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. 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. 1 integration relay (IG2 relay)

  • Power management control ECU

Tech Tips

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

WIRING DIAGRAM

A0004W5E02
*a ECU-IG2 NO. 3
*b No. 1 Integration Relay
*c Power Management Control ECU

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (+B SHORT)


    1. A00042OE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)

      Disconnect the A33 power management control ECU connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A33-1 (IG2) - Body ground Power switch off 1 V or less
      A33-2 (IG2D) - Body ground Power switch off 1 V or less
      Result
      Result Proceed to
      NG A
      OK B

    3. Reconnect the A33 power management control ECU connector.


    B

    REPLACE POWER MANAGEMENT CONTROL ECU Click here

    A

  2. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - NO. 1 INTEGRATION RELAY)


    1. Disconnect the A33 power management control ECU connector.

    2. A00042OE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)

      Remove the No. 1 integration relay from the engine room relay block and junction block assembly.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A33-1 (IG2) - Body ground Power switch off 1 V or less
      A33-2 (IG2D) - Body ground Power switch off 1 V or less

    4. Install the No. 1 integration relay.

    5. Reconnect the A33 power management control ECU connector.


    OK

    REPLACE NO. 1 INTEGRATION RELAY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR