SEAT BELT WARNING SYSTEM(w/o Occupant Classification System) Rear Seat Belt Warning Light Malfunction

DESCRIPTION

The main body ECU (multiplex network body ECU) detects whether either rear door is open or closed based on the condition of the left and right courtesy light switches and then sends the rear door status signal to the combination meter assembly. The combination meter assembly detects the rear seat belt state. The rear seat belt warning lights on the radio receiver assembly illuminate or turn off in accordance with the rear door state, vehicle speed and rear seat belt state.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

PROCEDURE

1. READ VALUE USING GTS

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the engine switch on (IG).

   3. Turn the GTS on.

   4. Enter the following menus: Body Electrical / Main Body / Data List.

   5. Read the Data List according to the display on the GTS.

      
      Body Electrical > Main Body > Data List

      Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
      RR Door Courtesy SW	Rear door courtesy light switch RH	ON or OFF	ON: Rear door RH open OFF: Rear door RH closed	-
      RL Door Courtesy SW	Rear door courtesy light switch LH	ON or OFF	ON: Rear door LH open OFF: Rear door LH closed	-

      
      Body Electrical > Main Body > Data List

      Tester Display
      RR Door Courtesy SW
      RL Door Courtesy SW

      OK
      The GTS display changes correctly in response to the rear door condition.

      Result
      Proceed to OK NG

   
   

   NG

   GO TO LIGHTING SYSTEM Click here

   OK

2. CHECK REAR SEAT BELT WARNING

   
   
   1. 

      *A	w/o Rear No. 2 Seat
      *B	w/ Rear No. 2 Seat
      *1	Rear Seat Belt Warning Light (Radio Receiver Assembly)
      *a	LH
      *b	Center
      *c	RH
      *d	Rear No. 1 Seat LH
      *e	Rear No. 1 Seat Center
      *f	Rear No. 1 Seat RH
      *g	Rear No. 2 Seat LH
      *h	Rear No. 2 Seat RH

      Check the rear seat belt warning function.

      Click here

      Result

      Result Proceed to The rear seat belt warning lights (all seats) operate normally A The rear seat belt warning lights (all seats) do not operate normally B The rear seat belt warning light (RH) does not operate normally*1 C The rear seat belt warning light (center) does not operate normally*1 D The rear seat belt warning light (LH) does not operate normally*1 E The rear seat belt warning light (rear No. 1 seat RH) does not operate normally*2 F The rear seat belt warning light (rear No. 1 seat center) does not operate normally*2 G The rear seat belt warning light (rear No. 1 seat LH) does not operate normally*2 H The rear seat belt warning light (rear No. 2 seat RH) does not operate normally*2 I The rear seat belt warning light (rear No. 2 seat LH) does not operate normally*2 J

      
      

      • *1: w/o Rear No. 2 Seat

      • *2: w/ Rear No. 2 Seat

   
   

   A

   USE SIMULATION METHOD TO CHECK Click here

   C

   READ VALUE USING GTS Click here

   D

   READ VALUE USING GTS Click here

   E

   READ VALUE USING GTS Click here

   F

   READ VALUE USING GTS Click here

   G

   READ VALUE USING GTS Click here

   H

   READ VALUE USING GTS Click here

   I

   READ VALUE USING GTS Click here

   J

   READ VALUE USING GTS Click here

   B

3. CHECK HARNESS AND CONNECTOR (IG POWER SUPPLY - RADIO RECEIVER ASSEMBLY)

   
   

   1. Disconnect the J50 radio receiver assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition J50-15 (IG) - Body ground Engine switch on (IG) 11 to 14 V J50-15 (IG) - Body ground Engine switch off Below 1 V

      Result
      Proceed to OK NG

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

4. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - COMBINATION METER ASSEMBLY)

   
   

   1. Reconnect the J50 radio receiver assembly connector.

   2. Disconnect the J10 combination meter assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition J10-35 (RLMT) - Body ground Engine switch on (IG) 11 to 14 V J10-36 (RCMT) - Body ground Engine switch on (IG) 11 to 14 V J10-37 (RRMT) - Body ground Engine switch on (IG) 11 to 14 V J10-32 (L) - Body ground* Engine switch on (IG) 11 to 14 V J10-33 (SW) - Body ground* Engine switch on (IG) 11 to 14 V

      *: w/ Rear No. 2 Seat

      Result
      Proceed to OK NG

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

5. REPLACE RADIO RECEIVER ASSEMBLY

   
   

   1. Temporarily replace the radio receiver assembly with a new or known good one.

      for Radio and Display System: Click here

      for Navigation System: Click here

      Result
      Proceed to NEXT

   
   

   NEXT

6. CHECK REAR SEAT BELT WARNING

   
   
   1. 

      *A	w/o Rear No. 2 Seat
      *B	w/ Rear No. 2 Seat
      *1	Rear Seat Belt Warning Light (Radio Receiver Assembly)
      *a	LH
      *b	Center
      *c	RH
      *d	Rear No. 1 Seat LH
      *e	Rear No. 1 Seat Center
      *f	Rear No. 1 Seat RH
      *g	Rear No. 2 Seat LH
      *h	Rear No. 2 Seat RH

      Check the rear seat belt warning function.

      Click here

      OK
      The rear seat belt warning lights (all seats) operate normally.

      Result
      Proceed to OK NG

   
   

   OK

   END (RADIO RECEIVER ASSEMBLY WAS DEFECTIVE)

   NG

   REPLACE COMBINATION METER ASSEMBLY Click here

7. READ VALUE USING GTS

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the engine switch on (IG).

   3. Turn the GTS on.

   4. Enter the following menus: Body Electrical / Combination Meter / Data List.

   5. Read the Data List according to the display on the GTS.

      
      Body Electrical > Combination Meter > Data List

      Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
      2nd-Row Seatbelt Buckle (R)	Rear RH seat belt buckle switch signal	ON or OFF	OFF: Rear RH seat belt fastened ON: Rear RH seat belt not fastened	-

      
      Body Electrical > Combination Meter > Data List

      Tester Display
      2nd-Row Seatbelt Buckle (R)

      Result
      Result Proceed to ON or OFF does not appear on the GTS screen according to the rear seat belt condition A ON or OFF appears on the GTS screen according to the rear seat belt condition B

   
   

   B

   CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - RADIO RECEIVER ASSEMBLY) Click here

   A

8. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - REAR SEAT 3 POINT TYPE BELT ASSEMBLY RH - BODY GROUND)

   
   

   1. Disconnect the J10 combination meter assembly connector.

   2. Disconnect the R19 rear seat 3 point type belt assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition J10-12 (RRSB) - R19-1 (RBR+) Always Below 1 Ω J10-12 (RRSB) or R19-1 (RBR+) - Body ground Always 10 kΩ or higher R19-2 (RBR-) - Body ground Always Below 1 Ω

      Result
      Proceed to OK NG

   
   

   OK

   REPLACE REAR SEAT 3 POINT TYPE BELT ASSEMBLY RH Click here

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

9. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - RADIO RECEIVER ASSEMBLY)

   
   

   1. Disconnect the J10 combination meter assembly connector.

   2. Disconnect the J140 radio receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition J10-37 (RRMT) - J140-3 (RRID) Always Below 1 Ω J10-37 (RRMT) or J140-3 (RRID) - Body ground Always 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

10. REPLACE RADIO RECEIVER ASSEMBLY

    
    

    1. Temporarily replace the radio receiver assembly with a new or known good one.

       for Radio and Display System: Click here

       for Navigation System: Click here

       Result
       Proceed to NEXT

    
    

    NEXT

11. CHECK REAR SEAT BELT WARNING

    
    
    1. 

       *1	Rear Seat Belt Warning Light (Radio Receiver Assembly)
       *a	LH
       *b	Center
       *c	RH

       Check the rear seat belt warning function.

       Click here

       OK
       The rear seat belt warning light (RH) operates normally.

       Result
       Proceed to OK NG

    
    

    OK

    END (RADIO RECEIVER ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

12. READ VALUE USING GTS

    
    

    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Combination Meter / Data List.

    5. Read the Data List according to the display on the GTS.

       
       Body Electrical > Combination Meter > Data List

       Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
       2nd-Row Seatbelt Buckle (C)	Rear center seat belt buckle switch signal	ON or OFF	OFF: Rear center seat belt fastened ON: Rear center seat belt not fastened	-

       
       Body Electrical > Combination Meter > Data List

       Tester Display
       2nd-Row Seatbelt Buckle (C)

       Result
       Result Proceed to ON or OFF does not appear on the GTS screen according to the rear seat belt condition A ON or OFF appears on the GTS screen according to the rear seat belt condition B

    
    

    B

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - RADIO RECEIVER ASSEMBLY) Click here

    A

13. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - REAR SEAT INNER BELT ASSEMBLY LH - BODY GROUND)

    
    

    1. Disconnect the J10 combination meter assembly connector.

    2. Disconnect the S20 rear seat inner belt assembly LH connector.

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

       Standard Resistance
       Tester Connection Condition Specified Condition J10-13 (RCSB) - S20-1 (CBR+) Always Below 1 Ω J10-13 (RCSB) or S20-1 (CBR+) - Body ground Always 10 kΩ or higher S20-2 (CBR-) - Body ground Always Below 1 Ω

       Result
       Proceed to OK NG

    
    

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

14. INSPECT REAR SEAT INNER BELT ASSEMBLY LH

    
    

    1. Remove the rear seat inner belt assembly LH.

       Click here

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

       Standard Resistance
       Tester Connection Condition Specified Condition S20-1 - B-2 Always Below 1 Ω S20-2 - B-1 Always Below 1 Ω

       Result
       Proceed to OK NG

    
    

    OK

    REPLACE REAR CENTER SEAT INNER BELT ASSEMBLY Click here

    NG

    REPLACE REAR SEAT INNER BELT ASSEMBLY LH Click here

15. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - RADIO RECEIVER ASSEMBLY)

    
    

    1. Disconnect the J10 combination meter assembly connector.

    2. Disconnect the J140 radio receiver assembly connector.

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

       Standard Resistance
       Tester Connection Condition Specified Condition J10-36 (RCMT) - J140-4 (RCID) Always Below 1 Ω J10-36 (RCMT) or J140-4 (RCID) - Body ground Always 10 kΩ or higher

       Result
       Proceed to OK NG

    
    

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

16. REPLACE RADIO RECEIVER ASSEMBLY

    
    

    1. Temporarily replace the radio receiver assembly with a new or known good one.

       for Radio and Display System: Click here

       for Navigation System: Click here

       Result
       Proceed to NEXT

    
    

    NEXT

17. CHECK REAR SEAT BELT WARNING

    
    
    1. 

       *1	Rear Seat Belt Warning Light (Radio Receiver Assembly)
       *a	LH
       *b	Center
       *c	RH

       Check the rear seat belt warning function.

       Click here

       OK
       The rear seat belt warning light (center) operates normally.

       Result
       Proceed to OK NG

    
    

    OK

    END (RADIO RECEIVER ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

18. READ VALUE USING GTS

    
    

    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Combination Meter / Data List.

    5. Read the Data List according to the display on the GTS.

       
       Body Electrical > Combination Meter > Data List

       Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
       2nd-Row Seatbelt Buckle (L)	Rear LH seat belt buckle switch signal	ON or OFF	OFF: Rear LH seat belt fastened ON: Rear LH seat belt not fastened	-

       
       Body Electrical > Combination Meter > Data List

       Tester Display
       2nd-Row Seatbelt Buckle (L)

       Result
       Result Proceed to ON or OFF does not appear on the GTS screen according to the rear seat belt condition A ON or OFF appears on the GTS screen according to the rear seat belt condition B

    
    

    B

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - RADIO RECEIVER ASSEMBLY) Click here

    A

19. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - REAR SEAT INNER BELT ASSEMBLY LH - BODY GROUND)

    
    

    1. Disconnect the J10 combination meter assembly connector.

    2. Disconnect the S20 rear seat inner belt assembly LH connector.

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

       Standard Resistance
       Tester Connection Condition Specified Condition J10-14 (RLSB) - S20-3 (LBR+) Always Below 1 Ω J10-14 (RLSB) or S20-3 (LBR+) - Body ground Always 10 kΩ or higher S20-4 (LBR-) - Body ground Always Below 1 Ω

       Result
       Proceed to OK NG

    
    

    OK

    REPLACE REAR SEAT INNER BELT ASSEMBLY LH Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

20. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - RADIO RECEIVER ASSEMBLY)

    
    

    1. Disconnect the J10 combination meter assembly connector.

    2. Disconnect the J140 radio receiver assembly connector.

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

       Standard Resistance
       Tester Connection Condition Specified Condition J10-35 (RLMT) - J140-5 (RLID) Always Below 1 Ω J10-35 (RLMT) or J140-5 (RLID) - Body ground Always 10 kΩ or higher

       Result
       Proceed to OK NG

    
    

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

21. REPLACE RADIO RECEIVER ASSEMBLY

    
    

    1. Temporarily replace the radio receiver assembly with a new or known good one.

       for Radio and Display System: Click here

       for Navigation System: Click here

       Result
       Proceed to NEXT

    
    

    NEXT

22. CHECK REAR SEAT BELT WARNING

    
    
    1. 

       *1	Rear Seat Belt Warning Light (Radio Receiver Assembly)
       *a	LH
       *b	Center
       *c	RH

       Check the rear seat belt warning function.

       Click here

       OK
       The rear seat belt warning light (LH) operates normally.

       Result
       Proceed to OK NG

    
    

    OK

    END (RADIO RECEIVER ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

23. READ VALUE USING GTS

    
    

    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Combination Meter / Data List.

    5. Read the Data List according to the display on the GTS.

       
       Body Electrical > Combination Meter > Data List

       Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
       2nd-Row Seatbelt Buckle (R)	Rear No. 1 RH seat belt buckle switch signal	ON or OFF	OFF: Rear No. 1 RH seat belt fastened ON: Rear No. 1 RH seat belt not fastened	-

       
       Body Electrical > Combination Meter > Data List

       Tester Display
       2nd-Row Seatbelt Buckle (R)

       Result
       Result Proceed to ON or OFF does not appear on the GTS screen according to the rear No. 1 seat belt condition A ON or OFF appears on the GTS screen according to the rear No. 1 seat belt condition B

    
    

    B

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - RADIO RECEIVER ASSEMBLY) Click here

    A

24. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - REAR SEAT 3 POINT TYPE BELT ASSEMBLY RH - BODY GROUND)

    
    

    1. Disconnect the J10 combination meter assembly connector.

    2. Disconnect the x7 rear seat 3 point type belt assembly RH connector.

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

       Standard Resistance
       Tester Connection Condition Specified Condition J10-12 (RRSB) - x7-1 Always Below 1 Ω J10-12 (RRSB) or x7-1 - Body ground Always 10 kΩ or higher x7-2 - Body ground Always Below 1 Ω

       Result
       Proceed to OK NG

    
    

    OK

    REPLACE REAR SEAT 3 POINT TYPE BELT ASSEMBLY RH Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

25. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - RADIO RECEIVER ASSEMBLY)

    
    

    1. Disconnect the J10 combination meter assembly connector.

    2. Disconnect the J140 radio receiver assembly connector.

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

       Standard Resistance
       Tester Connection Condition Specified Condition J10-37 (RRMT) - J140-3 (RRID) Always Below 1 Ω J10-37 (RRMT) or J140-3 (RRID) - Body ground Always 10 kΩ or higher

       Result
       Proceed to OK NG

    
    

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

26. REPLACE RADIO RECEIVER ASSEMBLY

    
    

    1. Temporarily replace the radio receiver assembly with a new or known good one.

       for Radio and Display System: Click here

       for Navigation System: Click here

       Result
       Proceed to NEXT

    
    

    NEXT

27. CHECK REAR SEAT BELT WARNING

    
    
    1. 

       *1	Rear Seat Belt Warning Light (Radio Receiver Assembly)
       *a	Rear No. 1 Seat LH
       *b	Rear No. 1 Seat Center
       *c	Rear No. 1 Seat RH
       *d	Rear No. 2 Seat LH
       *e	Rear No. 2 Seat RH

       Check the rear seat belt warning function.

       Click here

       OK
       The rear seat belt warning light (rear No. 1 seat RH) operates normally.

       Result
       Proceed to OK NG

    
    

    OK

    END (RADIO RECEIVER ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

28. READ VALUE USING GTS

    
    

    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Combination Meter / Data List.

    5. Read the Data List according to the display on the GTS.

       
       Body Electrical > Combination Meter > Data List

       Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
       2nd-Row Seatbelt Buckle (C)	Rear No. 1 center seat belt buckle switch signal	ON or OFF	OFF: Rear No. 1 center seat belt fastened ON: Rear No. 1 center seat belt not fastened	-

       
       Body Electrical > Combination Meter > Data List

       Tester Display
       2nd-Row Seatbelt Buckle (C)

       Result
       Result Proceed to ON or OFF does not appear on the GTS screen according to the rear No. 1 seat belt condition A ON or OFF appears on the GTS screen according to the rear No. 1 seat belt condition B

    
    

    B

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - RADIO RECEIVER ASSEMBLY) Click here

    A

29. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - REAR CENTER SEAT INNER BELT ASSEMBLY - BODY GROUND)

    
    

    1. Disconnect the J10 combination meter assembly connector.

    2. Disconnect the x8 rear center seat inner belt assembly connector.

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

       Standard Resistance
       Tester Connection Condition Specified Condition J10-13 (RCSB) - x8-1 Always Below 1 Ω J10-13 (RCSB) or x8-1 - Body ground Always 10 kΩ or higher x8-2 - Body ground Always Below 1 Ω

       Result
       Proceed to OK NG

    
    

    OK

    REPLACE REAR CENTER SEAT INNER BELT ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

30. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - RADIO RECEIVER ASSEMBLY)

    
    

    1. Disconnect the J10 combination meter assembly connector.

    2. Disconnect the J140 radio receiver assembly connector.

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

       Standard Resistance
       Tester Connection Condition Specified Condition J10-36 (RCMT) - J140-4 (RCID) Always Below 1 Ω J10-36 (RCMT) or J140-4 (RCID) - Body ground Always 10 kΩ or higher

       Result
       Proceed to OK NG

    
    

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

31. REPLACE RADIO RECEIVER ASSEMBLY

    
    

    1. Temporarily replace the radio receiver assembly with a new or known good one.

       for Radio and Display System: Click here

       for Navigation System: Click here

       Result
       Proceed to NEXT

    
    

    NEXT

32. CHECK REAR SEAT BELT WARNING

    
    
    1. 

       *1	Rear Seat Belt Warning Light (Radio Receiver Assembly)
       *a	Rear No. 1 Seat LH
       *b	Rear No. 1 Seat Center
       *c	Rear No. 1 Seat RH
       *d	Rear No. 2 Seat LH
       *e	Rear No. 2 Seat RH

       Check the rear seat belt warning function.

       Click here

       OK
       The rear seat belt warning light (rear No. 1 seat center) operates normally.

       Result
       Proceed to OK NG

    
    

    OK

    END (RADIO RECEIVER ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

33. READ VALUE USING GTS

    
    

    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Combination Meter / Data List.

    5. Read the Data List according to the display on the GTS.

       
       Body Electrical > Combination Meter > Data List

       Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
       2nd-Row Seatbelt Buckle (L)	Rear No. 1 LH seat belt buckle switch signal	ON or OFF	OFF: Rear No. 1 LH seat belt fastened ON: Rear No. 1 LH seat belt not fastened	-

       
       Body Electrical > Combination Meter > Data List

       Tester Display
       2nd-Row Seatbelt Buckle (L)

       Result
       Result Proceed to ON or OFF does not appear on the GTS screen according to the rear No. 1 seat belt condition A ON or OFF appears on the GTS screen according to the rear No. 1 seat belt condition B

    
    

    B

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - RADIO RECEIVER ASSEMBLY) Click here

    A

34. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - REAR SEAT INNER BELT ASSEMBLY LH - BODY GROUND)

    
    

    1. Disconnect the J10 combination meter assembly connector.

    2. Disconnect the y7 rear seat inner belt assembly LH connector.

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

       Standard Resistance
       Tester Connection Condition Specified Condition J10-14 (RLSB) - y7-1 Always Below 1 Ω J10-14 (RLSB) or y7-1 - Body ground Always 10 kΩ or higher y7-2 - Body ground Always Below 1 Ω

       Result
       Proceed to OK NG

    
    

    OK

    REPLACE REAR SEAT INNER BELT ASSEMBLY LH Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

35. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - RADIO RECEIVER ASSEMBLY)

    
    

    1. Disconnect the J10 combination meter assembly connector.

    2. Disconnect the J140 radio receiver assembly connector.

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

       Standard Resistance
       Tester Connection Condition Specified Condition J10-35 (RLMT) - J140-5 (RLID) Always Below 1 Ω J10-35 (RLMT) or J140-5 (RLID) - Body ground Always 10 kΩ or higher

       Result
       Proceed to OK NG

    
    

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

36. REPLACE RADIO RECEIVER ASSEMBLY

    
    

    1. Temporarily replace the radio receiver assembly with a new or known good one.

       for Radio and Display System: Click here

       for Navigation System: Click here

       Result
       Proceed to NEXT

    
    

    NEXT

37. CHECK REAR SEAT BELT WARNING

    
    
    1. 

       *1	Rear Seat Belt Warning Light (Radio Receiver Assembly)
       *a	Rear No. 1 Seat LH
       *b	Rear No. 1 Seat Center
       *c	Rear No. 1 Seat RH
       *d	Rear No. 2 Seat LH
       *e	Rear No. 2 Seat RH

       Check the rear seat belt warning function.

       Click here

       OK
       The rear seat belt warning light (rear No. 1 seat LH) operates normally.

       Result
       Proceed to OK NG

    
    

    OK

    END (RADIO RECEIVER ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

38. READ VALUE USING GTS

    
    

    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Combination Meter / Data List.

    5. Read the Data List according to the display on the GTS.

       
       Body Electrical > Combination Meter > Data List

       Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
       3rd-Row Seatbelt Buckle (R)	Rear No. 2 RH seat belt buckle switch signal	ON or OFF	OFF: Rear No. 2 RH seat belt fastened ON: Rear No. 2 RH seat belt not fastened	-

       
       Body Electrical > Combination Meter > Data List

       Tester Display
       3rd-Row Seatbelt Buckle (R)

       Result
       Result Proceed to ON or OFF does not appear on the GTS screen according to the rear No. 2 seat belt condition A ON or OFF appears on the GTS screen according to the rear No. 2 seat belt condition B

    
    

    B

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - RADIO RECEIVER ASSEMBLY) Click here

    A

39. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - REAR NO. 2 SEAT INNER BELT ASSEMBLY RH - BODY GROUND)

    
    

    1. Disconnect the J10 combination meter assembly connector.

    2. Disconnect the k5 rear No. 2 seat inner belt assembly RH connector.

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

       Standard Resistance
       Tester Connection Condition Specified Condition J10-6 (RRBT) - k5-1 Always Below 1 Ω J10-6 (RRBT) or k5-1 - Body ground Always 10 kΩ or higher k5-2 - Body ground Always Below 1 Ω

       Result
       Proceed to OK NG

    
    

    OK

    REPLACE REAR NO. 2 SEAT INNER BELT ASSEMBLY RH Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

40. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - RADIO RECEIVER ASSEMBLY)

    
    

    1. Disconnect the J10 combination meter assembly connector.

    2. Disconnect the J140 radio receiver assembly connector.

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

       Standard Resistance
       Tester Connection Condition Specified Condition J10-33 (SW) - J140-1 (LAPB) Always Below 1 Ω J10-33 (SW) or J140-1 (LAPB) - Body ground Always 10 kΩ or higher

       Result
       Proceed to OK NG

    
    

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

41. REPLACE RADIO RECEIVER ASSEMBLY

    
    

    1. Temporarily replace the radio receiver assembly with a new or known good one.

       for Radio and Display System: Click here

       for Navigation System: Click here

       Result
       Proceed to NEXT

    
    

    NEXT

42. CHECK REAR SEAT BELT WARNING

    
    
    1. 

       *1	Rear Seat Belt Warning Light (Radio Receiver Assembly)
       *a	Rear No. 1 Seat LH
       *b	Rear No. 1 Seat Center
       *c	Rear No. 1 Seat RH
       *d	Rear No. 2 Seat LH
       *e	Rear No. 2 Seat RH

       Check the rear seat belt warning function.

       Click here

       OK
       The rear seat belt warning light (rear No. 2 seat RH) operates normally.

       Result
       Proceed to OK NG

    
    

    OK

    END (RADIO RECEIVER ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

43. READ VALUE USING GTS

    
    

    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Combination Meter / Data List.

    5. Read the Data List according to the display on the GTS.

       
       Body Electrical > Combination Meter > Data List

       Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
       3rd-Row Seatbelt Buckle (L)	Rear No. 2 LH seat belt buckle switch signal	ON or OFF	OFF: Rear No. 2 LH seat belt fastened ON: Rear No. 2 LH seat belt not fastened	-

       
       Body Electrical > Combination Meter > Data List

       Tester Display
       3rd-Row Seatbelt Buckle (L)

       Result
       Result Proceed to ON or OFF does not appear on the GTS screen according to the rear No. 2 seat belt condition A ON or OFF appears on the GTS screen according to the rear No. 2 seat belt condition B

    
    

    B

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - RADIO RECEIVER ASSEMBLY) Click here

    A

44. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - REAR NO. 2 SEAT INNER BELT ASSEMBLY LH - BODY GROUND)

    
    

    1. Disconnect the J10 combination meter assembly connector.

    2. Disconnect the m3 rear No. 2 seat inner belt assembly LH connector.

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

       Standard Resistance
       Tester Connection Condition Specified Condition J10-8 (RLBT) - m3-1 Always Below 1 Ω J10-8 (RLBT) or m3-1 - Body ground Always 10 kΩ or higher m3-2 - Body ground Always Below 1 Ω

       Result
       Proceed to OK NG

    
    

    OK

    REPLACE REAR NO. 2 SEAT INNER BELT ASSEMBLY LH Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

45. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - RADIO RECEIVER ASSEMBLY)

    
    

    1. Disconnect the J10 combination meter assembly connector.

    2. Disconnect the J140 radio receiver assembly connector.

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

       Standard Resistance
       Tester Connection Condition Specified Condition J10-32 (L) - J140-2 (LAPL) Always Below 1 Ω J10-32 (L) or J140-2 (LAPL) - Body ground Always 10 kΩ or higher

       Result
       Proceed to OK NG

    
    

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

46. REPLACE RADIO RECEIVER ASSEMBLY

    
    

    1. Temporarily replace the radio receiver assembly with a new or known good one.

       for Radio and Display System: Click here

       for Navigation System: Click here

       Result
       Proceed to NEXT

    
    

    NEXT

47. CHECK REAR SEAT BELT WARNING

    
    
    1. 

       *1	Rear Seat Belt Warning Light (Radio Receiver Assembly)
       *a	Rear No. 1 Seat LH
       *b	Rear No. 1 Seat Center
       *c	Rear No. 1 Seat RH
       *d	Rear No. 2 Seat LH
       *e	Rear No. 2 Seat RH

       Check the rear seat belt warning function.

       Click here

       OK
       The rear seat belt warning light (rear No. 2 seat LH) operates normally.

       Result
       Proceed to OK NG

    
    

    OK

    END (RADIO RECEIVER ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here