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Home >> Honda >> 2021 >> Insight EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC Diagnostics (3 Of 4) >> DTC Troubleshooting >> DTC P084F
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DTC P084F

DTC P084F  : Park/Neutral Switch Output Circuit

NOTE:
DTC Description Confirmed DTC Pending DTC Freeze Frame
P084F Park/Neutral Switch Output Circuit      

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 READY TO DRIVE mode.

    -5. While pressing the brake pedal, shift the transmission to N position/mode, and wait for at least 10 seconds.

    -6. While pressing the brake pedal, shift the transmission to P position/mode, and wait for at least 10 seconds.

    -7. Check for Pending or Confirmed DTCs with the HDS.

    DTC Description Confirmed DTC Pending DTC Freeze Frame
    P084F Park/Neutral Switch Output Circuit      

    Is DTC P084F indicated?

    YES 

    The failure is duplicated. Go to step 2.

    NO 

    Intermittent failure, the system is OK at this time. Check for poor connections and loose terminals between the SBW shifter control module and the body control module. 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.

  2. SBW shifter control module internal ATP-P line check

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

    -2. Disconnect the following connector.

    SBW shifter control module 20P connector

    -3. Turn the vehicle to the ON mode.

    -4. Measure the voltage between test points 1 and 2.

    Test condition Vehicle ON mode
      SBW shifter control module 20P connector: disconnected
    Test point 1 SBW shifter control module 20P connector No. 14
    Test point 2 Body ground

    Is there battery voltage?

    YES 

    Faulty SBW shifter control module. Replace the SBW shifter assembly .

    NO 

    The SBW shifter control module internal ATP-P line is OK. Go to step 3.

  3. Shorted wire check (ATP-P line)

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

    -2. Check for continuity between test points 1 and 2 while disconnecting following connector.

    Body control module connector A (66P)
    Test condition Vehicle OFF (LOCK) mode
      SBW shifter control module 20P connector: disconnected
    Test point 1 SBW shifter control module 20P connector No. 14
    Test point 2 Body ground

    Does continuity go away when the connector is disconnected?

    YES 

    The ATP-P wire is OK. Replace the body control module .

    NO 

    Repair a short to ground in the ATP-P wire between the SBW shifter control module and the body control module.