AUDIO AND VISUAL SYSTEM(for 8 Inch Display), Diagnostic DTC:B1324, B1325

DTC Code DTC Name
B1324 Lost Communication with Meter
B1325 Lost Communication with HUD

DESCRIPTION

These DTCs are stored when communication between the radio receiver assembly and combination meter assembly or headup display (meter mirror sub-assembly)*1 is not possible.

DTC No. Detection Item DTC Detection Condition Trouble Area
B1324 Lost Communication with Meter After the radio receiver assembly receives a registration information signal, which is sent by the combination meter assembly when the engine switch is on (ACC), 1 or more times, the radio receiver assembly does not receive the signal for 30 seconds or more.

  • Local bus communication line

  • Combination meter assembly power source circuit

  • Combination meter assembly

  • Radio receiver assembly

  • Harness or connector

  • Stop and start system*2
B1325 Lost Communication with HUD After the radio receiver assembly receives a registration information signal, which is sent by the headup display (meter mirror sub-assembly) when the engine switch is on (ACC), 1 or more times, the radio receiver assembly does not receive the signal for 30 seconds or more.*1

  • Local bus communication line

  • Headup Display (Meter Mirror Sub-assembly) power source circuit

  • Headup Display (Meter Mirror Sub-assembly)

  • Radio receiver assembly

  • Harness or connector

  • Stop and start system*2

Tech Tips

The radio receiver assembly is the master unit.

WIRING DIAGRAM

B007XL5E02

CAUTION / NOTICE / HINT

Note


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

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

    Click here

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

    2. Recheck for DTCs and check that no DTCs are output.


      Body Electrical > Navigation System > Trouble Codes
      Result
      Result Proceed to
      All DTCs are not output A

      DTCs B1324 and B1325 are output

      (w/ Headup Display (Meter Mirror Sub-assembly))

      		 B
      DTC B1324 is output C

      DTC B1325 is output

      (w/ Headup Display (Meter Mirror Sub-assembly))

      		 D

    A

    USE SIMULATION METHOD TO CHECK Click here

    C

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

    D

    CHECK HARNESS AND CONNECTOR (HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) POWER SOURCE) Click here

    B

  2. CHECK LOCAL BUS


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

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J93-6 - J93-16 Cable disconnected from negative (-) 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

    C

    CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR) Click here

    B

  3. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR)


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

    2. Disconnect the J93 No. 2 CAN junction connector.

    3. Connect the J55 radio receiver assembly connector.

    4. B007XCHC27
      *a

      Front view of wire harness connector

      (to No. 2 CAN Junction Connector)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J93-6 - J93-16 Cable disconnected from negative (-) battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR) Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR)


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

    2. Disconnect the J93 No. 2 CAN junction connector.

    3. Connect the J11 combination meter assembly connector.

    4. B007XCHC27
      *a

      Front view of wire harness connector

      (to No. 2 CAN Junction Connector)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J93-2 - J93-12 Cable disconnected from negative (-) battery terminal 108 to 132 Ω
      Result
      Result Proceed to
      OK (w/o Headup Display (Meter Mirror Sub-assembly)) A
      OK (w/ Headup Display (Meter Mirror Sub-assembly)) B
      NG C

    A

    REPLACE NO. 2 CAN JUNCTION CONNECTOR

    C

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR) Click here

    B

  5. CHECK HARNESS AND CONNECTOR (HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) - NO. 2 CAN JUNCTION CONNECTOR)


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

    2. Disconnect the J93 No. 2 CAN junction connector.

    3. Connect the K1 headup display (meter mirror sub-assembly) connector.

    4. B007XCHC27
      *a

      Front view of wire harness connector

      (to No. 2 CAN Junction Connector)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J93-1 - J93-11 Cable disconnected from negative (-) battery terminal 200 Ω or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NO. 2 CAN JUNCTION CONNECTOR

    NG

  6. CHECK HARNESS AND CONNECTOR (HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) - NO. 2 CAN JUNCTION CONNECTOR)


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

    2. Disconnect the K1 headup display (meter mirror sub-assembly) connector.

    3. Connect the J93 No. 2 CAN junction connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K1-7 (TX+) - K1-8 (TX-) Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  7. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR)


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

    2. Disconnect the J11 combination meter assembly connector.

    3. Connect the J93 No. 2 CAN junction connector.

    4. B007XCHC27
      *a

      Front view of wire harness connector

      (to No. 2 CAN Junction Connector)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J93-2 - J93-12 Cable disconnected from negative (-) battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  8. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR)


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

    2. Disconnect the J55 radio receiver assembly connector.

    3. Connect the J93 No. 2 CAN junction connector.

    4. B007XCHC27
      *a

      Front view of wire harness connector

      (to No. 2 CAN Junction Connector)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J93-6 - J93-16 Cable disconnected from negative (-) 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

  9. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR)


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

    2. Disconnect the J55 radio receiver assembly connector.

    3. Connect the J93 No. 2 CAN junction connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J55-3 (CNH1) - J55-4 (CNL1) Cable disconnected from negative (-) battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    NG

  10. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR)


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

    2. Disconnect the J93 No. 2 CAN junction connector.

    3. Connect the J55 radio receiver assembly connector.

    4. B007XCHC27
      *a

      Front view of wire harness connector

      (to No. 2 CAN Junction Connector)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J93-6 - J93-16 Cable disconnected from negative (-) battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NO. 2 CAN JUNCTION CONNECTOR

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

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


    1. Disconnect the J10 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J10-31 (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
      J10-22 (B) - Body ground Always 11 to 14 V
      J10-21 (IG+) - Body ground Engine switch on (IG)

      11 to 14 V*1

      9.5 to 14 V*2

      • *1: w/o Stop and Start System

        *2: w/ Stop and Start System

      Result
      Result Proceed to
      OK A
      NG (w/o Stop and Start System) B
      NG (w/ Stop and Start System) C

    B

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    C

    GO TO STOP AND START SYSTEM Click here

    A

  12. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR)


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

    2. Disconnect the J11 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J11-10 (TX+) - J11-9 (TX-) Cable disconnected from negative (-) battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  13. CHECK HARNESS AND CONNECTOR (HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) POWER SOURCE)


    1. Disconnect the K1 headup display (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
      K1-6 (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
      K1-1 (B) - Body ground Always

      11 to 14 V*1

      9.5 to 14 V*2
      K1-2 (IG) - Body ground Engine switch on (IG)

      11 to 14 V*1

      9.5 to 14 V*2

      • *1: w/o Stop and Start System

        *2: w/ Stop and Start System

      Result
      Result Proceed to
      OK A
      NG (w/o Stop and Start System) B
      NG (w/ Stop and Start System) C

    B

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    C

    GO TO STOP AND START SYSTEM Click here

    A

  14. CHECK HARNESS AND CONNECTOR (HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) - NO. 2 CAN JUNCTION CONNECTOR)


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

    2. Disconnect the K1 headup display (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
      K1-7 (TX+) - K1-8 (TX-) Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR