From 10-2006

SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1627/82,B1628/82,B1637/82,B1638/82,B1647/82,B1648/82: Lost Communication with Front Passenger Side - Side Airbag Sensor Assembly

DTC B1627/82 - Lost Communication with Front Passenger Side - Side Airbag Sensor Assembly

DTC B1628/82 - Front Passenger Side - Side Airbag Sensor Assembly Initialization Incomplete

DTC B1637/82 - Lost Communication with Passenger Side Rear Airbag Sensor

DTC B1638/82 - Passenger Side Rear Airbag Sensor Initialization Incomplete

DTC B1647/82 - Lost Communication with Front Passenger Side Satellite Sensor Bus

DTC B1648/82 - Front Passenger Side Satellite Sensor Bus Initialization Incomplete

DESCRIPTION

The circuit for the side collision sensor RH (to determine deployment of the front seat side airbag assembly RH and curtain shield airbag assembly RH) is composed of the center airbag sensor assembly, side airbag sensor RH, and rear airbag sensor RH.
The side airbag sensor RH and rear airbag sensor RH detect impacts to the vehicle and send signals to the center airbag sensor assembly to determine if the airbag should be deployed.
DTC B1627/82, B1628/82, B1637/82, B1638/82, B1647/82, or B1648/82 is recorded when a malfunction is detected in the circuit for the side collision sensor RH (to determine deployment of the front seat side airbag assembly RH and curtain shield airbag assembly RH).

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC

(a) Turn the power switch on (IG), and wait for at least 60 seconds.
(b) Check the present DTCs DTC Check / Clear.

Result:

HINT:
- DTCs indicating communication errors will be changed to DTCs indicating errors in initialization by turning the power switch off and then on (IG) again.
- Codes other than present DTC B1627, B1628, B1637, B1638, B1647, B1648, and 82 may be output at this time, but they are not related to this check.

E -- USE SIMULATION METHOD TO CHECK
D -- CONFIRM PART NUMBER OF SIDE AIRBAG SENSOR
C -- CHECK CONNECTION OF CONNECTORS
B -- CHECK CONNECTION OF CONNECTORS
A -- Continue to next step.
2. CHECK PAST DTC
(a) Check the past DTCs DTC Check / Clear.

Result:

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

C -- CONFIRM PART NUMBER OF SIDE AIRBAG SENSOR
B -- CHECK CONNECTION OF CONNECTORS
A -- Continue to next step.
3. CHECK CONNECTION OF CONNECTORS
(a) Turn the power switch off.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) Check that the connectors are properly connected to the center airbag sensor assembly and the side airbag sensor RH.
OK:
The connectors are properly connected.
NG -- CONNECT CONNECTORS PROPERLY
OK -- Continue to next step.
4. CHECK CONNECTORS
(a) Disconnect the connectors from the center airbag sensor assembly and side airbag sensor RH.
(b) Check that the connectors (on the center airbag sensor assembly side and side airbag sensor RH side) are not damaged.
OK:
The connectors are not deformed or damaged.
NG -- REPAIR OR REPLACE FLOOR WIRE NO. 2
OK -- Continue to next step.
5. CHECK FLOOR WIRE NO. 2 (OPEN)

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

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

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

Standard resistance:

NG -- REPAIR OR REPLACE FLOOR WIRE NO. 2
OK -- Continue to next step.
6. CHECK FLOOR WIRE NO. 2 (SHORT)

(a) Disconnect the service wire from connector B.
(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:

NG -- REPAIR OR REPLACE FLOOR WIRE NO. 2
OK -- Continue to next step.
7. CHECK FLOOR WIRE NO. 2 (SHORT TO B+)

(a) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
(b) Turn the power switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.

Standard voltage:

NG -- REPAIR OR REPLACE FLOOR WIRE NO. 2
OK -- Continue to next step.
8. CHECK FLOOR WIRE NO. 2 (SHORT TO GROUND)

(a) Turn the power switch off.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) Measure the resistance according to the value(s) in the table below.

Standard resistance:

NG -- REPAIR OR REPLACE FLOOR WIRE NO. 2
OK -- Continue to next step.
9. CONFIRM PART NUMBER OF SIDE AIRBAG SENSOR
(a) Check that the part number of the side airbag sensor RH is equal to the number of the other side.
OK:
Those numbers are the same.
(b) Connect the connectors to the center airbag sensor assembly and the side airbag sensor RH.
NG -- REPLACE SIDE AIRBAG SENSOR RH
OK -- Continue to next step.
10. CHECK SIDE AIRBAG SENSOR RH

(a) Interchange the side airbag sensor LH with RH and connect the connectors to them.
(b) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
(c) Turn the power switch on (IG), and wait for at least 60 seconds.
(d) Clear the DTCs stored in the memory DTC Check / Clear.
(e) Turn the power switch off.
(f) Turn the power switch on (IG), and wait for at least 60 seconds.
(g) Check the DTCs DTC Check / Clear.

Result:

HINT: Codes other than DTC B1623, B1642, B1643, or 81 and B1628, B1647, B1648, or 82 may be output at this time, but they are not related to this check.

(h) Turn the power switch off.
(i) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(j) Return the side airbag sensor LH and RH to their original positions and connect the connectors to them.
C -- REPLACE SIDE AIRBAG SENSOR RH
B -- CHECK CONNECTION OF CONNECTOR
A -- USE SIMULATION METHOD TO CHECK
11. REPLACE SIDE AIRBAG SENSOR RH
(a) Replace the side airbag sensor RH Removal.

HINT: Perform inspection using parts from a normal vehicle if possible.

(b) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
(c) Turn the power switch on (IG), and wait for at least 60 seconds.
(d) Clear the DTCs stored in the memory DTC Check / Clear.
(e) Turn the power switch off.
(f) Turn the power switch on (IG), and wait for at least 60 seconds.
(g) Check for DTCs DTC Check / Clear.
OK:
DTC B1628, B1647, B1648, or 82 is not output.

HINT: Codes other than DTC B1628, B1647, B1648, and 82 may be output at this time, but they are not related to this check.

(h) Turn the power switch off.
(i) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
NG -- CHECK CONNECTION OF CONNECTOR
OK -- END
12. CHECK CONNECTION OF CONNECTOR
(a) Check that the connector is properly connected to the rear airbag sensor RH.
OK:
The connector is properly connected.
NG -- CONNECT CONNECTORS PROPERLY
OK -- Continue to next step.
13. CHECK CONNECTOR
(a) Disconnect the connectors from the rear airbag sensor RH.
(b) Check that the connector (on the rear airbag sensor RH side) is not damaged.
OK:
The connector is not deformed or damaged.
NG -- CONNECT CONNECTOR PROPERLY
OK -- Continue to next step.
14. CHECK FLOOR WIRE NO. 2 (OPEN)

(a) Disconnect the connector from the side airbag sensor RH.
(b) Using a service wire, connect terminals 2 (BCR+) and 1 (BCR-) of connector C.

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

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

Standard resistance:

NG -- REPAIR OR REPLACE FLOOR WIRE NO. 2
OK -- Continue to next step.
15. CHECK FLOOR WIRE NO. 2 (SHORT)

(a) Disconnect the service wire from connector C.
(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:

NG -- REPAIR OR REPLACE FLOOR WIRE NO. 2
OK -- Continue to next step.
16. CHECK FLOOR WIRE NO. 2 (SHORT TO B+)

NG -- REPAIR OR REPLACE FLOOR WIRE NO. 2
OK -- Continue to next step.
17. CHECK FLOOR WIRE NO. 2 (SHORT TO GROUND)

NG -- REPAIR OR REPLACE FLOOR WIRE NO. 2
OK -- Continue to next step.
18. CONFIRM PART NUMBER OF REAR AIRBAG SENSOR
(a) Check that the part number of the rear airbag sensor RH is equal to the number of the other side.
OK:
Those numbers are the same.
(b) Connect the connectors to the side airbag sensor RH and the rear airbag sensor RH.
NG -- REPLACE REAR AIRBAG SENSOR RH
OK -- Continue to next step.
19. CHECK REAR AIRBAG SENSOR RH

(a) Interchange the rear airbag sensor LH with RH and connect the connectors to them.
(b) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
(c) Turn the power switch on (IG), and wait for at least 60 seconds.
(d) Clear the DTCs stored in the memory DTC Check / Clear.
(e) Turn the power switch off.
(f) Turn the power switch on (IG), and wait for at least 60 seconds.
(g) Check the DTCs DTC Check / Clear.

Result:

C -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY
B -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY
A -- USE SIMULATION METHOD TO CHECK
22. CHECK CONNECTION OF CONNECTORS
(a) Turn the power switch off.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) Check that the connectors are properly connected to the side airbag sensor RH and the rear airbag sensor RH.
OK:
The connectors are properly connected.
NG -- CONNECT CONNECTORS PROPERLY
OK -- Continue to next step.
23. CHECK CONNECTORS
(a) Disconnect the connectors from the side airbag sensor RH and rear airbag sensor RH.
(b) Check that the connectors (on the side airbag sensor RH side and rear airbag sensor RH side) are not damaged.
OK:
The connectors are not deformed or damaged.
NG -- REPAIR OR REPLACE FLOOR WIRE NO. 2
OK -- Continue to next step.
24. CONFIRM PART NUMBER OF SIDE AIRBAG SENSOR
(a) Check that the part number of the side airbag sensor RH is equal to the number of the other side.
OK:
Those numbers are the same.
(b) Connect the connectors to the side airbag sensor RH and the rear airbag sensor RH.
NG -- REPLACE SIDE AIRBAG SENSOR RH
OK -- Continue to next step.
25. CHECK SIDE AIRBAG SENSOR RH
(a) Interchange the side airbag sensor LH with RH and connect the connectors to them.
(b) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
(c) Turn the power switch on (IG), and wait for at least 60 seconds.
(d) Clear the DTCs stored in the the memory DTC Check / Clear.
(e) Turn the power switch off.
(f) Turn the power switch on (IG), and wait for at least 60 seconds.
(g) Check the DTCs DTC Check / Clear.

Result:

HINT: Codes other than DTC B1632 or B1633 and B1637 or B1638 may be output at this time, but they are not related to this check.

(h) Turn the power switch off.
(i) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(j) Return the side airbag sensor LH and RH to their original positions and connect the connectors to them.
C -- REPLACE SIDE AIRBAG SENSOR RH
B -- CHECK FLOOR WIRE NO. 2 (OPEN)
A -- USE SIMULATION METHOD TO CHECK
26. REPLACE SIDE AIRBAG SENSOR RH
(a) Replace the side airbag sensor RH Removal.

HINT: Perform inspection using parts from a normal vehicle if possible.

(b) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
(c) Turn the power switch on (IG), and wait for at least 60 seconds.
(d) Clear the DTCs stored in the memory DTC Check / Clear.
(e) Turn the power switch off.
(f) Turn the power switch on (IG), and wait for at least 60 seconds.
(g) Check for DTCs DTC Check / Clear.
OK:
DTC B1637 or B1638 is not output.

HINT: Codes other than DTC B1637 and B1638 may be output at this time, but they are not related to this check.

(h) Turn the power switch
(i) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
NG -- CHECK FLOOR WIRE NO. 2 (OPEN)
OK -- END
27. CHECK FLOOR WIRE NO. 2 (OPEN)

(a) Disconnect the connectors from the side airbag sensor RH and rear airbag sensor RH.
(b) Using a service wire, connect terminals 2 (BCR+) and 1 (BCR-) of connector C.

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

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

Standard resistance:

NG -- REPAIR OR REPLACE FLOOR WIRE NO. 2
OK -- Continue to next step.
28. CHECK FLOOR WIRE NO. 2 (SHORT)

(a) Disconnect the service wire from connector C.
(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:

NG -- REPAIR OR REPLACE FLOOR WIRE NO. 2
OK -- Continue to next step.
29. CHECK FLOOR WIRE NO. 2 (SHORT TO B+)

NG -- REPAIR OR REPLACE FLOOR WIRE NO. 2
OK -- Continue to next step.
30. CHECK FLOOR WIRE NO. 2 (SHORT TO GROUND)

NG -- REPAIR OR REPLACE FLOOR WIRE NO. 2
OK -- Continue to next step.
31. CONFIRM PART NUMBER OF REAR AIRBAG SENSOR
(a) Check that the part number of the rear airbag sensor RH is equal to the number of the other side.
OK:
Those numbers are the same.
(b) Connect the connectors to the side airbag sensor RH and the rear airbag sensor RH.
NG -- REPLACE REAR AIRBAG SENSOR RH
OK -- Continue to next step.
32. CHECK REAR AIRBAG SENSOR RH
(a) Interchange the rear airbag sensor LH with RH and connect the connectors to them.
(b) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
(c) Turn the power switch on (IG), and wait for at least 60 seconds.
(d) Clear the DTCs stored in the memory DTC Check / Clear.
(e) Turn the power switch off.
(f) Turn the power switch on (IG), and wait for at least 60 seconds.
(g) Check the DTCs DTC Check / Clear.

Result:

HINT: Codes other than DTC B1632 or B1633 and B1637 or B1638 may be output at this time, but they are not related to this check.

(h) Turn the power switch off.
(i) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(j) Return the rear airbag sensor LH and RH to their original positions and connect the connectors to them.
C -- REPLACE REAR AIRBAG SENSOR RH
B -- CHECK CENTER AIRBAG SENSOR ASSEMBLY
A -- USE SIMULATION METHOD TO CHECK
33. REPLACE REAR AIRBAG SENSOR RH
(a) Replace the rear airbag sensor RH Removal.

HINT: Perform inspection using parts from a normal vehicle if possible.

NEXT -- Continue to next step.
34. CHECK CENTER AIRBAG SENSOR ASSEMBLY
(a) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
(b) Turn the power switch on (IG), and wait for at least 60 seconds.
(c) Clear the DTCs stored in the memory DTC Check / Clear.
(d) Turn the power switch off.
(e) Turn the power switch on (IG), and wait for at least 60 seconds.
(f) Check the DTCs DTC Check / Clear.
OK:
DTC DTC B1637 or B1638 is output. is not output.

HINT: Codes other than DTC B1637 and B1638 may be output at this time, but they are not related to this check.

Result:

C -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY
B -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY
A -- USE SIMULATION METHOD TO CHECK
35. CONFIRM PART NUMBER OF SIDE AIRBAG SENSOR
(a) Turn the power switch off.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) Check that the part number of the side airbag sensor RH is equal to the number of the other side.
OK:
Those numbers are the same.
NG -- REPLACE SIDE AIRBAG SENSOR RH
OK -- Continue to next step.
36. CHECK SIDE AIRBAG SENSOR RH

HINT: Codes other than DTC B1622 and B1627 may be output at this time, but they are not related to this check.

(h) Turn the power switch off.
(i) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(j) Return the side airbag sensor LH and RH to their original positions and connect the connectors to them.
C -- REPLACE SIDE AIRBAG SENSOR RH
B -- CHECK CENTER AIRBAG SENSOR ASSEMBLY
A -- USE SIMULATION METHOD TO CHECK
37. REPLACE SIDE AIRBAG SENSOR RH
(a) Replace the side airbag sensor RH Removal.

HINT: Perform inspection using parts from a normal vehicle if possible.

NEXT -- Continue to next step.
38. CHECK CENTER AIRBAG SENSOR ASSEMBLY
(a) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
(b) Turn the power switch on (IG), and wait for at least 60 seconds.
(c) Clear the DTCs stored in the memory DTC Check / Clear.
(d) Turn the power switch off.
(e) Turn the power switch on (IG), and wait for at least 60 seconds.
(f) Check the DTCs DTC Check / Clear.
OK:
DTC B1627 is not output.

HINT: Codes other than DTC B1627 may be output at this time, but they are not related to this check.

Result:

C -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY
B -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY
A -- USE SIMULATION METHOD TO CHECK