CAN COMMUNICATION SYSTEM (for LHD) Hybrid Vehicle Control ECU Communication Stop Mode

DESCRIPTION

Detection Item Symptom Trouble Area
Hybrid Vehicle Control ECU Communication Stop Mode

Either condition is met:


  • "Hybrid Vehicle Control" is not displayed on the "Bus Check" screen.

  • "Hybrid Vehicle Control ECU Communication Stop Mode" in "DTC Communication Table" applies.

  • Power source or inside of hybrid vehicle control ECU

  • Hybrid vehicle control ECU

WIRING DIAGRAM

A01GW7ME02

INSPECTION PROCEDURE

Note

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - BATTERY AND BODY GROUND)


    1. Disconnect the hybrid vehicle control ECU connectors.

      A01GXG3E09
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Hybrid Vehicle Control ECU)

      		 - -

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A76-1 (BATT) - Body ground Always 11 to 14 V
      A76-4 (IGSW) - Body ground Power switch on (IG) 11 to 14 V
      A78-1 (+B1) - Body ground Power switch on (IG) 11 to 14 V
      A78-2 (+B2) - Body ground Power switch on (IG) 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A77-7 (E1) - Body ground Always Below 1 Ω
      A77-6 (E12) - Body ground Always Below 1 Ω
      E58-7 (GND1) - Body ground Always Below 1 Ω
      E58-6 (GND2) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE HYBRID VEHICLE CONTROL ECU Click here