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Home >> Lexus >> 2018 >> RX 450h Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Navigation System (Diagnostic Codes) (1 Of 2) >> Navigation System >> DTC B1321: Lost Communication with EMV; DTC B1322: Lost Communication with Display; DTC B1323: Lost Communication with Haptic Device; DTC B1324: Lost Communication with Meter; DTC B1325: Lost Communication with HUD; DTC B1326: Lost Communication with Clock Device (Local-CAN); DTC B1542: Clock Device Disconnected (Local-CAN); DTC B1563: Haptic Device Disconnected [10/2015 - 08/2019] >> Procedure

DTC B1321: Lost Communication with EMV; DTC B1322: Lost Communication with Display; DTC B1323: Lost Communication with Haptic Device; DTC B1324: Lost Communication with Meter; DTC B1325: Lost Communication with HUD; DTC B1326: Lost Communication with Clock Device (Local-CAN); DTC B1542: Clock Device Disconnected (Local-CAN); DTC B1563: Haptic Device Disconnected [10/2015 - 08/2019]: Procedure

  1. CHECK DTC 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [10/2015 - 08/2019]

      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
      All DTCs are output B
      DTC B1321 is output C
      DTC B1322 is output D
      DTCs B1323 or B1563 are output E
      DTC B1324 is output F
      DTC B1325 is output G
      DTCs B1326 or B1542 are output H

    Result: 

    A 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - 08/2016]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2016 - 12/2017]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - 03/2018]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2018 - 08/2019] 

    Result: 

    C 

    See step  17

    Result: 

    D 

    See step  18

    Result: 

    E 

    See step  20

    Result: 

    F 

    See step  22

    Result: 

    G 

    See step  24

    Result: 

    H 

    See step  26

    Result: 

    B 

    See step  2

  2. CHECK LOCAL BUS 
    1. 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
      J93-6 - J93-16 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

    Result: 

    A 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - 08/2016]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2016 - 12/2017]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - 03/2018]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2018 - 08/2019] 

    Result: 

    C 

    See step  15

    Result: 

    B 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the J93 No. 2 CAN junction connector.
    3. Connect the J50 radio receiver assembly connector.
    4. Measure the resistance according to the value (s) in the table below.
      GTY662502Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 2 CAN Junction Connector)

      Standard Resistance

      Tester Connection Condition Specified Condition
      J93-6 - J93-16 Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  14

    Result: 

    OK 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the J93 No. 2 CAN junction connector.
    3. Connect the J11 combination meter assembly connector.
    4. Measure the resistance according to the value (s) in the table below.
      GTY662502Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 2 CAN Junction Connector)

      Standard Resistance

      Tester Connection Condition Specified Condition
      J93-2 - J93-12 Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  13

    Result: 

    OK 

    See step  5

  5. CHECK HARNESS AND CONNECTOR (REMOTE TOUCH (REMOTE OPERATION BOARD) - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the J93 No. 2 CAN junction connector.
    3. Connect the g1 remote touch (remote operation board) connector.
    4. Measure the resistance according to the value (s) in the table below.
      GTY662502Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 2 CAN Junction Connector)

      Standard Resistance

      Tester Connection Condition Specified Condition
      J93-8 - J93-18 Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  12

    Result: 

    OK 

    See step  6

  6. CHECK HARNESS AND CONNECTOR (ACCESSORY METER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the J93 No. 2 CAN junction connector.
    3. Connect the J56 accessory meter assembly connector.
    4. Measure the resistance according to the value (s) in the table below.
      GTY662502Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 2 CAN Junction Connector)

      Standard Resistance

      Tester Connection Condition Specified Condition
      J93-5 - J93-15 Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  11

    Result: 

    OK 

    See step  7

  7. CHECK HARNESS AND CONNECTOR (HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the J93 No. 2 CAN junction connector.
    3. Connect the K1 headup display (meter mirror sub-assembly) connector.
    4. Measure the resistance according to the value (s) in the table below.
      GTY662502Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 2 CAN Junction Connector)

      Standard Resistance

      Tester Connection Condition Specified Condition
      J93-1 - J93-11 Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  10

    Result: 

    OK 

    See step  8

  8. CHECK HARNESS AND CONNECTOR (CLOCK ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the J93 No. 2 CAN junction connector.
    3. Connect the J79 clock assembly connector.
    4. Measure the resistance according to the value (s) in the table below.
      GTY662502Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 2 CAN Junction Connector)

      Standard Resistance

      Tester Connection Condition Specified Condition
      J93-3 - J93-13 Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 2 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  9

  9. CHECK HARNESS AND CONNECTOR (CLOCK ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the J79 clock 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
      J79-5 (TX1+) - J79-6 (TX1-) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CLOCK ASSEMBLY. Refer to  REMOVAL [10/2015 - 08/2016]  , or refer to  REMOVAL [08/2016 - 08/2019] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  10. CHECK HARNESS AND CONNECTOR (HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary 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 (-) auxiliary battery terminal 54 to 69 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY). Refer to  REMOVAL [10/2015 - 08/2016]  , or refer to  REMOVAL [08/2016 - 08/2019] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  11. CHECK HARNESS AND CONNECTOR (ACCESSORY METER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the J56 accessory meter 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
      J56-16 (TX2+) - J56-15 (TX2-) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ACCESSORY METER ASSEMBLY. Refer to  REMOVAL [10/2015 - 08/2019] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  12. CHECK HARNESS AND CONNECTOR (REMOTE TOUCH (REMOTE OPERATION BOARD) - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the g1 remote touch (remote operation board) 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
      g1-5 (CANH) - g1-4 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE REMOTE TOUCH (REMOTE OPERATION BOARD). Refer to  REMOVAL [10/2015 - 08/2019] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  13. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the J11 combination meter 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
      J11-10 (TX+) - J11-9 (TX-) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [10/2015 - 08/2016]  , or refer to  REMOVAL [08/2016 - 03/2018]  , or refer to  REMOVAL [03/2018 - 08/2019] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  14. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the J50 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
      J50-20 (CNH2) - J50-21 (CNL2) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2015 - 08/2016]  , or refer to  REMOVAL [08/2016 - 03/2018]  , or refer to  REMOVAL [03/2018 - 08/2019] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  15. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the J50 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
      J50-20 (CNH2) - J50-21 (CNL2) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2015 - 08/2016]  , or refer to  REMOVAL [08/2016 - 03/2018]  , or refer to  REMOVAL [03/2018 - 08/2019] 

    Result: 

    NG 

    See step  16

  16. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the J93 No. 2 CAN junction connector.
    3. Connect the J50 radio receiver assembly connector.
    4. Measure the resistance according to the value (s) in the table below.
      GTY662502Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 2 CAN Junction Connector)

      Standard Resistance

      Tester Connection Condition Specified Condition
      J93-6 - J93-16 Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 2 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  17. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the J50 radio receiver assembly connector.
    3. Measure the resistance according to the value (s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J50-20 (CNH2) - J50-21 (CNL2) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2015 - 08/2016]  , or refer to  REMOVAL [08/2016 - 03/2018]  , or refer to  REMOVAL [03/2018 - 08/2019] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  18. CHECK HARNESS AND CONNECTOR (ACCESSORY METER ASSEMBLY POWER SOURCE) 
    1. Disconnect the J56 accessory meter assembly connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J56-13 (GND1) - 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
      J56-12 (B) - Body ground Power switch off 11 to 14 V
      J56-24 (ACC) - Body ground Power switch on (ACC) 11 to 14 V
      J56-23 (IG) - Body ground Power switch on (IG) 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  19

  19. CHECK HARNESS AND CONNECTOR (ACCESSORY METER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the J56 accessory meter assembly connector.
    3. Measure the resistance according to the value (s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J56-16 (TX2+) - J56-15 (TX2-) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ACCESSORY METER ASSEMBLY. Refer to  REMOVAL [10/2015 - 08/2019] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  20. CHECK HARNESS AND CONNECTOR (REMOTE TOUCH (REMOTE OPERATION BOARD) POWER SOURCE) 
    1. Disconnect the g1 remote touch (remote operation board) connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      g1-15 (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
      g1-1 (+B) - Body ground Power switch off 11 to 14 V
      g1-2 (ACC) - Body ground Power switch on (ACC) 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  21

  21. CHECK HARNESS AND CONNECTOR (REMOTE TOUCH (REMOTE OPERATION BOARD) - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the g1 remote touch (remote operation board) connector.
    3. Measure the resistance according to the value (s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      g1-5 (CANH) - g1-4 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE REMOTE TOUCH (REMOTE OPERATION BOARD). Refer to  REMOVAL [10/2015 - 08/2019] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  22. 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 Power switch off 11 to 14 V
      J10-21 (IG+) - Body ground Power switch on (IG) 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  23

  23. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary 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 (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [10/2015 - 08/2016]  , or refer to  REMOVAL [08/2016 - 03/2018]  , or refer to  REMOVAL [03/2018 - 08/2019] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  24. 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 Power switch off 11 to 14 V
      K1-2 (IG) - Body ground Power switch on (IG) 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  25

  25. CHECK HARNESS AND CONNECTOR (HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary 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 (-) auxiliary battery terminal 54 to 69 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY). Refer to  REMOVAL [10/2015 - 08/2016]  , or refer to  REMOVAL [08/2016 - 08/2019] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  26. CHECK HARNESS AND CONNECTOR (CLOCK ASSEMBLY POWER SOURCE) 
    1. Disconnect the J79 clock assembly connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J79-7 (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
      J79-1 (B) - Body ground Power switch off 11 to 14 V
      J79-2 (ACC) - Body ground Power switch on (ACC) 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  27

  27. CHECK HARNESS AND CONNECTOR (CLOCK ASSEMBLY - NO. 2 CAN JUNCTION CONNECTOR) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the J79 clock assembly connector.
    3. Measure the resistance according to the value (s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J79-5 (TX1+) - J79-6 (TX1-) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CLOCK ASSEMBLY. Refer to  REMOVAL [10/2015 - 08/2016]  , or refer to  REMOVAL [08/2016 - 08/2019] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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