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AUDIO AND VISUAL SYSTEM, Diagnostic DTC:B1323, B1324, B1325, B1326

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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)
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DESCRIPTION

These DTCs are stored when communication between the radio receiver assembly and remote operation controller assembly (remote touch), combination meter assembly, meter mirror sub-assembly* or clock assembly 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. 3 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. 3 CAN junction connector
B1325 Lost Communication with HUD CAN reception error

  • Local bus communication line

  • Meter mirror sub-assembly power source circuit

  • Meter mirror sub-assembly

  • Radio receiver assembly

  • Harness or connector

  • No. 3 CAN junction connector
B1326 Lost Communication with Clock Device (Local-CAN) CAN reception error

  • Local bus communication line

  • Clock assembly power source circuit

  • Clock assembly

  • Radio receiver assembly

  • Harness or connector

  • No. 3 CAN junction connector
Tip:

The radio receiver assembly is the master unit.

B004RWDE01
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WIRING DIAGRAM

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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.

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

Tip:

  • 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 System.

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PROCEDURE


  1. Click here

    CHECK DTC


    1. Check for DTCs.

      Click here


      1. 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

  2. Click here

    CHECK LOCAL BUS


    1. B004YENC71
      *a

      Rear view of wire harness connector

      (No. 3 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
      G121-5 - G121-16 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

  3. Click here

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


    1. Disconnect the G76 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
      G76-10 (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
      G76-1 (+B) - Body ground Power switch off 11 to 14 V
      G76-6 (ACC) - Body ground Power switch on (ACC) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  4. Click here

    CHECK HARNESS AND CONNECTOR (REMOTE OPERATION CONTROLLER ASSEMBLY [REMOTE TOUCH] - NO. 3 CAN JUNCTION CONNECTOR)


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

    2. Disconnect the G76 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
      G76-9 (MO+) - G76-8 (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

  5. Click here

    CHECK HARNESS AND CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - RADIO RECEIVER ASSEMBLY)


    1. Disconnect the No. 3 CAN junction connector.

    2. B004YENC72
      *a

      Rear view of wire harness connector

      (No. 3 CAN Junction Connector)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G121-5 - G121-16 Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

  6. Click here

    CHECK HARNESS AND CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - REMOTE OPERATION CONTROLLER ASSEMBLY [REMOTE TOUCH])


    1. B004YENC73
      *a

      Rear view of wire harness connector

      (No. 3 CAN Junction Connector)

      Disconnect the No. 3 CAN junction connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G121-3 - G121-14 Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

  7. Click here

    CHECK HARNESS AND CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)


    1. B004YENC74
      *a

      Rear view of wire harness connector

      (No. 3 CAN Junction Connector)

      Disconnect the No. 3 CAN junction connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G121-1 - G121-12 Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      Result
      Proceed to
      OK
      NG

  8. Click here

    CHECK VEHICLE TYPE


    1. Check the vehicle type.

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

  9. Click here

    CHECK HARNESS AND CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - METER MIRROR SUB-ASSEMBLY)


    1. Disconnect the No. 3 CAN junction connector.

    2. B004YENC75
      *a

      Rear view of wire harness connector

      (No. 3 CAN Junction Connector)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G121-4 - G121-15 Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      Result
      Proceed to
      OK
      NG

  10. Click here

    CHECK HARNESS AND CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - CLOCK ASSEMBLY)


    1. B004YENC76
      *a

      Rear view of wire harness connector

      (No. 3 CAN Junction Connector)

      Disconnect the No. 3 CAN junction connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G121-2 - G121-13 Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE NO. 3 CAN JUNCTION CONNECTOR

    • NGClick here
  11. Click here

    CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 3 CAN JUNCTION CONNECTOR)


    1. Disconnect the G54 radio receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G54-5 (CNH1) - G54-6 (CNL1) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE RADIO RECEIVER ASSEMBLYClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  12. Click here

    CHECK HARNESS AND CONNECTOR (REMOTE OPERATION CONTROLLER ASSEMBLY [REMOTE TOUCH] - NO. 3 CAN JUNCTION CONNECTOR)


    1. Disconnect the G76 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
      G76-9 (MO+) - G76-8 (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. Click here

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 3 CAN JUNCTION CONNECTOR)


    1. Disconnect the G34 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G34-8 (TX+) - G34-7 (TX-) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE COMBINATION METER ASSEMBLYClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  14. Click here

    CHECK HARNESS AND CONNECTOR (METER MIRROR SUB-ASSEMBLY - NO. 3 CAN JUNCTION CONNECTOR)


    1. Disconnect the G88 meter mirror sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G88-14 (TX+) - G88-15 (TX-) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE METER MIRROR SUB-ASSEMBLYClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  15. Click here

    CHECK HARNESS AND CONNECTOR (CLOCK ASSEMBLY - NO. 3 CAN JUNCTION CONNECTOR)


    1. Disconnect the G75 clock assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G75-5 (TX+1) - G75-6 (TX-1) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE CLOCK ASSEMBLYClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  16. Click here

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY POWER SOURCE)


    1. Disconnect the G34 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G34-31 (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
      G34-22 (B) - Body ground Power switch off 11 to 14 V
      G34-21 (IG+) - Body ground Power switch on (IG) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  17. Click here

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 3 CAN JUNCTION CONNECTOR)


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

    2. Disconnect the G34 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G34-8 (TX+) - G34-7 (TX-) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE COMBINATION METER ASSEMBLYClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  18. Click here

    CHECK HARNESS AND CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - RADIO RECEIVER ASSEMBLY)


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

    2. Disconnect the No. 3 CAN junction connector.

    3. B004YENC77
      *a

      Rear view of wire harness connector

      (No. 3 CAN Junction Connector)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G121-5 - G121-16 Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

  19. Click here

    CHECK HARNESS AND CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - REMOTE OPERATION CONTROLLER ASSEMBLY [REMOTE TOUCH])


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

    2. Disconnect the No. 3 CAN junction connector.

    3. B004YENC77
      *a

      Rear view of wire harness connector

      (No. 3 CAN Junction Connector)0

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G121-3 - G121-14 Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE NO. 3 CAN JUNCTION CONNECTOR

    • NGClick here
  20. Click here

    CHECK HARNESS AND CONNECTOR (METER MIRROR SUB-ASSEMBLY POWER SOURCE)


    1. Disconnect the G88 meter mirror sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G88-4 (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
      G88-2 (B) - Body ground Power switch off 11 to 14 V
      G88-1 (IG) - Body ground Power switch on (IG) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  21. Click here

    CHECK HARNESS AND CONNECTOR (METER MIRROR SUB-ASSEMBLY - NO. 3 CAN JUNCTION CONNECTOR)


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

    2. Disconnect the G88 meter mirror sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G88-14 (TX+) - G88-15 (TX-) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE METER MIRROR SUB-ASSEMBLYClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  22. Click here

    CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 3 CAN JUNCTION CONNECTOR)


    1. Disconnect the G54 radio receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G54-5 (CNH1) - G54-6 (CNL1) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE RADIO RECEIVER ASSEMBLYClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  23. Click here

    CHECK HARNESS AND CONNECTOR (REMOTE OPERATION CONTROLLER ASSEMBLY [REMOTE TOUCH] - NO. 3 CAN JUNCTION CONNECTOR)


    1. Disconnect the G76 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
      G76-9 (MO+) - G76-8 (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. Click here

    CHECK HARNESS AND CONNECTOR (CLOCK ASSEMBLY POWER SOURCE)


    1. Disconnect the G75 clock assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G75-7 (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
      G75-1 (B) - Body ground Power switch off 11 to 14 V
      G75-2 (ACC) - Body ground Power switch on (ACC) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  25. Click here

    CHECK HARNESS AND CONNECTOR (CLOCK ASSEMBLY - NO. 3 CAN JUNCTION CONNECTOR)


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

    2. Disconnect the G75 clock assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G75-5 (TX+1) - G75-6 (TX-1) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE CLOCK ASSEMBLYClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR