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

  • No. 2 integration relay (IG2 relay)

  • Power management control ECU

Tech Tips

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

WIRING DIAGRAM

A004XEWE03
*a No. 2 Integration Relay
*b Power Management Control ECU

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (+B SHORT)


    1. A004VYVE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)

      Disconnect connector A20 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
      A20-1 (IG2) - Body ground Power switch off Below 1 V
      A20-2 (IG2D) - Body ground Power switch off Below 1 V
      Result
      Result Proceed to
      NG A
      OK B

    3. Connect the power management control ECU connector.


    B

    REPLACE POWER MANAGEMENT CONTROL ECU Click here

    A

  2. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - NO. 2 INTEGRATION RELAY)


    1. Disconnect connector A20 from the power management control ECU.

    2. A004VYVE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)

      Remove the No. 2 integration 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
      A20-1 (IG2) - Body ground Power switch off Below 1 V
      A20-2 (IG2D) - Body ground Power switch off Below 1 V

    4. Install the No. 2 integration relay.

    5. Connect the power management control ECU connector.


    OK

    REPLACE NO. 2 INTEGRATION RELAY

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR