DESCRIPTION
The seat belt buckle switch RH circuit consists of the airbag sensor assembly and front seat inner belt assembly RH.
DTC B1655/37 is stored when a malfunction is detected in the seat belt buckle switch RH circuit.
DTC No. | DTC Detection Condition | Trouble Area |
---|---|---|
B1655/37 |
|
|
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 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 front seat inner belt assembly RH.
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 sensor assembly and front seat inner belt 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 | Front Seat Inner Belt 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 Front Seat Inner Belt Assembly RH) |
Using a service wire, connect terminals 15 (RBE+) and 23 (RBE-) 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 | Front Seat Inner Belt Assembly RH |
*2 | Airbag Sensor Assembly |
*3 | No. 2 Floor Wire |
*a | Front view of wire harness connector (to Front Seat Inner Belt 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 | Front Seat Inner Belt Assembly RH |
*2 | Airbag Sensor Assembly |
*3 | No. 2 Floor Wire |
*a | Front view of wire harness connector (to Front Seat Inner Belt 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 | Front Seat Inner Belt Assembly RH |
*2 | Airbag Sensor Assembly |
*3 | No. 2 Floor Wire |
*a | Front view of wire harness connector (to Front Seat Inner Belt Assembly RH) |
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
NG |
REPLACE NO. 2 FLOOR WIRE |
OK |
CHECK DTC
*1 | Front Seat Inner Belt Assembly RH |
*2 | Airbag Sensor Assembly |
Connect the connectors to the airbag sensor assembly and front seat inner belt assembly RH.
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.
OK |
---|
DTC B1655/37 is not output. |
Tech Tips
Codes other than DTC B1655/37 may be output at this time, but they are not related to this check.
NG |
CHECK FRONT SEAT INNER BELT ASSEMBLY RH Click here |
OK |
USE SIMULATION METHOD TO CHECK Click here
CHECK FRONT SEAT INNER BELT ASSEMBLY RH
*1 | Front Seat Inner Belt Assembly RH |
*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.
Replace the front seat inner belt assembly RH with a known good one Click here.
Tech Tips
Perform the following inspection using known good parts from another vehicle if possible.
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.
OK |
---|
DTC B1655/37 is not output. |
Tech Tips
Codes other than DTC B1655/37 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.
Restore the front seat inner belt assembly RH that was installed for testing to its original location Click here.
NG |
REPLACE AIRBAG SENSOR ASSEMBLY Click here |
OK |
REPLACE FRONT SEAT INNER BELT ASSEMBLY RH Click here