Turn the vehicle to the OFF (LOCK) mode.

    -4. Turn the vehicle to the ON mode, and wait for at least 1 minute.

    -5. Check for Pending or Confirmed DTCs with the HDS.

    DTC Description Confirmed DTC Pending DTC Freeze Frame
    P172B KEY-Release Switch Input Circuit Malfunction      

    Is DTC P172B indicated?

    YES 

    The failure is duplicated. Faulty SBW shifter control module. Replace the SBW shifter assembly .

    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.