HYBRID CONTROL SYSTEM, Diagnostic DTC:P2532-772

DTC Code DTC Name
P2532-772 Ignition Switch Run Position Circuit High

DESCRIPTION

The power source and HV CPU processors and their functions are integrated into the power management control ECU (HV CPU). The power source CPU and HV CPU use CAN communication to communicate with each other inside the power management control ECU. The power source CPU controls the opening and closing of the IG2 relay. The HV CPU detects that the IG2 relay is stuck ON (closed) based on relay operation information received from the power source CPU via CAN communication.

DTC No. INF Code DTC Detection Condition Trouble Area
P2532 772 Voltage is still applied to IG2 terminal although an IG2 relay off command is received from the power source CPU.

  • Wire harness or connector

  • IG2 relay

  • Power management control ECU

Tech Tips

If DTC P2532-772 is stored, the vehicle will turn off.

WIRING DIAGRAM

A01NFA1E01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (+B SHORT)


    1. A01NCZNE05
      Text in Illustration
      *1

      Rear view of wire harness connector

      (to Power Management Control ECU)

      Disconnect connector A81 from the power management control ECU.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A81-1 (IG2) - Body ground Power switch off Below 1 V
      A81-2 (IG2D) - Body ground Power switch off Below 1 V
      Result
      Result Proceed to
      NG A
      OK (for LHD) B
      OK (for RHD) C

    3. Connect the power management control ECU connector.


    B

    REPLACE POWER MANAGEMENT CONTROL ECU (for LHD) Click here

    C

    REPLACE POWER MANAGEMENT CONTROL ECU (for RHD) Click here

    A

  2. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - IG2 RELAY)


    1. Disconnect connector A81 from the power management control ECU.

    2. A01NCZNE05
      Text in Illustration
      *1

      Rear view of wire harness connector

      (to Power Management Control ECU)

      Remove the IG2 relay from the engine room junction block assembly.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A81-1 (IG2) - Body ground Power switch off Below 1 V
      A81-2 (IG2D) - Body ground Power switch off Below 1 V

    4. Install the IG2 relay.

    5. Connect the power management control ECU connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE RELAY (IG2)