Part 4

SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B1627/82, B1628/82, B1637/82, B1638/82, B1647/82, B1697/82, B1698/82: Lost communication with Side Airbag Sensor LH
B1698/82 - Door Side Airbag Sensor LH Initialization Incomplete (Continued)

45. CHECK DOOR SIDE AIRBAG SENSOR LH CIRCUIT (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 LH (SHORT)
OK -- Continue to next step.

46. CHECK DOOR SIDE AIRBAG SENSOR LH CIRCUIT (SHORT TO B+)

(a) Connect the cable to the negative (-) auxiliary 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 LH (SHORT TO B+)
OK -- Continue to next step.

47. CHECK DOOR SIDE AIRBAG SENSOR LH CIRCUIT (SHORT TO GROUND)

(a) Turn the power switch off.





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

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

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

Standard Resistance:





Text in Illustration





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

48. CHECK DOOR SIDE AIRBAG SENSOR LH

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





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

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

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

(e) Clear the DTCs stored in 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 DTCs B1692, B1693, B1697 and B1698 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 DOOR SIDE AIRBAG SENSOR LH Removal
A -- Continue to next step.

49. CHECK NO. 2 SIDE AIRBAG SENSOR ASSEMBLY LH

(a) Turn the power switch off.





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

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

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

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

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

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

(g) Clear the DTCs stored in 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 DTCs B1692, B1693, B1697 and B1698 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 NO. 2 SIDE AIRBAG SENSOR ASSEMBLY LH Removal

A -- REPLACE AIRBAG SENSOR ASSEMBLY Removal

50. CHECK CURRENT DTC

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

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

Result:





HINT
Codes other than current DTCs B1627 and B1637 may be output at this time, but they are not related to this check.

B -- CHECK NO. 2 SIDE AIRBAG SENSOR ASSEMBLY LH
A -- Continue to next step.

51. CHECK SIDE AIRBAG SENSOR ASSEMBLY LH

(a) Turn the power switch off.





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

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

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

(d) Connect the cable to the negative (-) auxiliary battery terminal.

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

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

(g) Turn the power switch off.

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

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

Result:





Text in Illustration





HINT
Codes other than DTCs B1622 and B1627 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 ASSEMBLY LH Removal

A -- REPLACE AIRBAG SENSOR ASSEMBLY Removal

52. CHECK NO. 2 SIDE AIRBAG SENSOR ASSEMBLY LH

(a) Turn the power switch off.





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

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

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

(d) Connect the cable to the negative (-) auxiliary battery terminal.

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

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

(g) Turn the power switch off.

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

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

Result:





Text in Illustration





HINT
Codes other than DTCs B1632 and B1637 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 NO. 2 SIDE AIRBAG SENSOR ASSEMBLY LH Removal

A -- REPLACE AIRBAG SENSOR ASSEMBLY Removal

53. CHECK FRONT DOOR WIRE LH (OPEN)

(a) Disconnect the front door wire LH connector from the floor wire.





HINT
SST has already been inserted into connector E.

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

Standard Resistance:





Text in Illustration





NG -- REPLACE FRONT DOOR WIRE LH

OK -- REPLACE FLOOR WIRE

54. CHECK FRONT DOOR WIRE LH (SHORT)

(a) Disconnect the front door wire LH connector from the floor wire.





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

Standard Resistance:





Text in Illustration





NG -- REPLACE FRONT DOOR WIRE LH

OK -- REPLACE FLOOR WIRE

55. CHECK FRONT DOOR WIRE LH (SHORT TO B+)

(a) Turn the power switch off.





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

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

(c) Disconnect the front door wire LH connector from the floor wire.

(d) Connect the cable to the negative (-) auxiliary battery terminal.

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

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

Standard Voltage:





Text in Illustration





NG -- REPLACE FRONT DOOR WIRE LH

OK -- REPLACE FLOOR WIRE

56. CHECK FRONT DOOR WIRE LH (SHORT TO GROUND)

(a) Disconnect the front door wire LH connector from the floor wire.





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

Standard Resistance:





Text in Illustration





NG -- REPLACE FRONT DOOR WIRE LH

OK -- REPLACE FLOOR WIRE