AUDIO AND VISUAL SYSTEM(for 10.3 Inch Display), Diagnostic DTC:B1323, B1324, B1325, B1326

DTC Code DTC Name
B1323 Lost Communication with Haptic Device
B1324 Lost Communication with Meter
B1325 Lost Communication with HUD
B1326 Lost Communication with Clock Device (Local-CAN)

DESCRIPTION

These DTCs are stored when communication between the radio receiver assembly and remote operation controller assembly (remote touch), combination meter assembly, combination meter mirror ECU* or air conditioning control assembly (clock) is not possible.


DTC No. Detection Item DTC Detection Condition Trouble Area
B1323 Lost Communication with Haptic Device CAN reception error

  • Local bus communication line

  • Remote operation controller assembly (remote touch) power source circuit

  • Remote operation controller assembly (remote touch)

  • Radio receiver assembly

  • Harness or connector

  • No. 10 CAN junction connector
B1324 Lost Communication with Meter CAN reception error

  • Local bus communication line

  • Combination meter assembly power source circuit

  • Combination meter assembly

  • Radio receiver assembly

  • Harness or connector

  • No. 10 CAN junction connector
B1325 Lost Communication with HUD CAN reception error

  • Local bus communication line

  • Combination meter mirror ECU power source circuit

  • Combination meter mirror ECU

  • Radio receiver assembly

  • Harness or connector

  • No. 10 CAN junction connector
B1326 Lost Communication with Clock Device (Local-CAN) CAN reception error

  • Local bus communication line

  • Air conditioning control assembly (clock) power source circuit

  • Air conditioning control assembly (clock)

  • Radio receiver assembly

  • Harness or connector

  • No. 10 CAN junction connector

Tech Tips

The radio receiver assembly is the master unit.

WIRING DIAGRAM

B002H2EE22
B002IIBE02

CAUTION / NOTICE / HINT

Note


  • When replacing the radio receiver assembly, always replace it with a new one.

    If a radio receiver assembly which was installed to another vehicle is used, the following may occur:


    • A communication malfunction DTC may be stored.

    • The radio receiver assembly may not operate normally.

  • After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

    Click here

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

Tech Tips


  • B1323, B1324, B1325 and B1326 will not continue to output when clear DTC is performed even if the malfunction continues.

  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System.

    Click here

PROCEDURE


  1. CHECK DTC


    1. Check for DTCs.

      Click here


      Body Electrical > Navigation System > Trouble Codes
      Result
      Result Proceed to
      DTCs B1323, B1324, B1325* and B1326 are output A
      DTC B1323 is output B
      DTC B1324 is output C
      DTCs B1325 is output* D
      DTC B1326 is output E
      *: w/ Headup Display

    B

    CHECK HARNESS AND CONNECTOR (REMOTE OPERATION CONTROLLER ASSEMBLY [REMOTE TOUCH] POWER SOURCE) Click here

    C

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY POWER SOURCE) Click here

    D

    CHECK HARNESS AND CONNECTOR (COMBINATION METER MIRROR ECU POWER SOURCE) Click here

    E

    CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY [CLOCK] POWER SOURCE) Click here

    A

  2. CHECK LOCAL BUS


    1. B002JSBC66
      *a

      Rear view of wire harness connector

      (No. 10 CAN Junction Connector)

      Disconnect the cable from the negative (-) auxiliary battery terminal.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I166-7 - I166-18 Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω
      Result
      Result Proceed to
      OK A
      NG (Below 54 Ω) B
      NG (70 Ω or higher) C

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    CHECK HARNESS AND CONNECTOR (NO.10 CAN JUNCTION CONNECTOR - RADIO RECEIVER ASSEMBLY) Click here

    C

    CHECK HARNESS AND CONNECTOR (NO. 10 CAN JUNCTION CONNECTOR - RADIO RECEIVER ASSEMBLY) Click here

  3. CHECK HARNESS AND CONNECTOR (REMOTE OPERATION CONTROLLER ASSEMBLY [REMOTE TOUCH] POWER SOURCE)


    1. B002ITWC38
      *a

      Front view of wire harness connector

      (to Remote Operation Controller Assembly [Remote Touch])

      Disconnect the remote operation controller assembly (remote touch) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I71-10 (GND) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      I71-1 (+B) - Body ground Power switch off 11 to 14 V
      I71-6 (ACC) - Body ground Power switch on (ACC) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (REMOTE OPERATION CONTROLLER ASSEMBLY [REMOTE TOUCH] - NO. 10 CAN JUNCTION CONNECTOR)


    1. B002ITWC39
      *a

      Front view of wire harness connector

      (to Remote Operation Controller Assembly [Remote Touch])

      Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. Disconnect the remote operation controller assembly (remote touch) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I71-9 (MO+) - I71-8 (MO-) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE REMOTE OPERATION CONTROLLER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  5. CHECK HARNESS AND CONNECTOR (NO.10 CAN JUNCTION CONNECTOR - RADIO RECEIVER ASSEMBLY)


    1. Disconnect the No. 10 CAN junction connector.

    2. B002JSBC51
      *a

      Rear view of wire harness connector

      (No. 10 CAN Junction Connector)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I166-7 - I166-18 Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 10 CAN JUNCTION CONNECTOR) Click here

    OK

  6. CHECK HARNESS AND CONNECTOR (NO. 10 CAN JUNCTION CONNECTOR - REMOTE OPERATION CONTROLLER ASSEMBLY [REMOTE TOUCH])


    1. B002JSBC52
      *a

      Rear view of wire harness connector

      (No. 10 CAN Junction Connector)

      Disconnect the No. 10 CAN junction connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I166-9 - I166-20 Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (REMOTE OPERATION CONTROLLER ASSEMBLY [REMOTE TOUCH] - NO. 10 CAN JUNCTION CONNECTOR) Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (NO. 10 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)


    1. B002JSBC53
      *a

      Rear view of wire harness connector

      (No. 10 CAN Junction Connector)

      Disconnect the No. 10 CAN junction connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I166-11 - I166-22 Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 10 CAN JUNCTION CONNECTOR) Click here

    OK

  8. CHECK VEHICLE TYPE


    1. Check the vehicle type.

      Result
      Result Proceed to
      w/ Headup Display A
      w/o Headup Display B

    B

    GO TO STEP 10 Click here

    A

  9. CHECK HARNESS AND CONNECTOR (NO. 10 CAN JUNCTION CONNECTOR - COMBINATION METER MIRROR ECU)


    1. Disconnect the No. 10 CAN junction connector.

    2. B002JSBC53
      *a

      Rear view of wire harness connector

      (No. 10 CAN Junction Connector)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I166-8 - I166-19 Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (COMBINATION METER MIRROR ECU - NO. 10 CAN JUNCTION CONNECTOR) Click here

    OK

  10. CHECK HARNESS AND CONNECTOR (NO. 10 CAN JUNCTION CONNECTOR - AIR CONDITIONING CONTROL ASSEMBLY [CLOCK])


    1. B002JSBC53
      *a

      Rear view of wire harness connector

      (No. 10 CAN Junction Connector)

      Disconnect the No. 10 CAN junction connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I166-10 - I166-21 Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NO. 10 CAN JUNCTION CONNECTOR

    NG

    CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY (CLOCK) - NO. 10 CAN JUNCTION CONNECTOR) Click here

  11. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 10 CAN JUNCTION CONNECTOR)


    1. B002JO6C11
      *a

      Front view of wire harness connector

      (to Radio Receiver Assembly)

      Disconnect the radio receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I153-5 (CNH1) - I153-6 (CNL1) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  12. CHECK HARNESS AND CONNECTOR (REMOTE OPERATION CONTROLLER ASSEMBLY [REMOTE TOUCH] - NO. 10 CAN JUNCTION CONNECTOR)


    1. B002ITWC40
      *a

      Front view of wire harness connector

      (to Remote Operation Controller Assembly [Remote Touch])

      Disconnect the remote operation controller assembly (remote touch) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I71-9 (MO+) - I71-8 (MO-) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE REMOTE OPERATION CONTROLLER ASSEMBLY (REMOTE TOUCH) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  13. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 10 CAN JUNCTION CONNECTOR)


    1. B002H4MC15
      *a

      Front view of wire harness connector

      (to Combination Meter Assembly)

      Disconnect the combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I11-10 (MSCH) - I11-9 (MSCL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  14. CHECK HARNESS AND CONNECTOR (COMBINATION METER MIRROR ECU - NO. 10 CAN JUNCTION CONNECTOR)


    1. B002K80C40
      *a

      Front view of wire harness connector

      (to Combination Meter Mirror ECU)

      Disconnect the combination meter mirror ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J5-14 (CS) - J5-15 (TX-) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER MIRROR ECU Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  15. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY (CLOCK) - NO. 10 CAN JUNCTION CONNECTOR)


    1. B002J3QC36
      *a

      Front view of wire harness connector

      (to Air Conditioning Control Assembly [Clock])

      Disconnect the air conditioning control assembly (clock) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I163-4 (TX1+) - I163-3 (TX1-) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE AIR CONDITIONING CONTROL ASSEMBLY (CLOCK) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  16. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY POWER SOURCE)


    1. B002KS3C15
      *a

      Front view of wire harness connector

      (to Combination Meter Assembly)

      Disconnect the combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I10-31 (ES) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      I10-22 (B) - Body ground Power switch off 11 to 14 V
      I10-21 (IG+) - Body ground Power switch on (IG) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  17. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 10 CAN JUNCTION CONNECTOR)


    1. B002H4MC16
      *a

      Front view of wire harness connector

      (to Combination Meter Assembly)

      Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. Disconnect the combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I11-10 (MSCH) - I11-9 (MSCL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  18. CHECK HARNESS AND CONNECTOR (NO. 10 CAN JUNCTION CONNECTOR - RADIO RECEIVER ASSEMBLY)


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. Disconnect the No. 10 CAN junction connector.

    3. B002JSBC53
      *a

      Rear view of wire harness connector

      (No. 10 CAN Junction Connector)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I166-7 - I166-18 Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 10 CAN JUNCTION CONNECTOR) Click here

    OK

  19. CHECK HARNESS AND CONNECTOR (NO. 10 CAN JUNCTION CONNECTOR - REMOTE OPERATION CONTROLLER ASSEMBLY [REMOTE TOUCH])


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. Disconnect the No. 10 CAN junction connector.

    3. B002JSBC53
      *a

      Rear view of wire harness connector

      (No. 10 CAN Junction Connector)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I166-9 - I166-20 Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NO. 10 CAN JUNCTION CONNECTOR

    NG

    CHECK HARNESS AND CONNECTOR (REMOTE OPERATION CONTROLLER ASSEMBLY [REMOTE TOUCH] - NO. 10 CAN JUNCTION CONNECTOR) Click here

  20. CHECK HARNESS AND CONNECTOR (COMBINATION METER MIRROR ECU POWER SOURCE)


    1. B002K80C46
      *a

      Front view of wire harness connector

      (to Combination Meter Mirror ECU)

      Disconnect the combination meter mirror ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J5-4 (ES) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      J5-2 (B) - Body ground Power switch off 11 to 14 V
      J5-1 (IG) - Body ground Power switch on (IG) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  21. CHECK HARNESS AND CONNECTOR (COMBINATION METER MIRROR ECU - NO. 10 CAN JUNCTION CONNECTOR)


    1. B002K80C40
      *a

      Front view of wire harness connector

      (to Combination Meter Mirror ECU)

      Disconnect the cable from the negative (-) battery terminal.

    2. Disconnect the combination meter mirror ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J5-14 (CS) - J5-15 (TX-) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER MIRROR ECU Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  22. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 10 CAN JUNCTION CONNECTOR)


    1. B002JO6C11
      *a

      Front view of wire harness connector

      (to Radio Receiver Assembly)

      Disconnect the radio receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I153-5 (CNH1) - I153-6 (CNL1) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  23. CHECK HARNESS AND CONNECTOR (REMOTE OPERATION CONTROLLER ASSEMBLY [REMOTE TOUCH] - NO. 10 CAN JUNCTION CONNECTOR)


    1. B002ITWC40
      *a

      Front view of wire harness connector

      (to Remote Operation Controller Assembly [Remote Touch])

      Disconnect the remote operation controller assembly (remote touch) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I71-9 (MO+) - I71-8 (MO-) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE REMOTE OPERATION CONTROLLER ASSEMBLY (REMOTE TOUCH) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  24. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY [CLOCK] POWER SOURCE)


    1. B002J3QC37
      *a

      Front view of wire harness connector

      (to Air Conditioning Control Assembly [Clock])

      Disconnect the air conditioning control assembly (clock) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I163-2 (E) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      I163-8 (B) - Body ground Power switch off 11 to 14 V
      I163-7 (ACC) - Body ground Power switch on (ACC) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  25. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY [CLOCK] - NO. 10 CAN JUNCTION CONNECTOR)


    1. B002J3QC38
      *a

      Front view of wire harness connector

      (to Air Conditioning Control Assembly [Clock])

      Disconnect the cable from the negative (-) battery terminal.

    2. Disconnect the air conditioning control assembly (clock) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I163-4 (TX1+) - I163-3 (TX1-) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE AIR CONDITIONING CONTROL ASSEMBLY (CLOCK) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR