B1648
SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1627/82,B1628/82,B1637/82,B1638/82,B1647/82,B1648/82: Lost Communication with Front Passenger Side - Side Airbag Sensor Assembly
DTC B1627/82 - Lost Communication with Front Passenger Side - Side Airbag Sensor Assembly
DTC B1628/82 - Front Passenger Side - Side Airbag Sensor Assembly Initialization Incomplete
DTC B1637/82 - Lost Communication with Passenger Side Rear Airbag Sensor
DTC B1638/82 - Passenger Side Rear Airbag Sensor Initialization Incomplete
DTC B1647/82 - Lost Communication with Front Passenger Side Satellite Sensor Bus
DTC B1648/82 - Front Passenger Side Satellite Sensor Bus Initialization Incomplete
DESCRIPTION
The circuit for the front passenger side - side collision sensor (to determine deployment of the front seat side airbag assembly RH and curtain shield airbag assembly RH) is composed of the center airbag sensor assembly, side airbag sensor RH, and rear airbag sensor RH.
The side airbag sensor RH and rear airbag sensor RH detect impacts to the vehicle and send signals to the center airbag sensor assembly to determine if the airbag should be deployed.
Theses DTCs are recorded when a malfunction is detected in the circuit for the front passenger side - side collision sensor (to determine deployment of the front seat side airbag assembly RH and curtain shield airbag assembly RH).
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK PRESENT DTC
(a) Turn the ignition switch on (IG), and wait for at least 60 seconds.
(b) Check the present DTCs DTC Check / Clear.
Result:
HINT:
- DTCs indicating communication errors will be changed to DTCs indicating errors in initialization by turning the ignition switch off and then on (IG) again.
- Codes other than present DTC B1627, B1628, B1637, B1638, B1647, B1648, and 82 may be output at this time, but they are not related to this check.
E -- USE SIMULATION METHOD TO CHECK
D -- CHECK SIDE AIRBAG SENSOR RH
C -- CHECK CONNECTORS
B -- CHECK CONNECTORS
A -- Continue to next step.
2. CHECK PAST DTC
(a) Check the past DTCs DTC Check / Clear.
Result:
HINT: Codes other than past DTC B1627 and B1637 may be output at this time, but they are not related to this check.
C -- CHECK SIDE AIRBAG SENSOR RH
B -- CHECK CONNECTORS
A -- Continue to next step.
3. CHECK 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, rear airbag sensor RH and the side airbag sensor RH.
OK:
The connectors are properly connected.
HINT: If the connectors are not connected securely, reconnect the connectors and proceed to the next inspection.
(d) Disconnect the connectors from the center airbag sensor assembly, rear airbag sensor RH and side airbag sensor RH.
(e) Check that the terminals of connectors are not damaged.
OK:
The terminals are not deformed or damaged.
NG -- REPLACE FLOOR WIRE
OK -- Continue to next step.
4. CHECK FLOOR WIRE (OPEN)
(a) Using SST, connect terminals 17 (BBP+) and 18 (BBP-) of connector B.
NOTE: Do not forcibly insert SST into the terminals of the connector when connecting.
SST: 09843-18040
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE FLOOR WIRE
OK -- Continue to next step.
5. CHECK FLOOR WIRE (SHORT)
(a) Disconnect SST from connector B.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE FLOOR WIRE
OK -- Continue to next step.
6. CHECK FLOOR WIRE (SHORT TO B+)
(a) Connect the negative (-) terminal cable to the battery.
(b) Turn the ignition switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- REPLACE FLOOR WIRE
OK -- Continue to next step.
7. CHECK FLOOR WIRE (SHORT TO GROUND)
(a) Turn the ignition switch off.
(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 -- REPLACE FLOOR WIRE
OK -- Continue to next step.
8. CHECK FLOOR WIRE (OPEN)
(a) Using SST, connect terminals 2 (BCR+) and 1 (BCR-) of connector C.
NOTE: Do not forcibly insert SST into the terminals of the connector when connecting.
SST: 09843-18040
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE FLOOR WIRE
OK -- Continue to next step.
9. CHECK FLOOR WIRE (SHORT)
(a) Disconnect SST from connector C.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE FLOOR WIRE
OK -- Continue to next step.
10. CHECK FLOOR WIRE (SHORT TO B+)
(a) Connect the negative (-) terminal cable to the battery.
(b) Turn the ignition switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- REPLACE FLOOR WIRE
OK -- Continue to next step.
11. CHECK FLOOR WIRE (SHORT TO GROUND)
(a) Turn the ignition switch off.
(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 -- REPLACE FLOOR WIRE
OK -- Continue to next step.
12. CHECK SIDE AIRBAG SENSOR RH
(a) Connect the connectors to the rear airbag sensor RH and the center airbag sensor assembly.
(b) Interchange the side airbag sensor LH with RH and connect the connectors to them.
(c) Connect the negative (-) terminal cable to the battery.
(d) Turn the ignition switch on (IG), and wait for at least 60 seconds.
(e) Clear the DTCs stored in the memory DTC Check / Clear.
(f) Turn the ignition switch off.
(g) Turn the ignition switch on (IG), and wait for at least 60 seconds.
(h) Check for DTCs DTC Check / Clear.
Result:
HINT: Codes other than DTC B1623, B1642, B1643, or 81 and B1628, B1647, B1648, or 82 may be output at this time, but they are not related to this check.
C -- USE SIMULATION METHOD TO CHECK
B -- REPLACE SIDE AIRBAG SENSOR RH
A -- Continue to next step.
13. CHECK REAR AIRBAG SENSOR RH
(a) Turn the ignition switch off.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) Return the side airbag sensor LH and RH to their original positions and connect the connectors to them.
(d) Interchange the rear airbag sensor LH with RH and connect the connectors to them.
(e) Connect the negative (-) terminal cable to the battery.
(f) Turn the ignition switch on (IG), and wait for at least 60 seconds.
(g) Clear the DTCs stored in the memory DTC Check / Clear.
(h) Turn the ignition switch off.
(i) Turn the ignition switch on (IG), and wait for at least 60 seconds.
(j) Check for DTCs DTC Check / Clear.
Result:
HINT: Codes other than DTC B1623, B1642, B1643, or 81 and B1628, B1647, B1648, or 82 may be output at this time, but they are not related to this check.
C -- REPLACE REAR AIR BAG SENSOR RH
B -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY
A -- USE SIMULATION METHOD TO CHECK
14. CHECK 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 side airbag sensor RH and the rear airbag sensor RH.
OK:
The connectors are properly connected.
HINT: If the connectors are not connected securely, reconnect the connectors and proceed to the next inspection.
(d) Disconnect the connectors from the side airbag sensor RH and rear airbag sensor RH.
(e) Check that the terminals of connectors are not damaged.
OK:
The terminals are not deformed or damaged.
NG -- REPLACE FLOOR WIRE
OK -- Continue to next step.
15. CHECK FLOOR WIRE (OPEN)
(a) Using SST, connect terminals 2 (BCR+) and 1 (BCR-) of connector C.
NOTE: Do not forcibly insert SST into the terminals of the connector when connecting.
SST: 09843-18040
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE FLOOR WIRE
OK -- Continue to next step.
16. CHECK FLOOR WIRE (SHORT)
(a) Disconnect SST from connector C.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE FLOOR WIRE
OK -- Continue to next step.
17. CHECK FLOOR WIRE (SHORT TO B+)
(a) Connect the negative (-) terminal cable to the battery.
(b) Turn the ignition switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- REPLACE FLOOR WIRE
OK -- Continue to next step.
18. CHECK FLOOR WIRE (SHORT TO GROUND)
(a) Turn the ignition switch off.
(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 -- REPLACE FLOOR WIRE
OK -- Continue to next step.
19. CHECK SIDE AIRBAG SENSOR RH
(a) Connect the connector to the rear airbag sensor RH.
(b) Interchange the side airbag sensor LH with RH and connect the connectors to them.
(c) Connect the negative (-) terminal cable to the battery.
(d) Turn the ignition switch on (IG), and wait for at least 60 seconds.
(e) Clear the DTCs stored in the the memory DTC Check / Clear.
(f) Turn the ignition switch off.
(g) Turn the ignition switch on (IG), and wait for at least 60 seconds.
(h) Check for DTCs DTC Check / Clear.
Result:
HINT: Codes other than DTC B1632 or B1633 and B1637 or B1638 may be output at this time, but they are not related to this check.
C -- USE SIMULATION METHOD TO CHECK
B -- REPLACE SIDE AIRBAG SENSOR RH
A -- Continue to next step.
20. CHECK REAR AIRBAG SENSOR RH
(a) Turn the ignition switch off.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) Return the side airbag sensor LH and RH to their original positions and connect the connectors to them.
(d) Interchange the rear airbag sensor LH with RH and connect the connectors to them.
(e) Connect the negative (-) terminal cable to the battery.
(f) Turn the ignition switch on (IG), and wait for at least 60 seconds.
(g) Clear the DTCs stored in the memory DTC Check / Clear.
(h) Turn the ignition switch off.
(i) Turn the ignition switch on (IG), and wait for at least 60 seconds.
(j) Check for DTCs DTC Check / Clear.
Result:
HINT: Codes other than DTC B1632, B1633, B1637 and B1638 may be output at this time, but they are not related to this check.
C -- REPLACE REAR AIR BAG SENSOR RH
B -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY
A -- USE SIMULATION METHOD TO CHECK
21. CHECK SIDE AIRBAG SENSOR RH
(a) Turn the ignition switch off.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) Interchange the side airbag sensor LH with RH and connect the connectors to them.
(d) Connect the negative (-) terminal cable to the battery.
(e) Turn the ignition switch on (IG), and wait for at least 60 seconds.
(f) Clear the DTCs stored in the memory DTC Check / Clear.
(g) Turn the ignition switch off.
(h) Turn the ignition switch on (IG), and wait for at least 60 seconds.
(i) Check for DTCs DTC Check / Clear.
Result:
HINT: Codes other than DTC B1622 and B1627 may be output at this time, but they are not related to this check.
C -- REPLACE SIDE AIRBAG SENSOR RH
B -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY
A -- USE SIMULATION METHOD TO CHECK