DESCRIPTION
The passenger airbag ON/OFF indicator circuit consists of the airbag sensor assembly and passenger airbag ON/OFF indicator.
The passenger airbag ON/OFF indicator indicates the operation condition of the instrument panel passenger airbag assembly, front seat airbag and front seat outer belt assembly.
DTC B1660/43 is stored when a malfunction is detected in the passenger airbag ON/OFF indicator circuit.
DTC Code | Detection Condition | Trouble Area |
---|---|---|
B1660/43 | One of the following conditions is met:
|
|
WIRING DIAGRAM
*a | from ECU-IG No. 1 Fuse |
*b | Upper Console Panel Sub-assembly (Passenger Airbag ON/OFF Indicator) |
*c | Airbag Sensor Assembly |
CAUTION / NOTICE / HINT
Note
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work Click here.
When disconnecting the cable from the negative (-) battery terminal while performing repairs, some systems need to be initialized after the cable is reconnected Click here.
PROCEDURE
CHECK PASSENGER AIRBAG ON/OFF INDICATOR CONDITION
Turn the ignition switch to ON.
Check the passenger airbag ON/OFF indicator operation.
Tech Tips
Refer to the normal condition of the passenger airbag ON/OFF indicator Click here.
ON/OFF Indicator Illumination | Proceed to |
---|---|
One or both indicators are always on | A |
Both indicators are always off | B |
B |
CHECK CONNECTION OF CONNECTORS Click here |
A |
CHECK CONNECTION OF CONNECTORS
Turn the ignition switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Check that the connectors are properly connected to the airbag sensor assembly and upper console panel sub-assembly.
OK |
---|
The connectors are properly connected. |
NG |
CONNECT CONNECTORS PROPERLY |
OK |
CHECK CONNECTORS
Disconnect the connectors from the airbag sensor assembly and upper console panel sub-assembly.
*1 | Upper Console Panel Sub-assembly |
*2 | Airbag Sensor Assembly |
*3 | Instrument Panel Wire |
Check that the connectors (on the airbag sensor assembly side and upper console panel sub-assembly side) are not damaged.
OK |
---|
The connectors are not deformed or damaged. |
NG |
REPLACE INSTRUMENT PANEL WIRE |
OK |
CHECK PASSENGER AIRBAG ON/OFF INDICATOR
Connect the connector to the upper console panel sub-assembly.
Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
Turn the ignition switch to ON.
Check the passenger airbag ON/OFF indicator operation.
OK |
---|
The passenger airbag ON/OFF indicator does not come on. |
NG |
CHECK INSTRUMENT PANEL WIRE Click here |
OK |
CHECK FOR DTC
*1 | Upper Console Panel Sub-assembly |
*2 | Airbag Sensor Assembly |
Connect the connector to the airbag sensor assembly.
Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
Turn the ignition switch to ON, and wait for at least 60 seconds.
Clear the DTCs Click here.
Turn the ignition switch off.
Turn the ignition switch to ON, and wait for at least 60 seconds.
Check for DTCs Click here.
OK |
---|
DTC B1660/43 is not output. |
Tech Tips
Codes other than DTC B1660/43 may be output at this time, but they are not related to this check.
OK |
USE SIMULATION METHOD TO CHECK Click here |
NG |
REPLACE AIRBAG SENSOR ASSEMBLY Click here |
CHECK INSTRUMENT PANEL WIRE
Disconnect the connector from the upper console panel sub-assembly.
*1 | Upper Console Panel Sub-assembly | *2 | Airbag Sensor Assembly |
*3 | Instrument Panel Wire | *4 | Connector C |
*5 | Connector B | *6 | Service Wire |
*a | Front view of wire harness connector (to Upper Console Panel Sub-assembly) |
*b | Rear view of wire harness connector (to Airbag Sensor Assembly) |
Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
Standard Voltage | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
Turn the ignition switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Using a service wire, connect terminals 23 (PAON) and 17 (P-AB) of connector B.
Note
Do not forcibly insert the service wire into the terminals of the connector when connecting a service wire.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||
---|---|---|---|---|---|---|
|
Disconnect the service wire from connector B.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
OK |
REPLACE UPPER CONSOLE PANEL SUB-ASSEMBLY Click here |
NG |
REPLACE INSTRUMENT PANEL WIRE |
CHECK CONNECTION OF CONNECTORS
Turn the ignition switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Check that the connectors are properly connected to the airbag sensor assembly and upper console panel sub-assembly.
OK |
---|
The connectors are properly connected. |
NG |
CONNECT CONNECTORS PROPERLY |
OK |
CHECK CONNECTORS
*1 | Upper Console Panel Sub-assembly |
*2 | Airbag Sensor Assembly |
*3 | Instrument Panel Wire |
Disconnect the connectors from the airbag sensor assembly and upper console panel sub-assembly.
Check that the connectors (on the airbag sensor assembly side and upper console panel sub-assembly side) are not damaged.
OK |
---|
The connectors are not deformed or damaged. |
NG |
REPLACE INSTRUMENT PANEL WIRE |
OK |
CHECK INSTRUMENT PANEL WIRE
Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
*1 | Upper Console Panel Sub-assembly | *2 | Airbag Sensor Assembly |
*3 | Instrument Panel Wire | *4 | Connector C |
*5 | Connector B | *6 | Service Wire |
*a | Front view of wire harness connector (to Upper Console Panel Sub-assembly) |
*b | Rear view of wire harness connector (to Airbag Sensor Assembly) |
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
Standard Voltage | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
Turn the ignition switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Using a service wire, connect terminals 23 (PAON) and 17 (P-AB) of connector B.
Note
Do not forcibly insert the service wire into the terminals of the connector when connecting a service wire.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||
---|---|---|---|---|---|---|
|
Disconnect the service wire from connector B.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
NG |
REPLACE INSTRUMENT PANEL WIRE |
OK |
CHECK PASSENGER AIRBAG ON/OFF INDICATOR (SOURCE VOLTAGE)
*a | Front view of wire harness connector (to Upper Console Panel Sub-assembly) |
Connect the connectors to the airbag sensor assembly.
Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
Standard Voltage | ||||||
---|---|---|---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS AND CONNECTOR |
OK |
CHECK PASSENGER AIRBAG ON/OFF INDICATOR
*a | Rear view of wire harness connector (to Airbag Sensor Assembly) |
Turn the ignition switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Connect the connector to the upper console panel sub-assembly.
Disconnect the connectors from the airbag sensor assembly.
Using a service wire, connect terminal 23 (PAON) and body ground.
Using a service wire, connect terminal 17 (P-AB) and body ground.
Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
Turn the ignition switch to ON.
Check the indicator according to the table below.
OK | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
NG |
REPLACE UPPER CONSOLE PANEL SUB-ASSEMBLY Click here |
OK |
CHECK FOR DTC
*1 | Upper Console Panel Sub-assembly |
*2 | Airbag Sensor Assembly |
Turn the ignition switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Connect the connectors to the airbag sensor assembly.
Connect the cable to the negative (-) battery terminal and wait for at least 2 seconds.
Turn the ignition switch to ON, and wait for at least 60 seconds.
Clear the DTCs Click here.
Turn the ignition switch off.
Turn the ignition switch to ON, and wait for at least 60 seconds.
Check for DTCs Click here.
OK |
---|
DTC B1660/43 is not output. |
Tech Tips
Codes other than DTC B1660/43 may be output at this time, but they are not related to this check.
OK |
USE SIMULATION METHOD TO CHECK Click here |
NG |
REPLACE AIRBAG SENSOR ASSEMBLY Click here |