B1623
SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B1623/81: Side Airbag Sensor Assembly RH Initialization Incomplete
B1623/81 - Side Airbag Sensor Assembly RH Initialization Incomplete
DESCRIPTION
The circuit for the side collision sensor RH (to determine deployment of the curtain shield airbag RH) is composed of the center airbag sensor assembly and side airbag sensor RH (for rear side).
The side airbag sensor RH (for rear side) detects impacts to the vehicle and sends signals to the center airbag sensor assembly to determine if the airbag should be deployed.
DTC B1623/81 is recorded when a malfunction is detected in the circuit for the side collision sensor RH (to determine deployment of the curtain shield airbag RH).
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK PAST DTC
(a) Turn the ignition switch to ON, and wait for at least 60 seconds.
(b) Turn the ignition switch off.
(c) Turn the ignition switch to ON, and wait for at least 60 seconds.
(d) Check the past DTCs Reading and Clearing Diagnostic Trouble Codes.
Result
A -- GO TO DTC B1622/81 B1620
B -- GO TO DTC B1627/82 B1625
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 assembly and side airbag sensor RH (for front side).
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 assembly and side airbag sensor RH (for front side).
(b) Check that the connectors (on the center airbag sensor assembly side and side airbag sensor RH (for front side) side) are not damaged.
OK:
The connectors are not deformed or damaged.
NG -- REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.
4. CHECK SIDE AIRBAG SENSOR RH (FOR FRONT SIDE)
(a) Interchange the side airbag sensor RH (for front side) with side airbag sensor LH (for front side) 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 to 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 to ON, and wait for at least 90 seconds.
(g) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
Result
Text in Illustration
(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 (for front side) and side airbag sensor LH (for front side) to their original positions and connect the connectors to them.
A -- REPLACE SIDE AIRBAG SENSOR RH (FOR FRONT SIDE) Removal
B -- USE SIMULATION METHOD TO CHECK Diagnosis System
C -- Continue to next step.
5. CHECK SIDE AIRBAG SENSOR RH (FOR REAR SIDE) CIRCUIT
Text in Illustration
(a) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
(b) Turn the ignition switch to 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 1 and 2 of connector E.
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 E.
(i) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- CHECK FLOOR WIRE (SIDE AIRBAG SENSOR RH (REAR SIDE) - FRONT DOOR WIRE RH)
OK -- Continue to next step.
6. CHECK FLOOR WIRE (SIDE AIRBAG SENSOR RH (FOR REAR SIDE) - REAR AIRBAG SENSOR RH)
Text in Illustration
(a) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
(b) Turn the ignition switch to 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 2 and 1 of connector C.
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 C.
(i) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPLACE FLOOR WIRE
OK -- Continue to next step.
7. CHECK SIDE AIRBAG SENSOR RH (FOR REAR SIDE)
(a) Interchange the side airbag sensor RH with side airbag sensor LH (for rear side) 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 to 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 to ON, and wait for at least 90 seconds.
(g) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
Result
Text in Illustration
(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 side airbag sensor LH (for rear side) to their original positions and connect the connectors to them.
A -- REPLACE SIDE AIRBAG SENSOR RH (FOR REAR SIDE) Removal
B -- USE SIMULATION METHOD TO CHECK Diagnosis System
C -- Continue to next step.
8. CHECK REAR AIRBAG SENSOR RH
(a) Interchange the rear airbag sensor RH with rear airbag sensor 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 to 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 to ON, and wait for at least 90 seconds.
(g) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
Result
Text in Illustration
HINT
DTCs other than B1623/81 and B1628/82 may be output at this time, but they are not related to this check.
(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 rear airbag sensor RH and rear airbag sensor LH to their original positions and connect the connectors to them.
A -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY Removal
B -- REPLACE REAR AIRBAG SENSOR RH Removal
C -- USE SIMULATION METHOD TO CHECK Diagnosis System
9. CHECK FLOOR WIRE (SIDE AIRBAG SENSOR RH (REAR SIDE) - FRONT DOOR WIRE RH)
Text in Illustration
(a) Disconnect the floor wire connector from the front door wire RH.
(b) Connect the negative (-) terminal cable to the battery, 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:
(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 3 and 4 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 FRONT DOOR WIRE RH