- Rear airbag sensor LH malfunction
- Side airbag sensor LH malfunction
- Center airbag sensor malfunction
| Last Modified: 11-29-2007 | 1.6 C | |
| Service Category: Vehicle Interior | Section: Supplemental Restraint Systems | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000002NNB00OX |
| Title: SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: DESCRIPTION (2008 Sequoia) | ||
|
DTC |
B1630/23 |
Driver Side Rear Airbag Sensor Circuit Malfunction |
|
DTC |
B1635/24 |
Front Passenger Side Rear Airbag Sensor Circuit Malfunction |
DESCRIPTION
The rear airbag sensor LH or 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 stored when a malfunction is detected in the rear airbag sensor LH or RH circuit.
|
DTC Code |
Detection Condition |
Trouble Area |
|---|---|---|
|
B1630/23 |
When one of following conditions is met: |
|
|
B1635/24 |
When one of following conditions is met:
|
|
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
CHECK FOR DTC |
(a) Turn the ignition switch off.
(b) Clear the DTCs stored in the memory
.
(c) Turn the ignition switch off.
(d) Turn the ignition switch to ON, and wait for at least 60 seconds.
(e) Check for DTCs
.
Result
|
Result |
Proceed to |
|---|---|
|
DTC B1635/24 is output |
A |
|
DTC B1630/23 is output |
B |
|
DTC B1630/23 and B1635/24 are not output |
C |
|
|
2. |
CHECK CONNECTION OF CONNECTORS |
(a) Turn the ignition switch off.
(b) Disconnect the cable from the negative (-) battery terminal, 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.
|
|
3. |
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 the rear airbag sensor RH side) are not damaged
.
OK:
The connectors are not deformed or damaged.
|
|
4. |
CHECK REAR AIRBAG SENSOR RH CIRCUIT |
(a) Connect the negative (-) terminal to the battery, and wait for at least 2 seconds.
(b) Turn the ignition switch to ON, and wait for at least 60 seconds.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
L9-1 (BCR+) - Body ground |
Ignition switch ON |
Below 1 V |
|
L9-2 (BCR-) - Body ground |
Ignition switch ON |
Below 1 V |
(d) Turn the ignition switch off.
(e) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
(f) Disconnect the connectors from the side airbag sensor RH and rear airbag sensor RH.
(g) Using a service wire, connect terminals 2 (BCR+) and 1 (BCR-) of connector E.
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:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
L9-1 (BCR+) - L9-2 (BCR-) |
Always |
Below 1 Ω |
(i) Disconnect the service wire from the connector E.
(j) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
L9-1 (BCR+) - L9-2 (BCR-) |
Always |
1 MΩ or higher |
|
L9-1 (BCR+) - Body ground |
Always |
1 MΩ or higher |
|
L9-2 (BCR-) - Body ground |
Always |
1 MΩ or higher |
|
|
5. |
CHECK REAR AIRBAG SENSOR RH |
|
(a) Turn the ignition switch off. |
(b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
(c) Interchange the rear airbag sensor RH with LH and connect the connectors to them.
(d) Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
(e) Turn the ignition switch to ON, and wait for at least 60 seconds.
(f) Clear the DTCs stored in the memory
.
(g) Turn the ignition switch off.
(h) Turn the ignition switch to ON, and wait for at least 60 seconds.
(i) Check for DTCs
.
Result:
|
Result |
Proceed to |
|---|---|
|
DTC B1635/24 is output |
A |
|
DTC B1630/23 is output |
B |
|
DTC B1630/23 and B1635/24 are not output |
C |
HINT:
Codes other than DTC B1630/23 and B1635/24 may be output at this time, but they are not released to this check.
(j) Turn the ignition switch off.
(k) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
(l) Return the rear airbag sensor RH and LH to their original positions and connect the connectors to them.
|
|
6. |
CHECK SIDE AIRBAG SENSOR RH |
|
(a) Interchange the side airbag sensor RH with LH and connect the connectors to them. |
(b) Connect the negative (-) terminal to the battery, and wait for at least 2 seconds.
(c) Turn the ignition switch to ON, and wait for at least 60 seconds.
(d) Clear the DTCs stored in the memory
.
(e) Turn the ignition switch off.
(f) Turn the ignition switch to ON, and wait for at least 60 seconds.
(g) Check for DTCs
.
|
Result |
Proceed to |
|---|---|
|
DTC B1635/24 is output |
A |
|
DTC B1630/23 is output |
B |
|
DTC B1630/23 and B1635/24 are not output |
C |
(h) Turn the ignition switch off.
(i) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
(j) Return the side airbag sensor RH and LH to their original positions and connect the connectors to them.
|
|
13. |
CHECK FRONT DOOR WIRE RH (SIDE AIRBAG SENSOR RH - NO. 2 FLOOR WIRE) |
(a) Disconnect the No. 2 floor wire connector from the door wire RH.
(b) Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
(c) Turn the ignition switch to ON.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
L9-1 (BCR+) - Body ground |
Ignition switch ON |
Below 1 V |
|
L9-2 (BCR-) - Body ground |
Ignition switch ON |
Below 1 V |
(e) Turn the ignition switch off.
(f) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
(g) 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 the wire.
(h) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
L9-1 (BCR+) - L9-2 (BCR-) |
Always |
Below 1 Ω |
(i) Disconnect the service wire from connector C.
(j) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
L9-1 (BCR+) - L9-2 (BCR-) |
Always |
1 MΩ or higher |
|
L9-1 (BCR+) - Body ground |
Always |
1 MΩ or higher |
|
L9-2 (BCR-) - Body ground |
Always |
1 MΩ or higher |
|
|
16. |
CHECK CONNECTION OF CONNECTORS |
(a) Turn the ignition switch off.
(b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
(c) Check that the connectors are properly connected to the side airbag sensor LH and the rear airbag sensor LH.
OK:
The connectors are properly connected.
|
|
17. |
CHECK CONNECTORS |
(a) Disconnect the connectors from the side airbag sensor LH and rear airbag sensor LH.
(b) Check that the connectors (on the side airbag sensor LH side and the rear airbag sensor LH side) are not damaged
.
OK:
The connectors are not deformed or damaged.
|
|
18. |
CHECK REAR AIRBAG SENSOR LH CIRCUIT |
(a) Connect the negative (-) terminal to the battery, and wait for at least 2 seconds.
(b) Turn the ignition switch to ON, and wait for at least 60 seconds.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
M11-1 (BCL+) - Body ground |
Ignition switch ON |
Below 1 V |
|
M11-2 (BCL-) - Body ground |
Ignition switch ON |
Below 1 V |
(d) Turn the ignition switch off.
(e) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
(f) Disconnect the connectors from the side airbag sensor LH and rear airbag sensor LH.
(g) Using a service wire, connect terminals 2 (BCL+) and 1 (BCL-) of connector E.
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:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
M11-1 (BCL+) - M11-2 (BCL-) |
Always |
Below 1 Ω |
(i) Disconnect the service wire from the connector E.
(j) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
M11-1 (BCL+) - M11-2 (BCL-) |
Always |
1 MΩ or higher |
|
M11-1 (BCL+) - Body ground |
Always |
1 MΩ or higher |
|
M11-2 (BCL-) - Body ground |
Always |
1 MΩ or higher |
|
|
19. |
CHECK REAR AIRBAG SENSOR LH |
(a) Turn the ignition switch off.
(b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
(c) Interchange the rear airbag sensor LH with RH and connect the connectors to them.
(d) Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
(e) Turn the ignition switch to ON, and wait for at least 60 seconds.
(f) Clear the DTCs stored in the memory
.
(g) Turn the ignition switch off.
(h) Turn the ignition switch to ON, and wait for at least 60 seconds.
(i) Check for DTCs
.
Result:
|
Result |
Proceed to |
|---|---|
|
DTC B1630/23 is output |
A |
|
DTC B1635/24 is output |
B |
|
DTC B1630/23 and B1635/24 are not output |
C |
HINT:
Codes other than DTC B1630/23 and B1635/24 may be output at this time, but they are not released to this check.
(j) Turn the ignition switch off.
(k) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
(l) Return the rear airbag sensor LH and RH to their original positions and connect the connectors to them.
|
|
20. |
CHECK SIDE AIRBAG SENSOR LH |
|
(a) Interchange the side airbag sensor LH with RH and connect the connectors to them. |
(b) Connect the negative (-) terminal to the battery, and wait for at least 2 seconds.
(c) Turn the ignition switch to ON, and wait for at least 60 seconds.
(d) Clear the DTCs stored in the memory
.
(e) Turn the ignition switch off.
(f) Turn the ignition switch to ON, and wait for at least 60 seconds.
(g) Check for DTCs
.
|
Result |
Proceed to |
|---|---|
|
DTC B1630/23 is output |
A |
|
DTC B1635/24 is output |
B |
|
DTC B1630/23 and B1635/24 are not output |
C |
(h) Turn the ignition switch off.
(i) Disconnect the cable from the negative (-) battery terminal, 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.
|
|
26. |
CHECK FRONT DOOR WIRE LH (SIDE AIRBAG SENSOR LH - FLOOR WIRE) |
(a) Disconnect the floor wire connector from the door wire LH.
(b) Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
(c) Turn the ignition switch to ON.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
M11-1 (BCL+) - Body ground |
Ignition switch ON |
Below 1 V |
|
M11-2 (BCL-) - Body ground |
Ignition switch ON |
Below 1 V |
(e) Turn the ignition switch off.
(f) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
(g) Using a service wire, connect terminals 2 (BCL+) and 1 (BCL-) of connector C.
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:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
M11-1 (BCL+) - M11-2 (BCL-) |
Always |
Below 1 Ω |
(i) Disconnect the service wire from connector C.
(j) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
M11-1 (BCL+) - M11-2 (BCL-) |
Always |
1 MΩ or higher |
|
M11-1 (BCL+) - Body ground |
Always |
1 MΩ or higher |
|
M11-2 (BCL-) - Body ground |
Always |
1 MΩ or higher |
|
|
|