LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2015 >> Avalon Hybrid Limited >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Can Communication System (W/ Central Gateway Ecu) - Circuit Tests - (Hybrid) >> CAN COMMUNICATION SYSTEM (w/ Central Gateway ECU) >> Circuit Tests >> Check Bus 5 Line for Short to +B [10/2015 - ] >> Procedure

Check Bus 5 Line for Short to +B [10/2015 - ]: Procedure

  1. CONFIRM MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      for Models with Blind Spot Monitor System or Parking Assist Monitor System A
      for Models without Blind Spot Monitor System and Parking Assist Monitor System B

    Result: 

    B 

    See step  6

    Result: 

    A 

    See step  2

  2. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 7 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the D132 No. 7 CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY591984Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 CAN Junction Connector)      		 *b to No. 5 CAN Junction Connector
      *c to Millimeter Wave Radar Sensor Assembly *d to Forward Recognition Camera
      *e to Driving Support ECU Assembly *f to Central Gateway ECU

      Standard Resistance

      Tester Connection Condition Specified Condition Connected to
      D132-1 (CANH) - D28-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher No. 5 CAN junction connector
      D132-11 (CANL) - D28-16 (BAT)
      D132-2 (CANH) - D28-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher Millimeter wave radar sensor assembly*
      D132-12 (CANL) - D28-16 (BAT)
      D132-3 (CANH) - D28-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher Forward recognition camera*
      D132-13 (CANL) - D28-16 (BAT)
      D132-8 (CANH) - D28-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher Driving support ECU assembly*
      D132-18 (CANL) - D28-16 (BAT)
      D132-10 (CANH) - D28-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher Central gateway ECU
      D132-20 (CANL) - D28-16 (BAT)
      • *: w/ Toyota Safety Sense

      Result

      Result Proceed to
      OK A
      NG (No. 5 CAN junction connector main line) B
      NG (Central gateway ECU main line) C
      NG (ECU or sensor branch line) D

    Result: 

    A 

    REPLACE NO. 7 CAN JUNCTION CONNECTOR 

    Result: 

    C 

    See step  4

    Result: 

    D 

    See step  5

    Result: 

    B 

    See step  3

  3. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 5 CAN JUNCTION CONNECTOR) 
    1. Disconnect the O21 No. 5 CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY591987Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 5 CAN Junction Connector)      		 *b to Rear Television Camera Assembly
      *c to Hybrid Vehicle Control ECU Assembly *d to Blind Spot Monitor Sensor LH
      *e to No. 7 CAN Junction Connector - -

      Standard Resistance

      Tester Connection Condition Specified Condition Connected to
      O21-7 (CANH) - D28-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher Rear television camera assembly*1
      O21-17 (CANL) - D28-16 (BAT)
      O21-8 (CANH) - D28-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher Hybrid vehicle control ECU assembly
      O21-18 (CANL) - D28-16 (BAT)
      O21-9 (CANH) - D28-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher Blind spot monitor sensor LH*2
      O21-19 (CANL) - D28-16 (BAT)
      O21-10 (CANH) - D28-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher No. 7 CAN junction connector
      O21-20 (CANL) - D28-16 (BAT)
      • *1: w/ Parking Assist Monitor System
      • *2: w/ Blind Spot Monitor System

      Result

      Result Proceed to
      OK A
      NG (No. 7 CAN junction connector main line) B
      NG (ECU or sensor branch line) C

    Result: 

    A 

    REPLACE NO. 5 CAN JUNCTION CONNECTOR 

    Result: 

    B 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - NO. 5 CAN JUNCTION CONNECTOR) 

    Result: 

    C 

    See step  5

  4. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 7 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU) 
    1. Disconnect the D129 central gateway ECU connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY546661Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Central Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      D129-15 (CA5H) - D129-1 (BATT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      D129-16 (CA5L) - D129-1 (BATT)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU. Refer to  REMOVAL [10/2015 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU) 

  5. CHECK FOR SHORT TO +B IN CAN BUS LINE (ECU, SENSOR) 
    1. Reconnect all wire harness connectors.
    2. Disconnect the ECU or sensor connected to the CAN bus line that is shorted to +B.

      HINT: 

      If the ECU or sensor has multiple connectors, disconnect the connector that includes the CAN bus lines. To determine the ECU or sensor that is connected to the shorted bus line, refer to Terminals of ECU.

      Refer to TERMINALS OF ECU [10/2015 - ]

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      D129-15 (CA5H) - D129-1 (BATT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      D129-16 (CA5L) - D129-1 (BATT)
      GTY572036Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU)

      HINT: 

      If the resistance changes to 6 kΩ or higher when the connector is disconnected from the ECU or sensor, there may be a short in the ECU or sensor.

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CORRESPONDING ECU OR SENSOR 

    Result: 

    NG 

    REPAIR OR REPLACE CORRESPONDING ECU OR SENSOR BUS LINE OR CONNECTOR 

  6. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 7 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the D132 No. 7 CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY591991Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 CAN Junction Connector)      		 *b to Millimeter Wave Radar Sensor Assembly
      *c to Forward Recognition Camera *d to Driving Support ECU Assembly
      *e to Hybrid Vehicle Control ECU Assembly *f to Central Gateway ECU

      Standard Resistance

      Tester Connection Condition Specified Condition Connected to
      D132-2 (CANH) - D28-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher Millimeter wave radar sensor assembly*
      D132-12 (CANL) - D28-16 (BAT)
      D132-3 (CANH) - D28-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher Forward recognition camera*
      D132-13 (CANL) - D28-16 (BAT)
      D132-8 (CANH) - D28-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher Driving support ECU assembly*
      D132-18 (CANL) - D28-16 (BAT)
      D132-9 (CANH) - D28-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher Hybrid vehicle control ECU assembly
      D132-19 (CANL) - D28-16 (BAT)
      D132-10 (CANH) - D28-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher Central gateway ECU
      D132-20 (CANL) - D28-16 (BAT)
      • *: w/ Toyota Safety Sense

      Result

      Result Proceed to
      OK A
      NG (Central gateway ECU main line) B
      NG (ECU or sensor branch line) C

    Result: 

    A 

    REPLACE NO. 7 CAN JUNCTION CONNECTOR 

    Result: 

    C 

    See step  8

    Result: 

    B 

    See step  7

  7. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 7 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU) 
    1. Disconnect the D129 central gateway ECU connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY546662Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Central Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      D129-15 (CA5H) - D129-1 (BATT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      D129-16 (CA5L) - D129-1 (BATT)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU. Refer to  REMOVAL [10/2015 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU) 

  8. CHECK FOR SHORT TO +B IN CAN BUS LINE (ECU, SENSOR) 
    1. Reconnect all wire harness connectors.
    2. Disconnect the ECU or sensor connected to the CAN bus line that is shorted to +B.

      HINT: 

      If the ECU or sensor has multiple connectors, disconnect the connector that includes the CAN bus lines. To determine the ECU or sensor that is connected to the shorted bus line, refer to Terminals of ECU.

      Refer to TERMINALS OF ECU [10/2015 - ]

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      D129-15 (CA5H) - D129-1 (BATT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      D129-16 (CA5L) - D129-1 (BATT)
      GTY572036Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU)

      HINT: 

      If the resistance changes to 6 kΩ or higher when the connector is disconnected from the ECU or sensor, there may be a short in the ECU or sensor.

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CORRESPONDING ECU OR SENSOR 

    Result: 

    NG 

    REPAIR OR REPLACE CORRESPONDING ECU OR SENSOR BUS LINE OR CONNECTOR 

scientia non olet · About LEMON Manuals