B1610

SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1610/13, B1615/14: Front Airbag Sensor RH Malfunction
B1615/14 - Front Airbag Sensor LH Malfunction

DESCRIPTION

The front airbag sensor LH and RH consists of the diagnostic circuit and the frontal deceleration sensor, etc.

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

DTC B1610/13 or B1615/14 is recorded when a malfunction is detected in the front airbag sensor LH and RH circuit.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC

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

Result

D -- CHECK CONNECTION OF CONNECTORS

C -- USE SIMULATION METHOD TO CHECK Diagnosis System

B -- CHECK CONNECTION OF CONNECTORS
A -- 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 the front 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 front airbag sensor RH.

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

OK:

The connectors are not deformed or damaged.

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

4. CHECK FRONT AIRBAG SENSOR RH CIRCUIT

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

(b) Tun 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 29 (+SR) and 27 (-SR) 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 INSTRUMENT PANEL WIRE
OK -- Continue to next step.

5. CHECK FRONT AIRBAG SENSOR RH

(a) Connect the connectors to the center airbag sensor.

(b) Interchange the front airbag sensor LH with RH and connect the connectors to them.

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

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

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

(f) Turn the ignition switch OFF.

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

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

Result

HINT
Codes other than DTC B1610 and B1615 maybe output at this time, but they are not related to this check.

B -- REPLACE FRONT AIRBAG SENSOR RH Removal

A -- REPLACE CENTER AIRBAG SENSOR

C -- USE SIMULATION METHOD TO CHECK Diagnosis System

6. CHECK INSTRUMENT PANEL WIRE

(a) Disconnect the instrument panel wire connector from the engine room main wire.

(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 terminal 27 (-SR) and 29 (+SR) 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 INSTRUMENT PANEL WIRE

OK -- REPLACE ENGINE ROOM MAIN WIRE

7. 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 the front airbag sensor LH.

OK:

The connectors are properly connected.

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

8. CHECK CONNECTORS

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

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

OK:

The connectors are not deformed or damaged.

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

9. CHECK FRONT AIRBAG SENSOR LH CIRCUIT

(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 30 (+SL) and 28 (-SL) 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 INSTRUMENT PANEL WIRE
OK -- Continue to next step.

10. CHECK FRONT AIRBAG SENSOR LH

(a) Connect the connectors to the center airbag sensor.

(b) Interchange the front airbag sensor LH with RH and connect the connectors to them.

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

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

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

(f) Turn the ignition switch OFF.

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

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

Result

HINT
Codes other than DTC B1610 and B1615 maybe output at this time, but they are not related to this check.

B -- REPLACE CENTER AIRBAG SENSOR

A -- REPLACE FRONT AIRBAG SENSOR LH Removal

C -- USE SIMULATION METHOD TO CHECK Diagnosis System

11. CHECK INSTRUMENT PANEL WIRE

(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 terminal 30 (+SL) and 28 (-SL) 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 INSTRUMENT PANEL WIRE

OK -- REPLACE ENGINE ROOM MAIN WIRE

12. REPLACE CENTER AIRBAG SENSOR

(a) Turn the ignition switch OFF.

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

(c) Replace the center airbag sensor.

(1) for Column Shift Type Removal.

(2) for Floor Shift Type Removal.

HINT
Perform the inspection using parts from a normal vehicle when possible.

(d) Connect the connectors to the center airbag sensor.

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

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

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

(h) Turn the ignition switch OFF.

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

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

OK:

DTC B1610 and B1615 are not output.

HINT
Codes other than B1610 maybe output at this time, but they are not related to this check.

NG -- REPLACE FRONT AIRBAG SENSOR RH AND LH Removal

OK -- END

13. 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 the front airbag sensor RH and LH.

OK:

The connectors are properly connected.

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

14. CHECK CONNECTORS

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

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

OK:

The connectors are not deformed or damaged.

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

15. CHECK FRONT AIRBAG SENSOR RH CIRCUIT

(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 INSTRUMENT PANEL WIRE
OK -- Continue to next step.

16. CHECK FRONT AIRBAG SENSOR LH CIRCUIT

(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 INSTRUMENT PANEL WIRE
OK -- Continue to next step.

17. REPLACE FRONT AIRBAG SENSOR RH AND LH

(a) Turn the ignition switch OFF.

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

(c) Replace the front airbag sensor RH and LH Removal.

HINT
Perform the inspection using parts from a normal vehicle when possible.

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

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

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

(g) Turn the ignition switch OFF.

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

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

OK:

DTC B1610 and B1615 are not output.

HINT
Codes other than B1610 and B1615 maybe output at this time, but they are not related to this check.

Result

B -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY Removal

A -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY Removal

C -- END

18. CHECK INSTRUMENT PANEL WIRE

(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 INSTRUMENT PANEL WIRE

OK -- REPLACE ENGINE ROOM MAIN WIRE

19. CHECK INSTRUMENT PANEL WIRE

(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 INSTRUMENT PANEL WIRE

OK -- REPLACE ENGINE ROOM MAIN WIRE