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 Driver Side - Side Airbag Sensor Assembly
B1693/81 - Driver Side Door Side Airbag Sensor Initialization Incomplete

(continued)

Text in Illustration

Text in Illustration:

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

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

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

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

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

(d) Turn the ignition switch to ON, and wait for at least 60 seconds.

(e) Clear the DTCs stored in the the memory DTC Check / Clear.

(f) Turn the ignition switch off.

(g) Turn the ignition switch to ON, and wait for at least 60 seconds.

(h) Check for DTCs DTC Check / Clear.

Result:

Text in Illustration

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 LH (FOR REAR SIDE) Removal
A -- Continue to next step.

17. CHECK REAR AIRBAG SENSOR LH

(a) Turn the ignition switch off.

(b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.

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

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

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

(f) Turn the ignition switch to ON, and wait for at least 60 seconds.

(g) Clear the DTCs stored in the memory DTC Check / Clear.

(h) Turn the ignition switch off.

(i) Turn the ignition switch to ON, and wait for at least 60 seconds.

(j) Check for DTCs DTC Check / Clear.

Result:

Text in Illustration

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 LH Removal
A -- Continue to next step.

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

(a) Turn the ignition switch off.

(b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.

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

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

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

(f) Turn the ignition switch to ON, and wait for at least 60 seconds.

(g) Clear the DTCs stored in the memory DTC Check / Clear.

(h) Turn the ignition switch off.

(i) Turn the ignition switch to ON, and wait for at least 60 seconds.

(j) Check for DTCs DTC Check / Clear.

Result:

Text in Illustration

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 LH (FOR FRONT SIDE) Smart Key System (for Start Function)

A -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY Removal

19. 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

Text in Illustration:

NG -- REPLACE FRONT DOOR WIRE LH

OK -- REPLACE FLOOR WIRE

20. 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

Text in Illustration:

NG -- REPLACE FRONT DOOR WIRE LH

OK -- REPLACE FLOOR WIRE

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

(a) Turn the ignition switch off.

(b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.

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

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

(e) Turn the ignition switch to ON.

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

Standard Voltage:

Text in Illustration

Text in Illustration:

NG -- REPLACE FRONT DOOR WIRE LH

OK -- REPLACE FLOOR WIRE

22. 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

Text in Illustration:

NG -- REPLACE FRONT DOOR WIRE LH

OK -- REPLACE FLOOR WIRE

23. CHECK PAST DTC

(a) Turn the ignition switch to ON, and wait for at least 60 seconds.

(b) Check for past DTCs DTC Check / Clear.

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 LH

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

24. CHECK PRESENT DTC

(a) Turn the ignition switch to ON, and wait for at least 60 seconds.

(b) Check for present DTCs DTC Check / Clear.

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.

25. CHECK CONNECTORS

(a) Turn the ignition switch off.

(b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.

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

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 LH (for rear side) and rear airbag sensor LH.

(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.

26. CHECK FLOOR WIRE (OPEN)

(a) Using SST, connect terminals 8 (BBD+) and 15 (BBD-) 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

Text in Illustration:

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

27. 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

Text in Illustration:

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

28. CHECK FLOOR WIRE (SHORT TO B+)

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

(b) Turn the ignition switch to ON.

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

Standard Voltage:

Text in Illustration

Text in Illustration:

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

29. CHECK FLOOR WIRE (SHORT TO GROUND)

(a) Turn the ignition switch off.

(b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.

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

Standard Resistance:

Text in Illustration

Text in Illustration:

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

30. CHECK FLOOR WIRE (OPEN)

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