HYBRID CONTROL SYSTEM, Diagnostic DTC:P2532-772

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

DESCRIPTION

The hybrid vehicle control ECU monitors IGSW signals sent from the power source control ECU and detects the following malfunction.

DTC No. INF Code DTC Detection Condition Trouble Area
P2532 772 When IG1 information from the ECUs that are connected to terminal IG1 of the power source control ECU is interrupted, the power source voltage is still applied to terminal IGSW.

  • Wire harness or connector

  • IG2 relay

  • Main Body ECU

  • Hybrid vehicle control ECU

  • Fuse

  • Passenger side junction block

  • Driver side junction block

Tech Tips

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

WIRING DIAGRAM

A01GXUKE05

INSPECTION PROCEDURE

Tech Tips

If DTC P2532-722 is output, U0164-594, U0164-827, U0129-220, U0129-528, U0131-443, U0131-434 or U0140-146 may be output.

PROCEDURE


  1. CLEAR DTC


    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. Read and record the DTCs and freeze frame data.

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

    6. Clear DTCs and freeze frame data.


    NEXT

  2. CHECK DTC OUTPUT (HV)


    1. Leave the vehicle for 15 seconds or more with the power switch on (IG) after clearing DTCs.

      Tech Tips

      Leaving the vehicle for 15 seconds or more is required to detect DTC U0140-146.

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

    3. Check if DTCs are output.

      Result
      Result Proceed to

      Either of the following is met:


      • U0140-146 is also output.

      • U0140-146 is not output but P2532-772 is output.

      		 A
      U0140-146 and P2532-772 are output. B
      Only DTCs other than U0140-146 and P2532-772 are output. C
      No DTC is output. D

    B

    GO TO DTC CHART (U0140-146) Click here

    C

    GO TO DTC CHART Click here

    D

    CHECK DTC OUTPUT (HV) Click here

    A

  3. CHECK FUSES (D-IG1-3)


    1. A01GWLQE01

      Remove the D-IG1-3 fuse from the driver side junction block.

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      D-IG1-3 Fuse Power switch off Below 1 Ω

    NG

    REPLACE FUSES (D-IG1-3)

    OK

  4. CHECK POWER SOURCE CIRCUIT (DRIVER SIDE JUNCTION BLOCK)


    1. A01GX2CE01

      Power switch off.

    2. Remove connector DF from the driver side junction block.

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      DF-1 - Body ground Power switch off 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (DRIVER SIDE JUNCTION BLOCK - AUXILIARY BATTERY)

    OK

  5. CHECK POWER SOURCE CIRCUIT (PASSENGER SIDE JUNCTION BLOCK)


    1. A01H0MTE01

      Power switch off.

    2. Connect connector PA from the passenger side junction block.

    3. Power switch on (IG).

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      PA-53 - Body ground Power switch on (IG) 11 to 14 V

      Tech Tips

      Measure the back of the connector with the connector connected.


    NG

    CHECK CONNECTOR CONNECTION CONDITION (PASSENGER SIDE JUNCTION BLOCK)

    OK

  6. CHECK WIRE HARNESS AND CONNECTOR


    1. A01GW8YE02

      Power switch off.

    2. Remove connector DA from the driver side junction block.

    3. Power switch on (IG).

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      DA-40 - Body ground Power switch off Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE DRIVER SIDE JUNCTION BLOCK

  7. CHECK DTC OUTPUT (HV)


    1. Turn the power switch off.

    2. Leave the vehicle for 1.5 seconds or more.

      Tech Tips

      Leaving the vehicle for 1.5 seconds or more is required to detect DTC P2532-772.

    3. Power switch on (IG).

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

    5. Check if DTCs are output.

      Result
      Result Proceed to
      P2532-772 is output. A
      P2532-772 is not output. B

    B

    CHECK FOR INTERMITTENT PROBLEMS Click here

    A

  8. CHECK HYBRID VEHICLE CONTROL ECU


    1. A01H26FE06

      Turn the power switch off.

    2. Disconnect connector A76 from the hybrid vehicle control ECU.

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      A76-4 (IGSW) - Body ground Power switch off Below 1 V

    NG

    CHECK RELAY (IG2 RELAY) Click here

    OK

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

  9. CHECK RELAY (IG2 RELAY)


    1. Turn the power switch off.

    2. A01GZQ2E01

      Remove the IG2 relay from the engine room No. 2 relay block.

    3. A01H26FE06

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      A76-4 (IGSW) - Body ground Power switch off Below 1 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. INSPECT PCV RELAY (IG2 RELAY)


    1. A01GZD7E45

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

      Standard resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 130 to 235 Ω
      3 - 5 Auxiliary battery voltage is not applied between terminals 1 and 2. 10 kΩ or higher
      Auxiliary battery voltage is applied between terminals 1 and 2. Below 1 Ω

    NG

    REPLACE RELAY (IG2 RELAY)

    OK

  11. CHECK HARNESS AND CONNECTOR (DRIVER SIDE JUNCTION BLOCK - IG2 RELAY)


    1. Turn the power switch off.

    2. A01GXVWE01

      Disconnect connector L12 from the driver side junction block.

    3. A01GWLUE01

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      Engine room No. 2 relay block IG2 relay terminal 1 - Body ground Power switch off Below 1 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE DRIVER SIDE JUNCTION BLOCK