B1630

SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1630/23, B1635/24: Driver Side Rear Airbag Sensor Circuit Malfunction
B1635/24 - Front Passenger Side Rear Airbag Sensor Circuit Malfunction

DESCRIPTION

The side airbag sensor LH and RH consists of the safing sensor, the diagnostic circuit, the lateral deceleration sensor, etc.

If the center airbag sensor receives signals from the lateral deceleration sensor, it determines whether the SRS should be activated.

DTC B1630/23 or B1635/24 is recorded when a malfunction is detected in the side airbag sensor LH or RH circuit.

HINT
"Rear Airbag Sensor" refers to the side airbag sensor.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC

(a) Turn the ignition switch OFF.

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

(c) Clear the DTCs stored in the memory Reading and Clearing Diagnostic Trouble Codes.

(d) Turn the ignition switch OFF.

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

(f) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result

B -- CHECK CONNECTION OF CONNECTORS

A -- USE SIMULATION METHOD TO CHECK Diagnosis System
C -- Continue to next step.

2. CHECK CONNECTION OF CONNECTORS

(a) Turn the ignition 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 and side airbag sensor RH.

OK:

The connectors are properly connected.

NG -- CONNECT CONNECTORS PROPERLY
OK -- Continue to next step.

3. CHECK CONNECTORS

(a) Disconnect the connectors from the center airbag sensor and side airbag sensor RH.

(b) Check that the connectors (on the center airbag sensor side and side airbag sensor RH side) are not damaged.

OK:

The connectors are not deformed or damaged.

NG -- REPLACE NO. 2 FLOOR WIRE
OK -- Continue to next step.

4. CHECK NO. 2 FLOOR WIRE (CENTER AIRBAG SENSOR - SIDE AIRBAG SENSOR RH)

(a) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.

(b) Turn the ignition switch ON.

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

Standard voltage:

(d) Turn the ignition switch OFF.

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

(f) 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 the wire.

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

Standard resistance:

(h) Disconnect the service wire from connector B.

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

Standard resistance:

NG -- REPLACE NO. 2 FLOOR WIRE
OK -- Continue to next step.

5. 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 ignition switch ON, and wait for at least 60 seconds.

(d) Clear the DTCs stored in the memory Reading and Clearing Diagnostic Trouble Codes.

(e) Turn the ignition switch OFF.

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

(g) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result

HINT
Codes other than DTC B1630 and B1635 maybe output at this time, but they are not related to this check.

(h) Turn the ignition 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 Removal

B -- REPLACE SIDE AIRBAG SENSOR RH Removal

A -- USE SIMULATION METHOD TO CHECK Diagnosis System
D -- Continue to next step.

6. CHECK CONNECTION OF CONNECTORS

(a) Check that the connector is properly connected to the door side airbag sensor RH.

OK:

The connector is properly connected.

NG -- CONNECT CONNECTORS PROPERLY
OK -- Continue to next step.

7. CHECK CONNECTORS

(a) Disconnect the connectors from the side airbag sensor RH and door side airbag sensor RH.

(b) Check that the connector (on the door side airbag sensor RH side) is not damaged.

OK:

The connector is not deformed or damaged.

NG -- REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.

8. CHECK DOOR SIDE AIRBAG SENSOR RH CIRCUIT

(d) Turn the ignition switch OFF.

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

(f) Using a service wire, connect terminals 1 (BCR+) and 2 (BCR-) of connector B.

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

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

Standard resistance:

(h) Disconnect the service wire from connector B.

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

Standard resistance:

NG -- CHECK NO. 2 FLOOR WIRE
OK -- Continue to next step.

9. CHECK FOR DTC

(a) Connect the connectors to the side airbag sensor RH.

(b) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.

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

(d) Clear any DTCs stored in the memory Reading and Clearing Diagnostic Trouble Codes.

(e) Turn the ignition switch OFF.

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

(g) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

OK:

DTC B1635 is output.

HINT
Codes other than B1635 maybe output at this time, but they are not related to this check.

Result

B -- REPLACE DOOR SIDE AIRBAG SENSOR RH Removal

A -- REPLACE DOOR SIDE AIRBAG SENSOR RH Removal
C -- Continue to next step.

10. CHECK SIDE AIRBAG SENSOR RH

(a) Disconnect the No. 2 floor wire connector from the door wire RH.

(b) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.

(c) Turn the ignition switch ON.

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

Standard voltage:

(e) Turn the ignition switch OFF.

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

(g) Using a service wire, connect terminals 1 (BCR+) and 2 (BCR-) of connector B.

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

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

Standard resistance:

(i) Disconnect the service wire from connector B.

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

Standard resistance:

NG -- REPLACE NO. 2 FLOOR WIRE

OK -- REPLACE DOOR WIRE RH

12. CHECK CONNECTION OF CONNECTORS

(a) Turn the ignition 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 and side airbag sensor LH.

OK:

The connectors are properly connected.

NG -- CONNECT CONNECTORS PROPERLY
OK -- Continue to next step.

13. CHECK CONNECTORS

(a) Disconnect the connectors from the center airbag sensor and side airbag sensor LH.

(b) Check that the connectors (on the center airbag sensor side and side airbag sensor LH side) are not damaged.

OK:

The connectors are not deformed or damaged.

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

14. CHECK FLOOR WIRE (CENTER AIRBAG SENSOR - SIDE AIRBAG SENSOR LH)

(d) Turn the ignition switch OFF.

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

(f) Using a service wire, connect terminals 8 (BBD+) and 15 (BBD-) of connector B.

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

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

Standard resistance:

(h) Disconnect the service wire from connector B.

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

Standard resistance:

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

15. CHECK SIDE AIRBAG SENSOR LH

(a) Interchange the side airbag sensor RH with LH 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 ignition switch ON, and wait for at least 60 seconds.

(d) Clear the DTCs stored in the memory Reading and Clearing Diagnostic Trouble Codes.

(e) Turn the ignition switch OFF.

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

(g) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result

(d) Turn the ignition switch OFF.

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

(f) Using a service wire, connect terminals 2 (BCL-) and 1 (BCL+) of connector B.

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

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

Standard resistance:

(h) Disconnect the service wire from connector B.

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

Standard resistance:

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

17. CHECK FOR DTC

(a) Connect the connectors to the side airbag sensor LH.

(b) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.

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

(d) Clear the DTCs stored in the memory Reading and Clearing Diagnostic Trouble Codes.

(e) Turn the ignition switch OFF.

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

(g) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

OK:

DTC B1630 is output.

HINT
Codes other than B1630 maybe output at this time, but they are not related to this check.

Result

B -- REPLACE DOOR SIDE AIRBAG SENSOR LH Removal

A -- REPLACE DOOR SIDE AIRBAG SENSOR LH Removal
C -- Continue to next step.

18. CHECK SIDE AIRBAG SENSOR LH

(a) Disconnect the floor wire connector from the door wire LH.

(b) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.

(c) Turn the ignition switch ON.

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

Standard voltage:

(e) Turn the ignition switch OFF.

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

(g) Using a service wire, connect terminals 1 (BCL+) and 2 (BCL-) of connector B.

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

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

Standard resistance:

(i) Disconnect the service wire from connector B.

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

Standard resistance:

NG -- REPLACE FLOOR WIRE

OK -- REPLACE DOOR WIRE LH