Part 2

SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B1622/81,B1623/81,B1632/81,B1633/81,B1642/81,B1643/81,B1692/81,B1693/81: Lost communication with Side Airbag Sensor RH
B1693/81 - Door Side Airbag Sensor RH Initialization Incomplete Continued

13. CHECK WIRE HARNESS (SHORT)

(a) Disconnect SST from connector E.

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

Standard Resistance:

Text in Illustration

NG -- CHECK FRONT DOOR WIRE RH (SHORT)
OK -- Continue to next step.

14. CHECK WIRE HARNESS (SHORT TO B+)

(a) Connect the cable to the negative (-) battery terminal.

(b) Turn the power switch on (IG).

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

Standard Voltage:

Text in Illustration

NG -- CHECK FRONT DOOR WIRE RH (SHORT TO B+)
OK -- Continue to next step.

15. CHECK WIRE HARNESS (SHORT TO GROUND)

(a) Turn the power switch off.

Text in Illustration

NG -- CHECK FRONT DOOR WIRE RH (SHORT TO GROUND)
OK -- Continue to next step.

16. CHECK SIDE AIRBAG SENSOR RH (FOR REAR SIDE)

(a) Connect the connectors to the rear airbag sensor RH, side airbag sensor RH (for front side) and center airbag sensor assembly.

(b) Interchange the side airbag sensor LH (for rear side) with side airbag sensor RH (for rear side) and connect the connectors.

(c) Connect the cable to the negative (-) battery terminal.

(d) Turn the power switch on (IG), and wait for at least 60 seconds.

(e) Clear the DTCs stored in the memory Reading and Clearing Diagnostic Trouble Codes.

(f) Turn the power switch off.

(g) Turn the power switch on (IG), and wait for at least 60 seconds.

(h) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result:

Text in Illustration

HINT
Codes other than DTC B1642, B1643, or 81 and B1647, B1648, or 82 may be output at this time, but they are not related to this check.

C -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting

B -- REPLACE SIDE AIRBAG SENSOR RH (FOR REAR SIDE) Removal
A -- Continue to next step.

17. CHECK REAR AIRBAG SENSOR RH

(a) Turn the power switch off.

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

NOTICE:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

(c) Return the side airbag sensor LH (for rear side) and side airbag sensor RH (for rear side) to their original positions and connect the connectors.

(d) Interchange the rear airbag sensor LH with RH and connect the connectors to them.

(e) Connect the cable to the negative (-) battery terminal.

(f) Turn the power switch on (IG), and wait for at least 60 seconds.

(g) Clear the DTCs stored in the memory Reading and Clearing Diagnostic Trouble Codes.

(h) Turn the power switch off.

(i) Turn the power switch on (IG), and wait for at least 60 seconds.

(j) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result:

Text in Illustration

HINT
Codes other than DTC B1642, B1643, or 81 and B1647, B1648, or 82 may be output at this time, but they are not related to this check.

C -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting

B -- REPLACE REAR AIRBAG SENSOR RH Removal
A -- Continue to next step.

18. CHECK SIDE AIRBAG SENSOR RH (FOR FRONT SIDE)

(a) Turn the power switch off.

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

NOTICE:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

(c) Return the rear airbag sensor LH and RH to their original positions and connect the connectors.

(d) Interchange the side airbag sensor LH (for front side) with side airbag sensor RH (for front side) and connect the connectors.

(e) Connect the cable to the negative (-) battery terminal.

(f) Turn the power switch on (IG), and wait for at least 60 seconds.

(g) Clear the DTCs stored in the memory Reading and Clearing Diagnostic Trouble Codes.

(h) Turn the power switch off.

(i) Turn the power switch on (IG), and wait for at least 60 seconds.

(j) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result:

Text in Illustration

HINT
Codes other than DTC B1642, B1643, or 81 and B1647, B1648, or 82 may be output at this time, but they are not related to this check.

C -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting

B -- REPLACE SIDE AIRBAG SENSOR RH (FOR FRONT SIDE) Removal

A -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY Removal

19. CHECK PAST DTC

(a) Turn the power switch on (IG), and wait for at least 60 seconds.

(b) Check for past DTCs Reading and Clearing Diagnostic Trouble Codes.

Result:

HINT
Codes other than past DTC B1622 and B1632 may be output at this time, but they are not related to this check.

C -- CHECK REAR AIRBAG SENSOR RH

B -- CHECK SIDE AIRBAG SENSOR RH (FOR REAR SIDE)
A -- Continue to next step.

20. CHECK PRESENT DTC

(a) Turn the power switch on (IG), and wait for at least 60 seconds.

(b) Check for present DTCs Reading and Clearing Diagnostic Trouble Codes.

Result:

HINT
Codes other than present DTC B1623 and B1633 may be output at this time, but they are not related to this check.

B -- CHECK CONNECTORS
A -- Continue to next step.

21. CHECK CONNECTORS

(a) Turn the power switch off.

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

NOTICE:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

(c) Check that the connectors are properly connected to the center airbag sensor assembly, side airbag sensor RH (for rear side) and rear airbag sensor RH.

OK:

The connectors are properly connected.

HINT
If the connectors are not connected securely, reconnect the connectors and proceed to the next inspection.

(d) Disconnect the connectors from the center airbag sensor assembly, side airbag sensor RH (for rear side) and rear airbag sensor RH.

(e) Check that the terminals of connectors are not damaged.

OK:

The terminals are not deformed or damaged.

NG -- REPLACE FLOOR WIRE
OK -- Continue to next step.

22. CHECK FLOOR WIRE (OPEN)

(a) Using SST, connect terminals 17 (BBR+) and 18 (BBR-) of connector B.

NOTICE:
Do not forcibly insert SST into the terminals of the connector when connecting.

SST : 09843-18040

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

Standard Resistance:

Text in Illustration

NG -- REPLACE FLOOR WIRE
OK -- Continue to next step.

23. CHECK FLOOR WIRE (SHORT)

(a) Disconnect SST from connector B.

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

Standard Resistance:

Text in Illustration

NG -- REPLACE FLOOR WIRE
OK -- Continue to next step.

24. CHECK FLOOR WIRE (SHORT TO B+)

(a) Connect the cable to the negative (-) battery terminal.

(b) Turn the power switch on (IG).

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

Standard Voltage:

Text in Illustration

NG -- REPLACE FLOOR WIRE
OK -- Continue to next step.

25. CHECK FLOOR WIRE (SHORT TO GROUND)

(a) Turn the power switch off.

Text in Illustration

NG -- REPLACE FLOOR WIRE
OK -- Continue to next step.

26. CHECK FLOOR WIRE (OPEN)

(a) Using SST, connect terminals 4 (BCR+) and 3 (BCR-) of connector C.

Text in Illustration

NG -- REPLACE FLOOR WIRE
OK -- Continue to next step.

27. CHECK FLOOR WIRE (SHORT)

(a) Disconnect SST from connector C.

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

Standard Resistance:

Text in Illustration

NG -- REPLACE FLOOR WIRE
OK -- Continue to next step.