HYBRID CONTROL SYSTEM, Diagnostic DTC:P0560-117

DTC Code DTC Name
P0560-117 System Voltage

DESCRIPTION

Battery power is constantly supplied to the BATT terminal of the hybrid vehicle control ECU to allow DTCs and freeze frame data to be retained in memory even though the power switch is turned off. The back-up power is supplied even when the power switch is off.

DTC No. INF Code DTC Detection Condition Trouble Area
P0560 117 Malfunction in the hybrid vehicle control ECU back-up power source circuit

  • Wire harness or connector

  • Hybrid vehicle control ECU

  • Fuse

WIRING DIAGRAM

A000W12E02
*a MAIN
*b Auxiliary Battery
*c 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 HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - IGCT2 FUSE)


    1. A000TZCE02
      *1 Component with harness connected: (Hybrid Vehicle Control ECU)

      Turn the power switch off.

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      A76-1 (BATT) - A77-7 (E1) Power switch off 11 to 14 V

    OK

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    NG

  3. CHECK FUSES (IGCT2 FUSE)


    1. A000YAZE03
      *1 Engine Room No. 2 Relay Block
      *2 IGCT2 Fuse

      Check if there is an open circuit in the fuse (IGCT2) in the engine room No. 2 relay block.

      OK
      There is no open circuit in the fuse (IGCT2).

    NG

    REPLACE FUSES (IGCT2)

    OK

  4. CHECK HARNESS AND CONNECTOR (IGCT2 FUSE - BATTERY POSITIVE TERMINAL)


    1. Disconnect the auxiliary battery negative terminal cable.

    2. Disconnect the auxiliary battery positive terminal cable.

    3. A000VWEE01
      *1 Engine Room No. 2 Relay Block
      *2 IGCT2 Fuse

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

      Standard resistance (Check for open)
      Tester Connection Switch Condition Specified Condition
      Engine room No. 2 relay block IGCT2 fuse terminal 1 - Positive (+) battery terminal Power switch off Below 1 Ω
      Standard resistance (Check for short)
      Tester Connection Switch Condition Specified Condition
      Engine room No. 2 relay block IGCT2 fuse terminal 1 - Body ground Power switch off 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (IGCT2 FUSE - HYBRID VEHICLE CONTROL ECU)


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

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

      A000TERE02
      *1 Rear view of wire harness connector: (to Hybrid Vehicle Control ECU)
      *2 Engine Room No. 2 Relay Block
      *3 IGCT2 Fuse
      Standard resistance
      Tester Connection Switch Condition Specified Condition
      Engine room No. 2 relay block IGCT2 fuse terminal 2 - A76-1 (BATT) Power switch off Below 1 Ω

    OK

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR