LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2019 >> RAV4 XLE, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 40 (Can Communication System (HV) - Circuit Tests (1 Of 6) & Diagnostic Codes) >> CAN COMMUNICATION SYSTEM (for HV Model) >> Hybrid Vehicle Control ECU Communication Stop Mode [11/2018 - 02/2019] >> Procedure

Hybrid Vehicle Control ECU Communication Stop Mode [11/2018 - 02/2019]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK FOR OPEN IN CAN BUS WIRE (HYBRID VEHICLE CONTROL ECU ASSEMBLY BRANCH WIRE) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the hybrid vehicle control ECU assembly connector.
      GTY920351Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Hybrid Vehicle Control ECU Assembly)      		 - -
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      A31-21 (CA1H) - A31-8 (CA1L) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω
      A31-7 (CA3P) - A31-20 (CA3N) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω

      Result

      Proceed to 
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR 

    Result: 

    OK 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) 
    1. Disconnect the hybrid vehicle control ECU assembly connectors.
    2. Measure the resistance according to the value(s) in the table below.
      GTY855733Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Hybrid Vehicle Control ECU Assembly)      		 - -

      Standard Resistance

      Tester Connection Condition Specified Condition
      A31-12 (E01) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω
      A31-11 (E02) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω
      A30-3 (E1) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω
      A31-34 (E12) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω
    3. Reconnect the cable to the negative (-) auxiliary battery terminal.
      NOTE:

      When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

      Refer to INITIALIZATION [11/2018 - 02/2019]

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

      Standard Voltage

      Tester Connection Condition Specified Condition
      A31-35 (IG2) - Body ground Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      A30-27 (BATT) - Body ground Power switch off 11 to 14 V
      A29-11 (+B1) - Body ground Auxiliary battery voltage applied to terminal A29-5 (MREL) 11 to 14 V
      A30-1 (+B2) - Body ground

      Result

      Proceed to 
      OK
      NG

    Result: 

    OK 

    REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY 

    Refer to REMOVAL [11/2018 - 02/2019]

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

scientia non olet · About LEMON Manuals