HYBRID CONTROL SYSTEM, Diagnostic DTC:P2519-766

DTC Code DTC Name
P2519-766 A/C Request "A" Circuit

DESCRIPTION

The hybrid vehicle converter sends IDH signals to the hybrid vehicle control ECU to inform the ECU of the cooling requirement and output current control due to high temperature of the hybrid vehicle converter.

DTC No. INF Code DTC Detection Condition Trouble Area
P2519 766 Malfunction in the cooling fan operation requirement signal circuit

  • Battery smart unit

  • Hybrid vehicle converter

  • Wire harness or connector

WIRING DIAGRAM

A01H0CYE03

INSPECTION PROCEDURE

CAUTION:


  • Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.

  • After disconnecting the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.

Tech Tips

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

PROCEDURE


  1. CHECK DTC OUTPUT (HV)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

    4. Check if DTCs are output.

      Result
      Result Proceed to
      P2519-766 only is output. A
      P0AE6-225 is output. B

    B

    GO TO DTC CHART (P0AE6-225) Click here

    A

  2. CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL CONVERTER CONNECTOR)

    CAUTION:

    Be sure to wear insulated gloves.


    1. Turn the power switch off.

    2. Remove the service plug grip Click here.

      Note

      After removing the service plug grip, do not turn the power switch on (READY) unless instructed by the repair manual because this may cause a malfunction.

    3. A01H1FE
      A01H1W0

      Check the connection of the low voltage connector of the hybrid vehicle converter.

      OK
      The connector is connected securely and there are no contact problems.

      Tech Tips

      For the removal and installation procedures related to inspection of the connection of the low voltage connector of the hybrid vehicle converter, Click here.


    NG

    CONNECT SECURELY

    OK

  3. CHECK CONNECTOR CONNECTION CONDITION (BATTERY SMART UNIT CONNECTOR)


    1. A01GYFF

      Check the connection of the battery smart unit connector.

      OK
      The connector is connected securely and there are no contact problems.

      Tech Tips

      It is necessary to move the HV battery to access the hybrid vehicle converter connector. For the removal and installation procedures related to inspection of the connection of the battery smart unit connector, Click here.


    NG

    CONNECT SECURELY

    OK

  4. CHECK BATTERY SMART UNIT

    CAUTION:

    Be sure to wear insulated gloves.


    1. Check that the service plug grip is not installed.

    2. With the battery in an accessible position, connect the battery smart unit and hybrid vehicle converter connectors.

    3. A01GZC6

      Connect the 2 floor wires to the luggage room junction block assembly.

    4. Insulate the AMD terminal of the removed wire with insulating tape to prevent a short to body ground.

    5. A01H1YGE02
      A01H29WE02

      Connect the battery pack wire connectors.

      Tech Tips

      Connecting the battery pack wire connectors will allow power to be supplied to the battery smart unit when the power switch is turned on (IG).

    6. A01GWN6E02

      Disconnect the low voltage connector from the hybrid vehicle converter.

    7. Turn the power switch on (IG).

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      z82-5 (IDH) - Body ground Power switch on (IG) 4.5 to 5.5 V

    NG

    CHECK HARNESS AND CONNECTOR (BATTERY SMART UNIT - HYBRID VEHICLE CONVERTER) Click here

    OK

    REPLACE HV CONVERTER Click here

  5. CHECK HARNESS AND CONNECTOR (BATTERY SMART UNIT - HYBRID VEHICLE CONVERTER)

    CAUTION:

    Be sure to wear insulated gloves.


    1. Turn the power switch off.

    2. Check that the service plug grip is not installed.

    3. A01GYURE02

      Disconnect connector z36 from the battery smart unit.

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

      Standard resistance (Check for open)
      Tester Connection Switch Condition Specified Condition
      z36-4 (IDH) - z82-5 (IDH) Power switch off Below 1 Ω
      Standard resistance (Check for short)
      Tester Connection Switch Condition Specified Condition
      z36-4 (IDH) or z82-5 (IDH) - Body ground and other terminals Power switch off 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE BATTERY SMART UNIT Click here