| DTC Code | DTC Name |
|---|---|
| B1622/81 | Lost communication with Side Airbag Sensor RH |
| B1623/81 | Side Airbag Sensor Assembly RH Initialization Incomplete |
| B1632/81 | Lost Communication with Rear Airbag Sensor RH |
| B1633/81 | Rear Airbag Sensor Assembly RH Initialization Incomplete |
| B1642/81 | Lost Communication with Side Satellite Sensor Bus RH |
DESCRIPTION
The side collision sensor RH circuit (to determine deployment of the front seat airbag assembly RH, rear seat airbag assembly RH and curtain shield airbag assembly RH) is composed of the airbag sensor assembly, side airbag sensor assembly RH and rear airbag sensor RH.
The side airbag sensor assembly RH and rear airbag sensor RH detect impacts to the vehicle and send signals to the airbag sensor assembly to determine if the airbags should be deployed.
These DTCs are stored when a malfunction is detected for the side collision sensor RH circuit.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B1622/81 B1623/81 B1632/81 B1633/81 B1642/81 |
|
|
WIRING DIAGRAM
INSPECTION PROCEDURE
Note
After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work Click here.
PROCEDURE
CHECK CURRENT DTC
Check for current DTCs Click here.
| Result | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Tech Tips
DTCs indicating communication errors will be changed to DTCs indicating errors in initialization by turning the engine switch off and then on (IG) again.
Codes other than current DTCs B1622, B1623, B1632, B1633, B1642 and 81 may be output at this time, but they are not related to this check.
| B |
|
CHECK HISTORY DTC Click here |
| C |
|
CHECK CONNECTORS Click here |
| D |
|
CHECK SIDE AIRBAG SENSOR ASSEMBLY RH Click here |
| E |
|
USE SIMULATION METHOD TO CHECK Click here |
| A |
|
CHECK CONNECTORS
Turn the engine switch off.
Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Check that the connectors are properly connected to the airbag sensor assembly, side airbag sensor assembly RH and rear airbag sensor RH.
| OK |
|---|
| The connectors are properly connected. |
Tech Tips
If the connectors are not connected securely, reconnect the connectors and proceed to the next inspection.
Disconnect the connectors from the airbag sensor assembly, side airbag sensor assembly RH and rear airbag sensor RH.
Check that the terminals of the connectors are not damaged.
| OK |
|---|
| The terminals are not deformed or damaged. |
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (OPEN)
| *1 | Side Airbag Sensor Assembly RH |
| *2 | Airbag Sensor Assembly |
| *3 | No. 2 Floor Wire |
| *4 | Service Wire |
| *a | Front view of wire harness connector (to Airbag Sensor Assembly) |
| *b | Front view of wire harness connector (to Side Airbag Sensor Assembly RH) |
Using a service wire, connect terminals 17 (BBR+) and 18 (BBR-) of connector B.
Note
Do not forcibly insert the service wire into the terminals of the connector when connecting the wire.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
Disconnect the service wire from connector B.
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT)
| *1 | Side Airbag Sensor Assembly RH |
| *2 | Airbag Sensor Assembly |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Side Airbag Sensor Assembly RH) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO B+)
| *1 | Side Airbag Sensor Assembly RH |
| *2 | Airbag Sensor Assembly |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Side Airbag Sensor Assembly RH) |
Connect the cable to the negative (-) battery terminal.
Turn the engine switch on (IG).
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Turn the engine switch off.
Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND)
| *1 | Side Airbag Sensor Assembly RH |
| *2 | Airbag Sensor Assembly |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Side Airbag Sensor Assembly RH) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (OPEN)
| *1 | Rear Airbag Sensor RH |
| *2 | Side Airbag Sensor Assembly RH |
| *3 | No. 2 Floor Wire |
| *4 | Service Wire |
| *a | Front view of wire harness connector (to Side Airbag Sensor Assembly RH) |
| *b | Front view of wire harness connector (to Rear Airbag Sensor RH) |
Using a service wire, connect terminals 2 (BCR+) and 1 (BCR-) of connector C.
Note
Do not forcibly insert the service wire into the terminals of the connector when connecting the wire.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
Disconnect the service wire from connector C.
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT)
| *1 | Rear Airbag Sensor RH |
| *2 | Side Airbag Sensor Assembly RH |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Side Airbag Sensor Assembly RH) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO B+)
| *1 | Rear Airbag Sensor RH |
| *2 | Side Airbag Sensor Assembly RH |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Side Airbag Sensor Assembly RH) |
Connect the cable to the negative (-) battery terminal.
Turn the engine switch on (IG).
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Turn the engine switch off.
Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND)
| *1 | Rear Airbag Sensor RH |
| *2 | Side Airbag Sensor Assembly RH |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Side Airbag Sensor Assembly RH) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK SIDE AIRBAG SENSOR ASSEMBLY RH
| *1 | Side Airbag Sensor Assembly LH |
| *2 | Airbag Sensor Assembly |
Connect the connectors to the rear airbag sensor RH and airbag sensor assembly.
Interchange the side airbag sensor assembly RH with LH and connect the connectors.
Connect the cable to the negative (-) battery terminal.
Clear the DTCs stored in memory Click here.
Turn the engine switch off.
Turn the engine switch on (IG), and wait for at least 60 seconds.
Check for DTCs Click here.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Tech Tips
Codes other than DTCs B1642, B1647, 81 and 82 may be output at this time, but they are not related to this check.
Turn the engine switch off.
Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Return the side airbag sensor assembly RH and LH to their original positions and connect the connectors.
| B |
|
REPLACE SIDE AIRBAG SENSOR ASSEMBLY RH Click here |
| C |
|
USE SIMULATION METHOD TO CHECK Click here |
| A |
|
CHECK REAR AIRBAG SENSOR RH
| *1 | Rear Airbag Sensor LH |
| *2 | Side Airbag Sensor Assembly RH |
Interchange the rear airbag sensor RH with LH and connect the connectors.
Connect the cable to the negative (-) battery terminal.
Clear the DTCs stored in memory Click here.
Turn the engine switch off.
Turn the engine switch on (IG), and wait for at least 60 seconds.
Check for DTCs Click here.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Tech Tips
Codes other than DTCs B1642, B1647, 81 and 82 may be output at this time, but they are not related to this check.
Turn the engine switch off.
Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Return the rear airbag sensor RH and LH to their original positions and connect the connectors.
| B |
|
REPLACE AIRBAG SENSOR ASSEMBLY Click here |
| C |
|
REPLACE REAR AIRBAG SENSOR RH Click here |
| A |
|
USE SIMULATION METHOD TO CHECK Click here
CHECK HISTORY DTC
Check for history DTCs Click here.
| Result | ||||||
|---|---|---|---|---|---|---|
|
Tech Tips
Codes other than history DTC B1622 may be output at this time, but they are not related to this check.
| B |
|
CHECK SIDE AIRBAG SENSOR ASSEMBLY RH Click here |
| A |
|
CHECK CONNECTORS
Turn the engine switch off.
Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Check that the connectors are properly connected to the airbag sensor assembly and side airbag sensor assembly RH.
| OK |
|---|
| The connectors are properly connected. |
Tech Tips
If the connectors are not connected securely, reconnect the connectors and proceed to the next inspection.
Disconnect the connectors from the airbag sensor assembly and side airbag sensor assembly RH.
Check that the terminals of the connectors are not damaged.
| OK |
|---|
| The terminals are not deformed or damaged. |
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (OPEN)
| *1 | Side Airbag Sensor Assembly RH |
| *2 | Airbag Sensor Assembly |
| *3 | No. 2 Floor Wire |
| *4 | Service Wire |
| *a | Front view of wire harness connector (to Airbag Sensor Assembly) |
| *b | Front view of wire harness connector (to Side Airbag Sensor Assembly RH) |
Using a service wire, connect terminals 17 (BBR+) and 18 (BBR-) of connector B.
Note
Do not forcibly insert the service wire into the terminals of the connector when connecting the wire.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
Disconnect the service wire from connector B.
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT)
| *1 | Side Airbag Sensor Assembly RH |
| *2 | Airbag Sensor Assembly |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Side Airbag Sensor Assembly RH) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO B+)
| *1 | Side Airbag Sensor Assembly RH |
| *2 | Airbag Sensor Assembly |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Side Airbag Sensor Assembly RH) |
Connect the cable to the negative (-) battery terminal.
Turn the engine switch on (IG).
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Turn the engine switch off.
Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND)
| *1 | Side Airbag Sensor Assembly RH |
| *2 | Airbag Sensor Assembly |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Side Airbag Sensor Assembly RH) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK SIDE AIRBAG SENSOR ASSEMBLY RH
| *1 | Side Airbag Sensor Assembly LH |
| *2 | Airbag Sensor Assembly |
Connect the connector to the airbag sensor assembly.
Interchange the side airbag sensor assembly RH with LH and connect the connectors.
Connect the cable to the negative (-) battery terminal.
Clear the DTCs stored in memory Click here.
Turn the engine switch off.
Turn the engine switch on (IG), and wait for at least 60 seconds.
Check for DTCs Click here.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Tech Tips
Codes other than DTCs B1623 and B1628 may be output at this time, but they are not related to this check.
Turn the engine switch off.
Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Return the side airbag sensor assembly RH and LH to their original positions and connect the connectors.
| B |
|
REPLACE AIRBAG SENSOR ASSEMBLY Click here |
| C |
|
REPLACE SIDE AIRBAG SENSOR ASSEMBLY RH Click here |
| A |
|
USE SIMULATION METHOD TO CHECK Click here
CHECK CONNECTORS
Turn the engine switch off.
Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Check that the connectors are properly connected to the side airbag sensor assembly RH and rear airbag sensor RH.
| OK |
|---|
| The connectors are properly connected. |
Tech Tips
If the connectors are not connected securely, reconnect the connectors and proceed to the next inspection.
Disconnect the connectors from the side airbag sensor assembly RH and rear airbag sensor RH.
Check that the terminals of the connectors are not damaged.
| OK |
|---|
| The terminals are not deformed or damaged. |
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (OPEN)
| *1 | Rear Airbag Sensor RH |
| *2 | Side Airbag Sensor Assembly RH |
| *3 | No. 2 Floor Wire |
| *4 | Service Wire |
| *a | Front view of wire harness connector (to Side Airbag Sensor Assembly RH) |
| *b | Front view of wire harness connector (to Rear Airbag Sensor RH) |
Using a service wire, connect terminals 2 (BCR+) and 1 (BCR-) of connector C.
Note
Do not forcibly insert the service wire into the terminals of the connector when connecting the wire.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
Disconnect the service wire from connector C.
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT)
| *1 | Rear Airbag Sensor RH |
| *2 | Side Airbag Sensor Assembly RH |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Side Airbag Sensor Assembly RH) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO B+)
| *1 | Rear Airbag Sensor RH |
| *2 | Side Airbag Sensor Assembly RH |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Side Airbag Sensor Assembly RH) |
Connect the cable to the negative (-) battery terminal.
Turn the engine switch on (IG).
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Turn the engine switch off.
Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND)
| *1 | Rear Airbag Sensor RH |
| *2 | Side Airbag Sensor Assembly RH |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Side Airbag Sensor Assembly RH) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK SIDE AIRBAG SENSOR ASSEMBLY RH
| *1 | Side Airbag Sensor Assembly LH |
| *2 | Airbag Sensor Assembly |
Connect the connector to the rear airbag sensor RH.
Interchange the side airbag sensor assembly RH with LH and connect the connectors.
Connect the cable to the negative (-) battery terminal.
Clear the DTCs stored in memory Click here.
Turn the engine switch off.
Turn the engine switch on (IG), and wait for at least 60 seconds.
Check for DTCs Click here.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Tech Tips
Codes other than DTCs B1632, B1633, B1637 and B1638 may be output at this time, but they are not related to this check.
Turn the engine switch off.
Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Return the side airbag sensor assembly RH and LH to their original positions and connect the connectors.
| B |
|
REPLACE SIDE AIRBAG SENSOR ASSEMBLY RH Click here |
| C |
|
USE SIMULATION METHOD TO CHECK Click here |
| A |
|
CHECK REAR AIRBAG SENSOR RH
| *1 | Rear Airbag Sensor LH |
| *2 | Side Airbag Sensor Assembly RH |
Interchange the rear airbag sensor RH with LH and connect the connectors.
Connect the cable to the negative (-) battery terminal.
Clear the DTCs stored in memory Click here.
Turn the engine switch off.
Turn the engine switch on (IG), and wait for at least 60 seconds.
Check for DTCs Click here.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Tech Tips
Codes other than DTCs B1632, B1633, B1637 and B1638 may be output at this time, but they are not related to this check.
Turn the engine switch off.
Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Return the rear airbag sensor RH and LH to their original positions and connect the connectors.
| B |
|
REPLACE AIRBAG SENSOR ASSEMBLY Click here |
| C |
|
REPLACE REAR AIRBAG SENSOR RH Click here |
| A |
|
USE SIMULATION METHOD TO CHECK Click here
CHECK SIDE AIRBAG SENSOR ASSEMBLY RH
| *1 | Side Airbag Sensor Assembly LH |
| *2 | Airbag Sensor Assembly |
Turn the engine switch off.
Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Interchange the side airbag sensor assembly RH with LH and connect the connectors.
Connect the cable to the negative (-) battery terminal.
Clear the DTCs stored in memory Click here.
Turn the engine switch off.
Turn the engine switch on (IG), and wait for at least 60 seconds.
Check for DTCs Click here.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Tech Tips
Codes other than DTCs B1622 and B1627 may be output at this time, but they are not related to this check.
Turn the engine switch off.
Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Return the side airbag sensor assembly RH and LH to their original positions and connect the connectors.
| B |
|
REPLACE AIRBAG SENSOR ASSEMBLY Click here |
| C |
|
REPLACE SIDE AIRBAG SENSOR ASSEMBLY RH Click here |
| A |
|
USE SIMULATION METHOD TO CHECK Click here