ELECTRONIC SHIFT LEVER SYSTEM, Diagnostic DTC:P1761A2

DTC Code DTC Name
P1761A2 Gear Shift Control Module "A" System Voltage Low

DESCRIPTION

Auxiliary battery power is supplied to the BATT terminal of the shift control ECU. Back-up power is supplied even the power switch is turned off.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate
P1761A2 Gear Shift Control Module "A" System Voltage Low

With battery voltage 10 V or higher, BATT terminal voltage (ECU recognition value) is below 1 V continuously for 3 seconds or more

(1 trip detection logic)

  • Shift control ECU

  • Wire harness or connector

  • 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 power switch on (IG) and wait for 5 seconds or more.

WIRING DIAGRAM

B004C4QE03
*a R/B-B NO. 1
*b P CON MAIN
*c Auxiliary Battery
*d Shift Control ECU

CAUTION / NOTICE / HINT

Note


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

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

PROCEDURE


  1. CHECK CONNECTOR CONNECTION CONDITION (SHIFT CONTROL ECU CONNECTOR)


    1. Check the connector connections and contact pressure of the relevant terminals for the shift control ECU connectors.

      Click here

      B004B3BC01
      *1 for RHD *2 for LHD
      OK
      The connectors are connected securely and there are no contact pressure problems.
      Result
      Proceed to
      OK
      NG

    NG

    CONNECT SECURELY

    OK

  2. CHECK AUXILIARY BATTERY VOLTAGE


    1. B004B4TC07
      *a

      Front view of wire harness connector

      (to Shift Control ECU)

      Disconnect the shift control ECU connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      P75-1 (BATT) - Body ground Power switch off 8 to 15.4 V

    3. Reconnect the shift control ECU connector.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE SHIFT CONTROL ECU Click here

    NG

  3. CHECK HARNESS AND CONNECTOR (SHIFT CONTROL ECU - P CON MAIN FUSE)


    1. Disconnect the shift control ECU connector.

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

      B004AFLC03
      *1 No. 1 Engine Room Relay Block and Junction Block Assembly *2 P CON MAIN FUSE
      *a

      Front view of wire harness connector

      (to Shift Control ECU)

      		 - -

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      P CON MAIN fuse terminal 2 - P75-1 (BATT) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      P CON MAIN fuse terminal 2 or P75-1 (BATT) - Body ground Always 10 kΩ or higher

    4. Reconnect the shift control ECU connector.

    5. Install the P CON MAIN fuse.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (P CON MAIN FUSE - AUXILIARY BATTERY)


    1. B004C2MC03
      *1 No. 1 Engine Room Relay Block and Junction Block Assembly
      *2 P CON MAIN Fuse

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

    2. Disconnect the cable from the negative (-) auxiliary battery terminal.

    3. Disconnect the cable from the positive (+) auxiliary battery terminal.

    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 MAIN fuse terminal 1 - Auxiliary battery positive (+) cable Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      P CON MAIN fuse terminal 1 - Body ground Always 10 kΩ or higher

    5. Connect the cable to the positive (+) auxiliary battery terminal.

    6. Connect the cable to the negative (-) auxiliary battery terminal.

    7. Install the P CON MAIN fuse.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHARGE AUXILIARY BATTERY


    1. Charge the auxiliary battery.

      Result
      Proceed to
      NEXT

    NEXT

  6. 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.


      Powertrain > Hybrid Control > Trouble Codes

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

    5. Clear the DTCs.


      Powertrain > Hybrid Control > Clear DTCs

    6. Turn the power 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

  7. CHECK DTC OUTPUT (SIMULATION TEST)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG) and wait for 5 seconds or more.

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


      Powertrain > Hybrid Control > Trouble Codes

    4. Check if DTCs are output.

      Result
      Result Proceed to
      DTC P1761A2 is not output. A
      DTC P1761A2 is output. B

    5. Turn the power switch off.


    A

    END

    B

    REPLACE AUXILIARY BATTERY Click here