HYBRID CONTROL SYSTEM, Diagnostic DTC:P272C81

DTC Code DTC Name
P272C81 Park Pawl Motor Invalid Serial Data Received

DESCRIPTION

The hybrid vehicle control ECU receives signals from the P position switch and shift lever and operates the shift control actuator assembly through current control to engage and release the parking lock. If the actual shift state and requested shift state do not match, the hybrid vehicle control ECU detects the malfunction and stores this DTC.

B004PH6E01
DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P272C81 Park Pawl Motor Invalid Serial Data Received

With the power switch on (IG), the actual shift state and requested shift state do not match for 5 seconds or more.

(1 trip detection logic)

  • Hybrid vehicle control ECU

  • Auxiliary battery

 Does not come on

Master Warning Light:

Comes on

CONFIRMATION DRIVING PATTERN

Tech Tips

After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

Click here


  1. Connect the GTS to the DLC3.

  2. Turn the power switch on (IG) and turn the GTS on.

  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  4. Turn the power switch off and wait for 2 minutes or more.

  5. Turn the power switch on (IG) and turn the GTS on.

  6. Depress the brake pedal and move the shift lever to select neutral (N).

  7. Push the P position switch (transmission shift main switch).

  8. Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.

  9. Check the DTC judgment result.

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE or N/A, perform driving pattern again.

PROCEDURE


  1. CHECK DTC OUTPUT (HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Check if DTCs are output.


      Powertrain > Hybrid Control > Trouble Codes
      Result
      Result Proceed to
      None of the DTCs in the table below are output. A
      Any of the DTCs in the table below are output. B
      Relevant DTC
      P060647 Hybrid/EV Powertrain Control Module Processor Watchdog / Safety MCU Failure
      P060A29 Hybrid/EV Powertrain Control Module Monitoring Processor Signal Invalid
      P060A44 Hybrid/EV Powertrain Control Module Monitoring Processor Data Memory Failure
      P060A45 Hybrid/EV Powertrain Control Module Monitoring Processor Program Memory Failure
      P060A47 Hybrid/EV Powertrain Control Module Monitoring Processor Watchdog / Safety MCU Failure
      P060A49 Hybrid/EV Powertrain Control Module Monitoring Processor Internal Electronic Failure
      P06881F ECM/PCM Power Relay Sense Circuit Intermittent

    5. Turn the power switch off.


    B

    GO TO DTC CHART (HYBRID CONTROL SYSTEM) Click here

    A

  2. CHECK FREEZE FRAME DATA (HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Release the brake pedal and turn the power switch on (IG).

      Tech Tips

      Do not turn the power switch on (READY).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.


      Powertrain > Hybrid Control > DTC(P272C81) > Freeze Frame Data
      Tester Display
      BATT Voltage for Transmission Control System

    4. Read the freeze frame data of DTC P272C81.

      Result
      Result Proceed to
      The value of BATT Voltage for Transmission Control System is 9 V or more A
      The value of BATT Voltage for Transmission Control System is less than 9 V B

    5. Turn the power switch off.


    B

    REPLACE AUXILIARY BATTERY Click here

    A

  3. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Clear the DTCs.


      Powertrain > Hybrid Control > Clear DTCs

    5. Disconnect the GTS from the DLC3.

    6. Turn the power switch off.

    7. Leave the vehicle as is for 60 seconds or more.

      Note


      • Do not connect the GTS.

      • Do not depress brake pedal.

      • Do not open/close any of the doors.

      Result
      Proceed to
      NEXT

    NEXT

  4. DTC OUTPUT (HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Check for DTCs again.


      Powertrain > Hybrid Control > Trouble Codes

    5. Turn the power switch off.

      Result
      Proceed to
      NEXT

    NEXT

  5. CHARGE AUXILIARY BATTERY


    1. Charge the auxiliary battery.

      Result
      Proceed to
      NEXT

    NEXT

  6. CHECK DTC OUTPUT (SIMULATION TEST)


    1. Connect the GTS to the DLC3.

    2. Release the brake pedal and turn the power switch on (IG).

      Tech Tips

      Do not turn the power switch on (READY).

    3. Depress the brake pedal and move the shift lever to select neutral (N).

    4. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    5. Check if DTCs are output.


      Powertrain > Hybrid Control > Trouble Codes
      Result
      Result Proceed to
      P272C81 is output A
      P272C81 is not output B

    6. Turn the power switch off.


    A

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    B

    END (AUXILIARY BATTERY WAS INSUFFICIENTLY CHARGED)