Part 2

SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for Separate Type Yaw Rate Sensor): 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

21. CHECK CONNECTORS

(a) Turn the power switch off.

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

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

(c) Check that the connectors are properly connected to the airbag sensor assembly, side airbag sensor assembly RH and side No. 2 airbag sensor assembly 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 airbag sensor assembly, side airbag sensor assembly RH and side No. 2 airbag sensor assembly RH.

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

OK:

The terminals are not deformed or damaged.

NG -- REPLACE NO. 2 FLOOR WIRE
OK -- Continue to next step.

22. CHECK NO. 2 FLOOR WIRE (OPEN)

(a) Using a service wire, connect terminals 8 (BBR+) and 11 (BBR-) of connector B.





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

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

Standard Resistance:





(c) Disconnect the service wire from connector B.

Text in Illustration





NG -- REPLACE NO. 2 FLOOR WIRE
OK -- Continue to next step.

23. CHECK NO. 2 FLOOR WIRE (SHORT)

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





Standard Resistance:





Text in Illustration





NG -- REPLACE NO. 2 FLOOR WIRE
OK -- Continue to next step.

24. CHECK NO. 2 FLOOR WIRE (SHORT TO B+)

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





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

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

Standard Voltage:





(d) Turn the power switch off.

(e) Disconnect the cable from the negative (-) auxiliary terminal.

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

Text in Illustration





NG -- REPLACE NO. 2 FLOOR WIRE
OK -- Continue to next step.

25. CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND)

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





Standard Resistance:





Text in Illustration





NG -- REPLACE NO. 2 FLOOR WIRE
OK -- Continue to next step.

26. CHECK NO. 2 FLOOR WIRE (OPEN)

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





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

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

Standard Resistance:





(c) Disconnect the service wire from connector C.

Text in Illustration





NG -- REPLACE NO. 2 FLOOR WIRE
OK -- Continue to next step.

27. CHECK NO. 2 FLOOR WIRE (SHORT)

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





Standard Resistance:





Text in Illustration





NG -- REPLACE NO. 2 FLOOR WIRE
OK -- Continue to next step.

28. CHECK NO. 2 FLOOR WIRE (SHORT TO B+)

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





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

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

Standard Voltage:





(d) Turn the power switch off.

(e) Disconnect the cable from the negative (-) auxiliary terminal.

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

Text in Illustration





NG -- REPLACE NO. 2 FLOOR WIRE
OK -- Continue to next step.

29. CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND)

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





Standard Resistance:





Text in Illustration





NG -- REPLACE NO. 2 FLOOR WIRE
OK -- Continue to next step.

30. CHECK SIDE AIRBAG SENSOR ASSEMBLY RH

(a) Connect the connectors to the side No. 2 airbag sensor assembly RH and airbag sensor assembly.





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

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

(d) Clear the DTCs stored in memory Separate Type Yaw Rate Sensor.

(e) Turn the power switch off.

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

(g) Check for DTCs Separate Type Yaw Rate Sensor.

Result:





HINT
Codes other than DTCs B1623 and B1628 may be output at this time, but they are not related to this check.

(h) Turn the power switch off.

(i) Disconnect the cable from the negative (-) auxiliary terminal.

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

(j) Return the side airbag sensor assembly RH and LH to their original positions and connect the connectors.

Text in Illustration





B -- REPLACE SIDE AIRBAG SENSOR ASSEMBLY RH Removal

C -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting
A -- Continue to next step.

31. CHECK SIDE NO. 2 AIRBAG SENSOR ASSEMBLY RH

(a) Interchange the side No. 2 airbag sensor assembly RH with LH and connect the connectors.





(b) Connect the cable to the negative (-) auxiliary terminal.

(c) Clear the DTCs stored in memory Separate Type Yaw Rate Sensor.

(d) Turn the power switch off.

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

(f) Check for DTCs Separate Type Yaw Rate Sensor.

Result:





HINT
Codes other than DTCs B1623 and B1628 are may be output at this time, but they are not related to this check.

(g) Turn the power switch off.

(h) Disconnect the cable from the negative (-) auxiliary terminal.

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

(i) Return the side No. 2 airbag sensor assembly RH and LH to their original positions and connect the connectors.

Text in Illustration





B -- REPLACE SIDE NO. 2 AIRBAG SENSOR ASSEMBLY RH Removal

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

A -- REPLACE AIRBAG SENSOR ASSEMBLY Removal

32. CHECK CONNECTORS

(a) Turn the power switch off.

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

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

(c) Check that the connectors are properly connected to the side airbag sensor assembly RH, side No. 2 airbag sensor assembly RH and door side airbag sensor RH. Also check that the connectors that link the No. 2 floor wire and front door wire RH are properly connected.

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 side airbag sensor assembly RH, side No. 2 airbag sensor assembly RH and door side airbag sensor RH. Also disconnect the connectors that link the No. 2 floor wire and front door wire RH.

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

OK:

The terminals are not deformed or damaged.

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

33. CHECK NO. 2 FLOOR WIRE (OPEN)

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





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

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

Standard Resistance:





(c) Disconnect the service wire from connector C.

Text in Illustration





NG -- REPLACE NO. 2 FLOOR WIRE
OK -- Continue to next step.

34. CHECK NO. 2 FLOOR WIRE (SHORT)

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





Standard Resistance:





Text in Illustration





NG -- REPLACE NO. 2 FLOOR WIRE
OK -- Continue to next step.

35. CHECK NO. 2 FLOOR WIRE (SHORT TO B+)

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





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

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

Standard Voltage:





(d) Turn the power switch off.

(e) Disconnect the cable from the negative (-) auxiliary terminal.

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

Text in Illustration





NG -- REPLACE NO. 2 FLOOR WIRE
OK -- Continue to next step.

36. CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND)

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





Standard Resistance:





Text in Illustration





NG -- REPLACE NO. 2 FLOOR WIRE
OK -- Continue to next step.

37. CHECK DOOR SIDE AIRBAG SENSOR RH CIRCUIT (OPEN)

(a) Connect the connectors that link the No. 2 floor wire and front door wire RH.





(b) Using a service wire, connect terminals 2 (BDR+) and 1 (BDR-) of connector E.

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

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

Standard Resistance:





Text in Illustration





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