ELECTRONIC SHIFT LEVER SYSTEM, Diagnostic DTC:P1C8F14, P1C9414, P1C9914

DTC Code DTC Name
P1C8F14 Park Pawl Motor Phase U Circuit Short to Ground or Open
P1C9414 Park Pawl Motor Phase V Circuit Short to Ground or Open
P1C9914 Park Pawl Motor Phase W Circuit Short to Ground or Open

DESCRIPTION

The shift control actuator assembly consists of a parking lock motor, range sensor and rotation angle sensor. The shift control ECU receives shift lever position signals from the shift lever position sensor (transmission floor shift assembly) and P position switch signal from the P position switch (shift position indicator) to operate the parking lock motor through current control to engage and release the parking lock. When the shift control ECU detects a malfunction in the parking lock motor system, the DTC is stored in the ECM.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P1C8F14 Park Pawl Motor Phase U Circuit Short to Ground or Open

Even though the P CON MTR relay or P CON MTR2 relay operation permission signal is ON, the parking lock motor U phase terminal voltage (ECU recognition AD value) is continuously below 0.2 V for 1 second or more when the battery voltage and the sub-battery voltage are 10 V or higher with the engine switch on (IG).

(1 trip detection logic)

  • Battery

  • Sub-battery module assembly

  • Shift control ECU

  • Shift control actuator assembly

  • P CON MTR relay

  • P CON MTR2 relay

  • Wire harness or connector

 Does not come on

  • Master Warning Light


    • Comes on

  • Multi-information Display Error Message


    • Displayed
P1C9414 Park Pawl Motor Phase V Circuit Short to Ground or Open

Even though the P CON MTR relay or P CON MTR2 relay operation permission signal is ON, the parking lock motor V phase terminal voltage (ECU recognition AD value) is continuously below 0.2 V for 1 second or more when the battery voltage and the sub-battery voltage are 10 V or higher with the engine switch on (IG).

(1 trip detection logic)

  • Battery

  • Sub-battery module assembly

  • Shift control ECU

  • Shift control actuator assembly

  • P CON MTR relay

  • P CON MTR2 relay

  • Wire harness or connector

 Does not come on

  • Master Warning Light


    • Comes on

  • Multi-information Display Error Message


    • Displayed
P1C9914 Park Pawl Motor Phase W Circuit Short to Ground or Open

Even though the P CON MTR relay or P CON MTR2 relay operation permission signal is ON, the parking lock motor W phase terminal voltage (ECU recognition AD value) is continuously below 0.2 V for 1 second or more when the battery voltage and the sub-battery voltage are 10 V or higher with the engine switch on (IG).

(1 trip detection logic)

  • Battery

  • Sub-battery module assembly

  • Shift control ECU

  • Shift control actuator assembly

  • P CON MTR relay

  • P CON MTR2 relay

  • Wire harness or connector

 Does not come on

  • Master Warning Light


    • Comes on

  • Multi-information Display Error Message


    • Displayed

CONFIRMATION DRIVING PATTERN

Tech Tips

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the All Readiness check procedure.

Click here


  1. Turn the engine switch on (IG)

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

  3. Push the P position switch (shift position indicator) to select park (P).

WIRING DIAGRAM

B000VTQE04

CAUTION / NOTICE / HINT

Note


  • After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

    Click here

  • The vehicle is equipped with a sub-battery. Therefore, ensure there is no power being supplied to the vehicle when disconnecting or reconnecting the connector of the shift control ECU and when removing or installing the shift control ECU.

    Click here

  • The fail-safe function turns the shift control actuator power source relay off when P1C8F14, P1C9414 or P1C9914 is output.

  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. CHECK DTC OUTPUT (TRANSMISSION)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Enter the following menus: Powertrain / Transmission / Trouble Codes.


      Powertrain > Transmission > Trouble Codes

    4. Check if DTCs are output.

      Result
      Result Proceed to
      DTC P1C8F14, P1C9414 and P1C9914 are output simultaneously. A
      Only DTC P1C8F14, P1C9414 or P1C9914 is output. B

      Tech Tips


      • If DTCs P1C8F14, P1C9414 and P1C9914 are stored at the same time, there may be a malfunction in the parking lock motor (BMA signal) power source circuit.

      • If only DTC P1C8F14, P1C9414 or P1C9914 is stored, there may be a malfunction in the parking lock motor (MUA, MVA or MWA signal) circuit

    5. Turn the engine switch off.


    B

    GO TO STEP 8 Click here

    A

  2. CHECK HARNESS AND CONNECTOR (P CON MTR RELAY POWER SOURCE CIRCUIT)


    1. Remove the P CON MTR relay from the No. 1 engine room relay block and junction block assembly.

      B000UGYC01
      *A for RHD *B for LHD
      *1 No. 1 Engine Room Relay Block and Junction Block Assembly *2 P CON MTR Relay

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      P CON MTR relay terminal 3 or 2 - Body ground Engine switch off 8 to 15.4 V

    3. Install the P CON MTR relay.

      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (BATTERY - P CON MTR RELAY) Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (P CON MTR2 RELAY POWER SOURCE CIRCUIT)


    1. B000TONC02
      *1 No. 2 Luggage Room Relay Block Assembly
      *2 P CON MTR2 Relay

      Remove the P CON MTR2 relay from the No. 2 luggage room relay block assembly.

    2. Turn the engine switch on (IG).

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      P CON MTR2 relay terminal 3 or 2 - Body ground 5 seconds after turning the engine switch on (IG) 8 to 15.4 V

      Note

      Power is supplied from the sub-battery module assembly for only 5 seconds after the engine switch is turned on (IG). Therefore, measure the voltage during that time.

    4. Turn the engine switch off.

    5. Install the P CON MTR2 relay.

      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (SUB-BATTERY MODULE ASSEMBLY - P CON MTR2 RELAY) Click here

    OK

  4. INSPECT P CON MTR RELAY


    1. Remove the P CON MTR relay from the No. 1 engine room relay block and junction block assembly.

      B000VIHC01
      *A for RHD *B for LHD
      *1 No. 1 Engine Room Relay Block and Junction Block Assembly *2 P CON MTR Relay
    2. B000VATC02
      *1 P CON MTR Relay

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 - 5 Battery voltage not applied between terminals 1 and 2 10 kΩ or higher
      Battery voltage applied between terminals 1 and 2 Below 1 Ω

    3. Install the P CON MTR relay.

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE P CON MTR RELAY

    OK

  5. INSPECT P CON MTR2 RELAY


    1. B000Z1NC02
      *1 No. 2 Luggage Room Relay Block Assembly
      *2 P CON MTR2 Relay

      Remove the P CON MTR2 relay from the No. 2 luggage room relay block assembly.

    2. B000VATC02
      *1 P CON MTR2 Relay

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 - 5 Battery voltage not applied between terminals 1 and 2 10 kΩ or higher
      Battery voltage applied between terminals 1 and 2 Below 1 Ω

    3. Install the P CON MTR2 relay.

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE P CON MTR2 RELAY

    OK

  6. CHECK HARNESS AND CONNECTOR (PARKING LOCK MOTOR (SHIFT CONTROL ACTUATOR ASSEMBLY) - P CON MTR RELAY, P CON MTR2 RELAY)


    1. Remove the P CON MTR relay from the No. 1 engine room relay block and junction block assembly.

    2. Remove the P CON MTR2 relay from the No. 2 luggage room relay block assembly.

    3. Disconnect the G41 parking lock motor (shift control actuator assembly) connector.

    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      P CON MTR relay terminal 5 - G41-7(BMA) Always Below 1 Ω
      P CON MTR2 relay terminal 5 - G41-7(BMA) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      P CON MTR relay terminal 5 or G41-7(BMA) - Body ground and other terminals (except P CON MTR2 relay terminal 5) Always 10 kΩ or higher
      P CON MTR2 relay terminal 5 or G41-7(BMA) - Body ground and other terminals (except P CON MTR relay terminal 5) Always 10 kΩ or higher

    5. Reconnect the G41 parking lock motor (shift control actuator assembly) connector.

    6. Install the P CON MTR2 relay.

    7. Install the P CON MTR relay.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK HARNESS AND CONNECTOR (SHIFT CONTROL ECU - P CON MTR RELAY, P CON MTR2 RELAY)


    1. Disconnect the A53 and P74 shift control ECU connectors.

    2. Remove the P CON MTR relay from the No. 1 engine room relay block and junction block assembly.

    3. Remove the P CON MTR2 relay from the No. 2 luggage room relay block assembly.

    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      A53-12(BMA1) - P CON MTR relay terminal 1 Always Below 1 Ω
      P74-24(BMA2) - P CON MTR2 relay terminal 1 Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      A53-12(BMA1) or P CON MTR relay terminal 1 - Body ground and other terminals Always 10 kΩ or higher
      P74-24(BMA2) or P CON MTR2 relay terminal 1 - Body ground and other terminals Always 10 kΩ or higher

    5. Install the P CON MTR relay.

    6. Install the P CON MTR2 relay.

    7. Reconnect the A53 and P74 shift control ECU connectors.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. CHECK HARNESS AND CONNECTOR (SHIFT CONTROL ECU - PARKING LOCK MOTOR (SHIFT CONTROL ACTUATOR ASSEMBLY))


    1. Disconnect the A53 shift control ECU connector.

    2. Disconnect the G41 parking lock motor (shift control actuator assembly) connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      A53-5(MUA) - G41-2(MUA) Always Below 1 Ω
      A53-2(MVA) - G41-6(MVA) Always Below 1 Ω
      A53-1(MWA) - G41-1(MWA) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      A53-5(MUA) or G41-2(MUA) - Body ground and other terminals Always 10 kΩ or higher
      A53-2(MVA) or G41-6(MVA) - Body ground and other terminals Always 10 kΩ or higher
      A53-1(MWA) or G41-1(MWA) - Body ground and other terminals Always 10 kΩ or higher

    4. Reconnect the G41 parking lock motor (shift control actuator assembly) connector.

    5. Reconnect the A53 shift control ECU connector.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. INSPECT PARKING LOCK MOTOR (SHIFT CONTROL ACTUATOR ASSEMBLY)


    1. B000V5KC03
      *1 Parking Lock Motor (Shift Control Actuator Assembly)

      Disconnect the parking lock motor (shift control actuator assembly) connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      2(MUA) - 7(BMA) Always 0.5 to 2 Ω
      6(MVA) - 7(BMA) Always 0.5 to 2 Ω
      1(MWA) - 7(BMA) Always 0.5 to 2 Ω
      2(MUA) - 6(MVA) Always 1 to 4 Ω
      6(MVA) - 1(MWA) Always 1 to 4 Ω
      1(MWA) - 2(MUA) Always 1 to 4 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      2(MUA) - Body ground Always 10 kΩ or higher
      6(MVA) - Body ground Always 10 kΩ or higher
      1(MWA) - Body ground Always 10 kΩ or higher

    3. Reconnect the parking lock motor (shift control actuator assembly) connector.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE SHIFT CONTROL ECU Click here

    NG

    REPLACE SHIFT CONTROL ACTUATOR ASSEMBLY Click here

  10. CHECK HARNESS AND CONNECTOR (SUB-BATTERY MODULE ASSEMBLY - P CON MTR2 RELAY)


    1. Disconnect the b7 positive (+) terminal from the sub-battery module assembly.

      Click here

    2. Remove the P CON MTR2 relay from the No. 2 luggage room relay block assembly.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      b7-1(+BAT) - P CON MTR2 relay terminal 3 or 2 Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      b7-1(+BAT) or P CON MTR2 relay terminal 3 or 2 - Body ground and other terminals Always 10 kΩ or higher

    4. Install the P CON MTR2 relay.

    5. Reconnect the b7 positive (+) terminal to the sub-battery module assembly.

      Result
      Proceed to
      OK
      NG

    OK

    CHECK SUB BATTERY SYSTEM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  11. CHECK HARNESS AND CONNECTOR (BATTERY - P CON MTR RELAY)


    1. Disconnect the cable from the negative (-) battery terminal.

    2. Disconnect the cable from the positive (+) battery terminal.

    3. Remove the P CON MTR relay from the No. 1 engine room relay block and junction block assembly.

    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      Battery positive (+) cable - P CON MTR relay terminal 3 or 2 Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      Battery positive (+) cable or P CON MTR relay terminal 3 or 2 - Body ground and other terminals Always 10 kΩ or higher

    5. Install the P CON MTR relay.

    6. Reconnect the cable to the positive (+) battery terminal.

    7. Reconnect the cable to the negative (-) battery terminal.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  12. CHARGE BATTERY


    1. Charge the battery.

      Result
      Proceed to
      NEXT

    NEXT

  13. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Enter the following menus: Powertrain / Transmission / Trouble Codes.


      Powertrain > Transmission > Trouble Codes

    4. Check for DTCs and freeze frame data and then write them down.

    5. Clear the DTCs.


      Powertrain > Transmission > Clear DTCs

    6. Turn the engine switch off.

    7. Disconnect the GTS from the DLC3.

    8. 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

  14. CHECK DTC OUTPUT (SIMULATION TEST)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG) and wait for 10 seconds or more.

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

    4. Push the P position switch (shift position indicator) to select park (P).

    5. Enter the following menus: Powertrain / Transmission / Trouble Codes.


      Powertrain > Transmission > Trouble Codes

    6. Check if DTCs are output.

      Result
      Result Proceed to
      DTCs P1C8F14, P1C9414 and P1C9914 are not output. A
      DTCs P1C8F14, P1C9414 and P1C9914 are output. B

    7. Turn the engine switch off.


    A

    END

    B

    REPLACE BATTERY Click here