HYBRID CONTROL SYSTEM, Diagnostic DTC:P0617-142

DTC Code DTC Name
P0617-142 Starter Relay Circuit High

DESCRIPTION

DTC No. INF Code DTC Detection Condition Trouble Area
P0617 142 An ST signal from the hybrid vehicle control ECU is present when the power switch is off.

  • Wire harness or connector

  • Hybrid vehicle control ECU

  • Main body ECU

WIRING DIAGRAM

A000ZLDE02
*a Driver Side Junction Block (Main Body ECU)
*b Hybrid Vehicle Control ECU

PROCEDURE


  1. CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR)


    1. A000XH7E01
      *1 Hybrid Vehicle Control ECU

      Check the connections of the hybrid vehicle control ECU connectors.

      OK
      The connectors are connected securely and there are no contact problems.

    NG

    CONNECT SECURELY

    OK

  2. CHECK CONNECTOR CONNECTION CONDITION (MAIN BODY ECU CONNECTOR)


    1. A000W9JE04
      *1 Driver Side Junction Block (Main Body ECU)

      Check the connections of the main body ECU connectors.

      OK
      The connectors are connected securely and there are no contact problems.

    NG

    CONNECT SECURELY

    OK

  3. CHECK HARNESS AND CONNECTOR (ST2 TERMINAL VOLTAGE)


    1. Turn the power switch off.

    2. A000XHJE02
      *1 Component with harness connected: (Hybrid Vehicle Control ECU)

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      A78-28 (ST2) - Body ground Power switch off Below 1 V

    OK

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    NG

  4. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - MAIN BODY ECU)


    1. A000W9JE04
      *1 Driver Side Junction Block (Main Body ECU)

      Disconnect connector A68 from the driver side junction block (main body ECU).

    2. A000XHJE02
      *1 Component with harness connected: (Hybrid Vehicle Control ECU)

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      A78-28 (ST2) - Body ground Power switch off Below 1 V

    OK

    REPLACE DRIVER SIDE JUNCTION BLOCK

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR