| DTC Code | DTC Name |
|---|---|
| B1627/82 | Lost communication with Side Airbag Sensor LH |
| B1628/82 | Side Airbag Sensor Assembly LH Initialization Incomplete |
| B1637/82 | Lost Communication with Rear Airbag Sensor LH |
| B1638/82 | Rear Airbag Sensor Assembly LH Initialization Incomplete |
| B1647/82 | Lost Communication with Side Satellite Sensor Bus LH |
| B1697/82 | Lost Communication with Door Side Airbag Sensor LH |
| B1698/82 | Door Side Airbag Sensor LH Initialization Incomplete |
DESCRIPTION
The side collision sensor LH circuit (to determine deployment of the front seat airbag assembly LH, curtain shield airbag assembly LH and front seat outer belt assembly LH) consists of the airbag ECU assembly, side airbag sensor assembly LH, rear airbag sensor LH and door side airbag sensor LH.
The side airbag sensor assembly LH, rear airbag sensor LH and door side airbag sensor LH detect impacts to the vehicle and send signals to the airbag ECU assembly to determine if the airbags and pretensioner should be deployed.
These DTCs are stored when a malfunction is detected in the side collision sensor LH circuit.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Test Mode / Check Mode |
|---|---|---|---|---|
| B1627/82 | Lost communication with Side Airbag Sensor LH |
|
|
Does not apply to test/check mode |
| B1628/82 | Side Airbag Sensor Assembly LH Initialization Incomplete |
|
|
Does not apply to test/check mode |
| B1637/82 | Lost Communication with Rear Airbag Sensor LH |
|
|
Does not apply to test/check mode |
| B1638/82 | Rear Airbag Sensor Assembly LH Initialization Incomplete |
|
|
Does not apply to test/check mode |
| B1647/82 | Lost Communication with Side Satellite Sensor Bus LH |
|
|
Does not apply to test/check mode |
| B1697/82 | Lost Communication with Door Side Airbag Sensor LH |
|
|
Does not apply to test/check mode |
| B1698/82 | Door Side Airbag Sensor LH Initialization Incomplete |
|
|
Does not apply to test/check mode |
WIRING DIAGRAM
| *a | Rear Airbag Sensor LH |
| *b | Door Side Airbag Sensor LH |
| *c | Side Airbag Sensor Assembly LH |
| *d | Airbag ECU Assembly |
CAUTION / NOTICE / HINT
Note
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
PROCEDURE
CHECK CURRENT DTC
Check for current DTCs.
Tech Tips
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 current DTCs B1627, B1628, B1637, B1638, B1647, B1697, B1698 and 82 may be output at this time, but they are not related to this check.
| Result | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| B |
|
CHECK HISTORY DTC Click here |
| C |
|
CHECK HISTORY DTC Click here |
| D |
|
CHECK CONNECTORS Click here |
| E |
|
CHECK REAR AIRBAG SENSOR LH Click here |
| F |
|
CHECK SIDE AIRBAG SENSOR ASSEMBLY LH Click here |
| G |
|
USE SIMULATION METHOD TO CHECK Click here |
| A |
|
CHECK CONNECTORS
Turn the power switch off.
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.
Check that the connectors are properly connected to the airbag ECU assembly, side airbag sensor assembly LH, rear airbag sensor LH and door side airbag sensor LH. Also check that the connectors that link the No. 2 floor wire and front door wire LH are properly connected.
| OK |
|---|
| The connectors are properly connected. |
Tech Tips
If the connectors are not properly connected, reconnect the connectors and proceed to the next inspection.
Disconnect the connectors from the airbag ECU assembly, side airbag sensor assembly LH, rear airbag sensor LH and door side airbag sensor LH. Also disconnect the connectors that link the No. 2 floor wire and front door wire LH.
Check that the terminals of the connectors are not deformed or damaged.
| OK |
|---|
| The terminals are not deformed or damaged. |
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE WIRE HARNESS |
| OK |
|
CHECK NO. 2 FLOOR WIRE (OPEN)
| *1 | Rear Airbag Sensor LH |
| *2 | Airbag ECU Assembly |
| *3 | No. 2 Floor Wire |
| *4 | Service Wire |
| *a | Front view of wire harness connector (to Airbag ECU Assembly) |
| *b | Front view of wire harness connector (to Rear Airbag Sensor LH) |
Using a service wire, connect terminals 17 (BBL+) and 18 (BBL-) 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.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT)
| *1 | Rear Airbag Sensor LH |
| *2 | Airbag ECU Assembly |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Rear Airbag Sensor LH) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO B+)
| *1 | Rear Airbag Sensor LH |
| *2 | Airbag ECU Assembly |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Rear Airbag Sensor LH) |
Connect the cable to the negative (-) auxiliary battery terminal.
Turn the power switch on (IG).
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Turn the power switch off.
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.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND)
| *1 | Rear Airbag Sensor LH |
| *2 | Airbag ECU Assembly |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Rear Airbag Sensor LH) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (OPEN)
| *1 | Side Airbag Sensor Assembly LH |
| *2 | Rear Airbag Sensor LH |
| *3 | No. 2 Floor Wire |
| *4 | Service Wire |
| *a | Front view of wire harness connector (to Rear Airbag Sensor LH) |
| *b | Front view of wire harness connector (to Side Airbag Sensor Assembly LH) |
Using a service wire, connect terminals 4 (BBL+) and 3 (BBL-) 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.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT)
| *1 | Side Airbag Sensor Assembly LH |
| *2 | Rear Airbag Sensor LH |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Rear Airbag Sensor LH) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO B+)
| *1 | Side Airbag Sensor Assembly LH |
| *2 | Rear Airbag Sensor LH |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Rear Airbag Sensor LH) |
Connect the cable to the negative (-) auxiliary battery terminal.
Turn the power switch on (IG).
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Turn the power switch off.
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.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND)
| *1 | Side Airbag Sensor Assembly LH |
| *2 | Rear Airbag Sensor LH |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Rear Airbag Sensor LH) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK WIRE HARNESS (OPEN)
| *1 | Door Side Airbag Sensor LH |
| *2 | Side Airbag Sensor Assembly LH |
| *3 | Service Wire |
| *a | Front view of wire harness connector (to Side Airbag Sensor Assembly LH) |
| *b | Front view of wire harness connector (to Door Side Airbag Sensor LH) |
Connect the connectors that link the No. 2 floor wire and front door wire LH.
Using a service wire, connect terminals 1 (BDL+) and 2 (BDL-) 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 | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
CHECK NO. 2 FLOOR WIRE (OPEN) Click here |
| OK |
|
CHECK WIRE HARNESS (SHORT)
| *1 | Door Side Airbag Sensor LH |
| *2 | Side Airbag Sensor Assembly LH |
| *a | Front view of wire harness connector (to Door Side Airbag Sensor LH) |
Disconnect the service wire from connector B.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
CHECK NO. 2 FLOOR WIRE (SHORT) Click here |
| OK |
|
CHECK WIRE HARNESS (SHORT TO B+)
| *1 | Door Side Airbag Sensor LH |
| *2 | Side Airbag Sensor Assembly LH |
| *a | Front view of wire harness connector (to Door Side Airbag Sensor LH) |
Connect the cable to the negative (-) auxiliary battery terminal.
Turn the power switch on (IG).
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Turn the power switch off.
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.
| Result | |||
|---|---|---|---|
|
| NG |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO B+) Click here |
| OK |
|
CHECK WIRE HARNESS (SHORT TO GROUND)
| *1 | Door Side Airbag Sensor LH |
| *2 | Side Airbag Sensor Assembly LH |
| *a | Front view of wire harness connector (to Door Side Airbag Sensor LH) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND) Click here |
| OK |
|
CHECK REAR AIRBAG SENSOR LH
| *1 | Rear Airbag Sensor RH |
| *2 | Airbag ECU Assembly |
Connect the connectors to the side airbag sensor assembly LH, door side airbag sensor LH and airbag ECU assembly.
Interchange the rear airbag sensor LH with RH and connect the connectors.
Connect the cable to the negative (-) auxiliary battery terminal.
Clear the DTCs stored in memory.
Turn the power switch off.
Turn the power switch on (IG), and wait for at least 60 seconds.
Check for DTCs.
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.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Turn the power switch off.
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.
Return the rear airbag sensor LH and RH to their original positions and connect the connectors.
| B |
|
REPLACE REAR AIRBAG SENSOR LH Click here |
| C |
|
USE SIMULATION METHOD TO CHECK Click here |
| A |
|
CHECK SIDE AIRBAG SENSOR ASSEMBLY LH
| *1 | Side Airbag Sensor Assembly RH |
| *2 | Rear Airbag Sensor LH |
Interchange the side airbag sensor assembly LH with RH and connect the connectors.
Connect the cable to the negative (-) auxiliary battery terminal.
Clear the DTCs stored in memory.
Turn the power switch off.
Turn the power switch on (IG), and wait for at least 60 seconds.
Check for DTCs.
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.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Turn the power switch off.
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.
Return the side airbag sensor assembly LH and RH to their original positions and connect the connectors.
| B |
|
REPLACE SIDE AIRBAG SENSOR ASSEMBLY LH Click here |
| C |
|
USE SIMULATION METHOD TO CHECK Click here |
| A |
|
CHECK DOOR SIDE AIRBAG SENSOR LH
| *1 | Door Side Airbag Sensor RH |
| *2 | Side Airbag Sensor Assembly LH |
Interchange the door side airbag sensor LH with RH and connect the connectors.
Connect the cable to the negative (-) auxiliary battery terminal.
Clear the DTCs stored in memory.
Turn the power switch off.
Turn the power switch on (IG), and wait for at least 60 seconds.
Check for DTCs.
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.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Turn the power switch off.
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.
Return the door side airbag sensor LH and RH to their original positions and connect the connectors.
| A |
|
REPLACE AIRBAG ECU ASSEMBLY Click here |
| B |
|
REPLACE DOOR SIDE AIRBAG SENSOR LH Click here |
| C |
|
USE SIMULATION METHOD TO CHECK Click here |
CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND)
| *1 | Door Side Airbag Sensor LH |
| *2 | Side Airbag Sensor Assembly LH |
| *3 | Front Door Wire LH |
| *4 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Front Door Wire LH) |
Disconnect the No. 2 floor wire connector from the front door wire LH.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE FRONT DOOR WIRE LH |
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
CHECK NO. 2 FLOOR WIRE (SHORT TO B+)
| *1 | Door Side Airbag Sensor LH |
| *2 | Side Airbag Sensor Assembly LH |
| *3 | Front Door Wire LH |
| *4 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Front Door Wire LH) |
Disconnect the No. 2 floor wire connector from the front door wire LH.
Connect the cable to the negative (-) auxiliary battery terminal.
Turn the power switch on (IG).
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE FRONT DOOR WIRE LH |
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
CHECK NO. 2 FLOOR WIRE (SHORT)
| *1 | Door Side Airbag Sensor LH |
| *2 | Side Airbag Sensor Assembly LH |
| *3 | Front Door Wire LH |
| *4 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Front Door Wire LH) |
Disconnect the No. 2 floor wire connector from the front door wire LH.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE FRONT DOOR WIRE LH |
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
CHECK NO. 2 FLOOR WIRE (OPEN)
| *1 | Door Side Airbag Sensor LH |
| *2 | Side Airbag Sensor Assembly LH |
| *3 | Front Door Wire LH |
| *4 | No. 2 Floor Wire |
| *5 | Service Wire |
| *a | Front view of wire harness connector (to Side Airbag Sensor Assembly LH) |
| *b | Front view of wire harness connector (to Front Door Wire LH) |
Disconnect the No. 2 floor wire connector from the front door wire LH.
Tech Tips
The service wire has already been inserted into connector B.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
Disconnect the service wire from connector B.
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE FRONT DOOR WIRE LH |
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
CHECK HISTORY DTC
Check for history DTCs.
Tech Tips
Codes other than history DTC B1637 may be output at this time, but they are not related to this check.
| Result | ||||||
|---|---|---|---|---|---|---|
|
| B |
|
CHECK REAR AIRBAG SENSOR LH Click here |
| A |
|
CHECK CONNECTORS
Turn the power switch off.
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.
Check that the connectors are properly connected to the airbag ECU assembly and rear airbag sensor LH.
| OK |
|---|
| The connectors are properly connected. |
Tech Tips
If the connectors are not properly connected, reconnect the connectors and proceed to the next inspection.
Disconnect the connectors from the airbag ECU assembly and rear airbag sensor LH.
Check that the terminals of the connectors are not deformed or damaged.
| OK |
|---|
| The terminals are not deformed or damaged. |
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (OPEN)
| *1 | Rear Airbag Sensor LH |
| *2 | Airbag ECU Assembly |
| *3 | No. 2 Floor Wire |
| *4 | Service Wire |
| *a | Front view of wire harness connector (to Airbag ECU Assembly) |
| *b | Front view of wire harness connector (to Rear Airbag Sensor LH) |
Using a service wire, connect terminals 17 (BBL+) and 18 (BBL-) 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.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT)
| *1 | Rear Airbag Sensor LH |
| *2 | Airbag ECU Assembly |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Rear Airbag Sensor LH) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO B+)
| *1 | Rear Airbag Sensor LH |
| *2 | Airbag ECU Assembly |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Rear Airbag Sensor LH) |
Connect the cable to the negative (-) auxiliary battery terminal.
Turn the power switch on (IG).
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Turn the power switch off.
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.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND)
| *1 | Rear Airbag Sensor LH |
| *2 | Airbag ECU Assembly |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Rear Airbag Sensor LH) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK REAR AIRBAG SENSOR LH
| *1 | Rear Airbag Sensor RH |
| *2 | Airbag ECU Assembly |
Connect the connector to the airbag ECU assembly.
Interchange the rear airbag sensor LH with RH and connect the connectors.
Connect the cable to the negative (-) auxiliary battery terminal.
Clear the DTCs stored in memory.
Turn the power switch off.
Turn the power switch on (IG), and wait for at least 60 seconds.
Check for DTCs.
Tech Tips
Codes other than DTCs B1633 and B1638 may be output at this time, but they are not related to this check.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Turn the power switch off.
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.
Return the rear airbag sensor LH and RH to their original positions and connect the connectors.
| A |
|
REPLACE AIRBAG ECU ASSEMBLY Click here |
| B |
|
REPLACE REAR AIRBAG SENSOR LH Click here |
| C |
|
USE SIMULATION METHOD TO CHECK Click here |
CHECK REAR AIRBAG SENSOR LH
| *1 | Rear Airbag Sensor RH |
| *2 | Airbag ECU Assembly |
Turn the power switch off.
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.
Interchange the rear airbag sensor LH with RH and connect the connectors.
Connect the cable to the negative (-) auxiliary battery terminal.
Clear the DTCs stored in memory.
Turn the power switch off.
Turn the power switch on (IG), and wait for at least 60 seconds.
Check for DTCs.
Tech Tips
Codes other than DTCs B1632 and B1637 may be output at this time, but they are not related to this check.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Turn the power switch off.
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.
Return the rear airbag sensor LH and RH to their original positions and connect the connectors.
| A |
|
REPLACE AIRBAG ECU ASSEMBLY Click here |
| B |
|
REPLACE REAR AIRBAG SENSOR LH Click here |
| C |
|
USE SIMULATION METHOD TO CHECK Click here |
CHECK HISTORY DTC
Check for history DTCs.
Tech Tips
Codes other than history DTC B1627 may be output at this time, but they are not related to this check.
| Result | ||||||
|---|---|---|---|---|---|---|
|
| B |
|
CHECK SIDE AIRBAG SENSOR ASSEMBLY LH Click here |
| A |
|
CHECK CONNECTORS
Turn the power switch off.
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.
Check that the connectors are properly connected to the side airbag sensor assembly LH and rear airbag sensor LH.
| OK |
|---|
| The connectors are properly connected. |
Tech Tips
If the connectors are not properly connected, reconnect the connectors and proceed to the next inspection.
Disconnect the connectors from the side airbag sensor assembly LH and rear airbag sensor LH.
Check that the terminals of the connectors are not deformed or damaged.
| OK |
|---|
| The terminals are not deformed or damaged. |
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (OPEN)
| *1 | Side Airbag Sensor Assembly LH |
| *2 | Rear Airbag Sensor LH |
| *3 | No. 2 Floor Wire |
| *4 | Service Wire |
| *a | Front view of wire harness connector (to Rear Airbag Sensor LH) |
| *b | Front view of wire harness connector (to Side Airbag Sensor Assembly LH) |
Using a service wire, connect terminals 4 (BBL+) and 3 (BBL-) 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.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT)
| *1 | Side Airbag Sensor Assembly LH |
| *2 | Rear Airbag Sensor LH |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Rear Airbag Sensor LH) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO B+)
| *1 | Side Airbag Sensor Assembly LH |
| *2 | Rear Airbag Sensor LH |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Rear Airbag Sensor LH) |
Connect the cable to the negative (-) auxiliary battery terminal.
Turn the power switch on (IG).
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Turn the power switch off.
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.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND)
| *1 | Side Airbag Sensor Assembly LH |
| *2 | Rear Airbag Sensor LH |
| *3 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Rear Airbag Sensor LH) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
| OK |
|
CHECK REAR AIRBAG SENSOR LH
| *1 | Rear Airbag Sensor RH |
| *2 | Airbag ECU Assembly |
Connect the connector to the side airbag sensor assembly LH.
Interchange the rear airbag sensor LH with RH and connect the connectors.
Connect the cable to the negative (-) auxiliary battery terminal.
Clear the DTCs stored in memory.
Turn the power switch off.
Turn the power switch on (IG), and wait for at least 60 seconds.
Check for DTCs.
Tech Tips
Codes other than DTCs B1623 and B1628 may be output at this time, but they are not related to this check.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Turn the power switch off.
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.
Return the rear airbag sensor LH and RH to their original positions and connect the connectors.
| B |
|
REPLACE REAR AIRBAG SENSOR LH Click here |
| C |
|
USE SIMULATION METHOD TO CHECK Click here |
| A |
|
CHECK SIDE AIRBAG SENSOR ASSEMBLY LH
| *1 | Side Airbag Sensor Assembly RH |
| *2 | Rear Airbag Sensor LH |
Interchange the side airbag sensor assembly LH with RH and connect the connectors.
Connect the cable to the negative (-) auxiliary battery terminal.
Clear the DTCs stored in memory.
Turn the power switch off.
Turn the power switch on (IG), and wait for at least 60 seconds.
Check for DTCs.
Tech Tips
Codes other than DTCs B1623 and B1628 may be output at this time, but they are not related to this check.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Turn the power switch off.
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.
Return the side airbag sensor assembly LH and RH to their original positions and connect the connectors.
| A |
|
REPLACE AIRBAG ECU ASSEMBLY Click here |
| B |
|
REPLACE SIDE AIRBAG SENSOR ASSEMBLY LH Click here |
| C |
|
USE SIMULATION METHOD TO CHECK Click here |
CHECK SIDE AIRBAG SENSOR ASSEMBLY LH
| *1 | Side Airbag Sensor Assembly RH |
| *2 | Rear Airbag Sensor LH |
Turn the power switch off.
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.
Interchange the side airbag sensor assembly LH with RH and connect the connectors.
Connect the cable to the negative (-) auxiliary battery terminal.
Clear the DTCs stored in memory.
Turn the power switch off.
Turn the power switch on (IG), and wait for at least 60 seconds.
Check for DTCs.
Tech Tips
Codes other than DTCs B1622 and B1627 may be output at this time, but they are not related to this check.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Turn the power switch off.
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.
Return the side airbag sensor assembly LH and RH to their original positions and connect the connectors.
| A |
|
REPLACE AIRBAG ECU ASSEMBLY Click here |
| B |
|
REPLACE SIDE AIRBAG SENSOR ASSEMBLY LH Click here |
| C |
|
USE SIMULATION METHOD TO CHECK Click here |
CHECK CONNECTORS
Turn the power switch off.
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.
Check that the connectors are properly connected to the side airbag sensor assembly LH and door side airbag sensor LH. Also check that the connectors that link the No. 2 floor wire and front door wire LH are properly connected.
| OK |
|---|
| The connectors are properly connected. |
Tech Tips
If the connectors are not properly connected, reconnect the connectors and proceed to the next inspection.
Disconnect the connectors from the side airbag sensor assembly LH and door side airbag sensor LH. Also disconnect the connectors that link the No. 2 floor wire and front door wire LH.
Check that the terminals of the connectors are not deformed or damaged.
| OK |
|---|
| The terminals are not deformed or damaged. |
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE WIRE HARNESS |
| OK |
|
CHECK WIRE HARNESS (OPEN)
| *1 | Door Side Airbag Sensor LH |
| *2 | Side Airbag Sensor Assembly LH |
| *3 | Service Wire |
| *a | Front view of wire harness connector (to Side Airbag Sensor Assembly LH) |
| *b | Front view of wire harness connector (to Door Side Airbag Sensor LH) |
Connect the connectors that link the No. 2 floor wire and front door wire LH.
Using a service wire, connect terminals 1 (BDL+) and 2 (BDL-) 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 | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
CHECK NO. 2 FLOOR WIRE (OPEN) Click here |
| OK |
|
CHECK WIRE HARNESS (SHORT)
| *1 | Door Side Airbag Sensor LH |
| *2 | Side Airbag Sensor Assembly LH |
| *a | Front view of wire harness connector (to Door Side Airbag Sensor LH) |
Disconnect the service wire from connector B.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
CHECK NO. 2 FLOOR WIRE (SHORT) Click here |
| OK |
|
CHECK WIRE HARNESS (SHORT TO B+)
| *1 | Door Side Airbag Sensor LH |
| *2 | Side Airbag Sensor Assembly LH |
| *a | Front view of wire harness connector (to Door Side Airbag Sensor LH) |
Connect the cable to the negative (-) auxiliary battery terminal.
Turn the power switch on (IG).
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Turn the power switch off.
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.
| Result | |||
|---|---|---|---|
|
| NG |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO B+) Click here |
| OK |
|
CHECK WIRE HARNESS (SHORT TO GROUND)
| *1 | Door Side Airbag Sensor LH |
| *2 | Side Airbag Sensor Assembly LH |
| *a | Front view of wire harness connector (to Door Side Airbag Sensor LH) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND) Click here |
| OK |
|
CHECK SIDE AIRBAG SENSOR ASSEMBLY LH
| *1 | Side Airbag Sensor Assembly RH |
| *2 | Rear Airbag Sensor LH |
Connect the connector to the door side airbag sensor LH.
Interchange the side airbag sensor assembly LH with RH and connect the connectors.
Connect the cable to the negative (-) auxiliary battery terminal.
Clear the DTCs stored in memory.
Turn the power switch off.
Turn the power switch on (IG), and wait for at least 60 seconds.
Check for DTCs.
Tech Tips
Codes other than DTCs B1692, B1693, B1697 and B1698 may be output at this time, but they are not related to this check.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Turn the power switch off.
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.
Return the side airbag sensor assembly LH and RH to their original positions and connect the connectors.
| B |
|
REPLACE SIDE AIRBAG SENSOR ASSEMBLY LH Click here |
| C |
|
USE SIMULATION METHOD TO CHECK Click here |
| A |
|
CHECK DOOR SIDE AIRBAG SENSOR LH
| *1 | Door Side Airbag Sensor RH |
| *2 | Side Airbag Sensor Assembly LH |
Interchange the door side airbag sensor LH with RH and connect the connectors.
Connect the cable to the negative (-) auxiliary battery terminal.
Clear the DTCs stored in memory.
Turn the power switch off.
Turn the power switch on (IG), and wait for at least 60 seconds.
Check for DTCs.
Tech Tips
Codes other than DTCs B1692, B1693, B1697 and B1698 may be output at this time, but they are not related to this check.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Turn the power switch off.
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.
Return the door side airbag sensor LH and RH to their original positions and connect the connectors.
| A |
|
REPLACE AIRBAG ECU ASSEMBLY Click here |
| B |
|
REPLACE DOOR SIDE AIRBAG SENSOR LH Click here |
| C |
|
USE SIMULATION METHOD TO CHECK Click here |
CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND)
| *1 | Door Side Airbag Sensor LH |
| *2 | Side Airbag Sensor Assembly LH |
| *3 | Front Door Wire LH |
| *4 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Front Door Wire LH) |
Disconnect the No. 2 floor wire connector from the front door wire LH.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE FRONT DOOR WIRE LH |
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
CHECK NO. 2 FLOOR WIRE (SHORT TO B+)
| *1 | Door Side Airbag Sensor LH |
| *2 | Side Airbag Sensor Assembly LH |
| *3 | Front Door Wire LH |
| *4 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Front Door Wire LH) |
Disconnect the No. 2 floor wire connector from the front door wire LH.
Connect the cable to the negative (-) auxiliary battery terminal.
Turn the power switch on (IG).
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE FRONT DOOR WIRE LH |
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
CHECK NO. 2 FLOOR WIRE (SHORT)
| *1 | Door Side Airbag Sensor LH |
| *2 | Side Airbag Sensor Assembly LH |
| *3 | Front Door Wire LH |
| *4 | No. 2 Floor Wire |
| *a | Front view of wire harness connector (to Front Door Wire LH) |
Disconnect the No. 2 floor wire connector from the front door wire LH.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE FRONT DOOR WIRE LH |
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
CHECK NO. 2 FLOOR WIRE (OPEN)
| *1 | Door Side Airbag Sensor LH |
| *2 | Side Airbag Sensor Assembly LH |
| *3 | Front Door Wire LH |
| *4 | No. 2 Floor Wire |
| *5 | Service Wire |
| *a | Front view of wire harness connector (to Side Airbag Sensor Assembly LH) |
| *b | Front view of wire harness connector (to Front Door Wire LH) |
Disconnect the No. 2 floor wire connector from the front door wire LH.
Tech Tips
The service wire has already been inserted into connector B.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
Disconnect the service wire from connector B.
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE FRONT DOOR WIRE LH |
| NG |
|
REPLACE NO. 2 FLOOR WIRE |
CHECK REAR AIRBAG SENSOR LH
| *1 | Rear Airbag Sensor RH |
| *2 | Airbag ECU Assembly |
Turn the power switch off.
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.
Interchange the rear airbag sensor LH with RH and connect the connectors.
Connect the cable to the negative (-) auxiliary battery terminal.
Clear the DTCs stored in memory.
Turn the power switch off.
Turn the power switch on (IG), and wait for at least 60 seconds.
Check for DTCs.
Tech Tips
Codes other than DTCs B1632 and B1637 may be output at this time, but they are not related to this check.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Turn the power switch off.
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.
Return the rear airbag sensor LH and RH to their original positions and connect the connectors.
| A |
|
REPLACE AIRBAG ECU ASSEMBLY Click here |
| B |
|
REPLACE REAR AIRBAG SENSOR LH Click here |
| C |
|
USE SIMULATION METHOD TO CHECK Click here |
CHECK SIDE AIRBAG SENSOR ASSEMBLY LH
| *1 | Side Airbag Sensor Assembly RH |
| *2 | Rear Airbag Sensor LH |
Turn the power switch off.
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.
Interchange the side airbag sensor assembly LH with RH and connect the connectors.
Connect the cable to the negative (-) auxiliary battery terminal.
Clear the DTCs stored in memory.
Turn the power switch off.
Turn the power switch on (IG), and wait for at least 60 seconds.
Check for DTCs.
Tech Tips
Codes other than DTCs B1622 and B1627 may be output at this time, but they are not related to this check.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Turn the power switch off.
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.
Return the side airbag sensor assembly LH and RH to their original positions and connect the connectors.
| A |
|
REPLACE AIRBAG ECU ASSEMBLY Click here |
| B |
|
REPLACE SIDE AIRBAG SENSOR ASSEMBLY LH Click here |
| C |
|
USE SIMULATION METHOD TO CHECK Click here |