B1625
SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1625/22: Front Passenger Side - Side Airbag Sensor Circuit Malfunction
DTC B1625/22 - Front Passenger Side - Side Airbag Sensor Circuit Malfunction
DESCRIPTION
The front passenger side - side airbag sensor circuit consists of the safing sensor, the diagnostic circuit, the lateral deceleration sensor, etc.
If the center airbag sensor assembly receives signals from the lateral deceleration sensor, it determines whether or not the SRS should be activated.
DTC B1625/22 is recorded when a malfunction is detected in the front passenger side - side airbag sensor circuit.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK DTC
(a) Turn the ignition switch to the ON position, and wait for at least 60 seconds.
(b) Clear the DTCs stored in the memory (DTC Check / Clear).
(c) Turn the ignition switch to the LOCK position.
(d) Turn the ignition switch to the ON position, and wait for at least 60 seconds.
(e) Check the DTCs (DTC Check / Clear).
OK:
DTC B1625/22 is not output.
HINT: Codes other than DTC B1625/22 may be output at this time, but they are not related to this check.
NG -- CHECK CONNECTION OF CONNECTORS
OK -- USE SIMULATION METHOD TO CHECK
2. CHECK CONNECTION OF CONNECTORS
(a) Turn the ignition switch to the LOCK position.
(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 front passenger side - side airbag sensor and the center airbag sensor assembly.
OK:
The connectors are properly connected.
NG -- CONNECT CONNECTORS, THEN GO TO STEP 1
OK -- Continue to next step.
3. CHECK FLOOR WIRE (OPEN)
(a) Disconnect the connectors from the center airbag sensor assembly and the front passenger side - side airbag sensor.
(b) Using a service wire, connect A14-8 (BBP+) and A14-11 (BBP-) of connector "B".
NOTE: Do not forcibly insert a service wire into the terminals of the connector when connecting.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE FLOOR WIRE
OK -- Continue to next step.
4. CHECK FLOOR WIRE (SHORT)
(a) Disconnect the service wire from connector "B".
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE FLOOR WIRE
OK -- Continue to next step.
5. CHECK FLOOR WIRE (SHORT TO B+)
(a) Disconnect the negative (-) terminal cable from the battery, and wait for at least 2 seconds.
(b) Turn the ignition switch to the ON position.
(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- REPAIR OR REPLACE FLOOR WIRE
OK -- Continue to next step.
6. CHECK FLOOR WIRE (SHORT TO GROUND)
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE FLOOR WIRE
OK -- Continue to next step.
7. CHECK FRONT PASSENGER SIDE - SIDE AIRBAG SENSOR
(a) Connect the connector to the center airbag sensor assembly.
(b) Interchange the front passenger side - side airbag sensor with the driver side - side airbag sensor 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 to the ON position, and wait for at least 60 seconds.
(e) Clear the DTCs stored in the memory (DTC Check / Clear).
(f) Turn the ignition switch to the LOCK position.
(g) Turn the ignition switch to the ON position, and wait for at least 60 seconds.
(h) Check the DTCs (DTC Check / Clear).
Result:
HINT: Codes other than DTC B1620/21 and B1625/22 may be output at this time, but they are not related to this check.
B -- REPLACE FRONT PASSENGER SIDE - SIDE AIRBAG SENSOR
A -- CHECK FLOOR WIRE (SHORT)
C -- USE SIMULATION METHOD TO CHECK
8. CHECK FLOOR WIRE (SHORT)
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) Return the driver side - side airbag sensor and front passenger side - side airbag sensor to their original positions and connect the connectors to them.
(d) Disconnect the connectors from the front passenger side - side airbag sensor and front passenger side rear airbag sensor.
(e) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE FLOOR WIRE
OK -- Continue to next step.
9. CHECK FLOOR WIRE (SHORT TO GROUND)
(a) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE FLOOR WIRE
OK -- Continue to next step.
10. CHECK FLOOR WIRE (SHORT TO B+)
(a) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
(b) Turn the ignition switch to the ON position.
(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- REPAIR OR REPLACE FLOOR WIRE
OK -- Continue to next step.
11. CHECK FRONT PASSENGER SIDE REAR AIRBAG SENSOR
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) Connect the connector to the front passenger side - side airbag sensor.
(d) Interchange the front passenger side rear airbag sensor with the driver side rear airbag sensor and connect the connectors to them.
(e) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
(f) Turn the ignition switch to the ON position, and wait for at least 60 seconds.
(g) Clear the DTCs stored in the memory (DTC Check / Clear).
(h) Turn the ignition switch to the LOCK position.
(i) Turn the ignition switch to the ON position, and wait for at least 60 seconds.
(j) Check the DTCs (DTC Check / Clear).
Result:
HINT: Codes other than DTC B1620/21 and B1625/22 may be output at this time, but they are not related to this check.
B -- REPLACE FRONT PASSENGER SIDE REAR AIRBAG SENSOR
A -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY
C -- USE SIMULATION METHOD TO CHECK