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Home >> Honda >> 2021 >> Accord Touring >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle - DTC Diagnostics (P0501 - P0871) (Except Hybrid) >> DTC Troubleshooting >> P07AA, P07AB (A/T)

P07AA, P07AB (A/T)

DTC P07AA  : Brake B2 Stuck OFF

DTC P07AB  : Brake B2 Stuck ON

NOTE:  Before you troubleshoot, review the General Troubleshooting Information .

DTC Description Confirmed DTC Pending DTC Freeze Frame
P07AA Brake B2 Stuck OFF      
P07AB Brake B2 Stuck ON      

DTC (A/T)

  1. Problem verification

    -1. Turn the vehicle to the ON mode.

    -2. Clear the DTC with the HDS.

    -3. Test-drive under these conditions:

    DTC Test Condition
    P07AA
    • Start the engine.
    • While pressing the brake pedal, shift the transmission to D position/mode, and wait for at least 10 seconds.
    P07AB
    • Start the engine, and wait for at least 10 seconds in P position/mode.
    • While pressing the brake pedal, shift the transmission to D position/mode, and wait for at least 10 seconds.

    -4. Check for Pending or Confirmed DTCs with the HDS.

    DTC Description Confirmed DTC Pending DTC Freeze Frame
    P07AA Brake B2 Stuck OFF      
    P07AB Brake B2 Stuck ON      

    Is DTC P07AA or P07AB indicated?

    YES 

    The failure is duplicated. Replace the valve body 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.