HYBRID CONTROL SYSTEM, Diagnostic DTC:P2602-767

DTC Code DTC Name
P2602-767 Oil Pump Control Circuit Low

DESCRIPTION

Refer to the description for DTC P2601-777 Click here.

DTC No. INF Code DTC Detection Condition Trouble Area
P2602 767

  • GND short in oil pump circuit

  • When OPM2 signal is on, OPST signal remains low

  • Wire harness or connector

  • Oil pump with motor assembly

  • Power management control ECU

WIRING DIAGRAM

Refer to the wiring diagram for DTC P2601-777 Click here.

INSPECTION PROCEDURE

Tech Tips

When troubleshooting the oil pump with motor assembly, check for the following conditions.


  • ATF temperature inside the oil cooler is 5°C (41°F) or more.

  • The ambient temperature sensor value is 5°C (41°F) or more.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - OIL PUMP WITH MOTOR ASSEMBLY)


    1. Disconnect the A75 connector from the oil pump with motor assembly.

    2. Disconnect the A80 connector from the power management control ECU.

    3. A01NDSUE02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Oil Pump with Motor Assembly)
      *2

      Rear view of wire harness connector

      (to Power Management Control ECU)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A80-34 (OPST) - Body ground Power switch off 10 kΩ or higher

    4. Connect the power management control ECU connector.

    5. Connect the oil pump with motor assembly connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT OIL PUMP WITH MOTOR ASSEMBLY


    1. Disconnect the A75 connector from the oil pump with motor assembly.

    2. A01NFI0E02
      Text in Illustration
      *1

      Component without harness connected

      (Oil Pump with Motor Assembly)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A75-2 (OPST) - Body ground Power switch off 10 kΩ or higher
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    3. Connect the oil pump with motor assembly connector.


    B

    REPLACE POWER MANAGEMENT CONTROL ECU (for RHD) Click here

    C

    REPLACE OIL PUMP WITH MOTOR ASSEMBLY Click here

    A

    REPLACE POWER MANAGEMENT CONTROL ECU (for LHD) Click here