Passenger Airbag ON/OFF Indicator Circuit Malfunction - Airbag System
SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1660/43: Passenger Airbag ON/OFF Indicator Circuit Malfunction
DTC B1660/43 - Passenger Airbag ON/OFF Indicator Circuit Malfunction
DESCRIPTION
The passenger airbag ON/OFF indicator circuit consists of the center airbag sensor and the passenger airbag ON/OFF indicator.
The passenger airbag ON/OFF indicator indicates the operation condition of the front passenger airbag, front seat side airbag RH and front seat outer belt RH.
DTC B1660/43 is recorded when a malfunction is detected in the passenger airbag ON/OFF indicator circuit.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CONDITION
(a) Turn the ignition switch to ON.
(b) Check the passenger airbag ON/OFF indicator operation.
HINT: Refer to the normal condition of the passenger airbag ON/OFF indicator Diagnosis System.
Result
B -- CHECK CONNECTION OF CONNECTORS
A -- Continue to next step.
2. CHECK CONNECTION OF CONNECTORS
(a) Turn the ignition switch to 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 telltale light.
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 the telltale light.
(b) Check that the connectors (on the center airbag sensor side and telltale light side) are not damaged.
OK:
The connectors are not deformed or damaged.
NG -- REPLACE INSTRUMENT PANEL WIRE ASSEMBLY
OK -- Continue to next step.
4. CHECK PASSENGER AIRBAG ON/OFF INDICATOR
(a) Connect the connector to the telltale light.
(b) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
(c) Turn the ignition switch to ON.
(d) Check the passenger airbag ON/OFF indicator operation.
OK:
The passenger airbag ON/OFF indicator does not come on.
NG -- CHECK INSTRUMENT PANEL WIRE ASSEMBLY (CENTER AIRBAG SENSOR - TELLTALE LIGHT)
OK -- Continue to next step.
5. CHECK CENTER AIRBAG SENSOR
(a) Connect the connector to the center airbag sensor.
(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 DTC Check / Clear.
(e) Turn the ignition switch to OFF.
(f) Turn the ignition switch to ON, and wait for at least 60 seconds.
(g) Check for DTCs DTC Check / Clear.
OK:
DTC B1660/43 is not output.
HINT: Codes other than DTC B1660/43 may be output at this time, but they are not related to this check.
NG -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY
OK -- USE SIMULATION METHOD TO CHECK
6. CHECK INSTRUMENT PANEL WIRE ASSEMBLY (CENTER AIRBAG SENSOR - TELLTALE LIGHT)
(a) Turn the ignition switch to OFF.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) Disconnect the connector from the telltale light.
(d) Using a service wire, connect terminals 23 (PAON) and 17 (P-AB) of connector B.
NOTICE: Do not forcibly insert a service wire into the terminals of the connector when connecting the wire.
(e) Measure the resistance according to the value(s) in the table below.
Standard resistance:
(f) Disconnect the service wire from connector B.
(g) Measure the resistance according to the value(s) in the table below.
Standard resistance:
(h) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
(i) Turn the ignition switch to ON.
(j) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- REPLACE INSTRUMENT PANEL WIRE ASSEMBLY
OK -- REPLACE TELLTALE LIGHT ASSEMBLY
7. CHECK CONNECTION OF CONNECTORS
(a) Turn the ignition switch to 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 telltale light.
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 the telltale light.
(b) Check that the connectors (on the center airbag sensor side and telltale light side) are not damaged.
OK:
The connectors are not deformed or damaged.
NG -- REPLACE INSTRUMENT PANEL WIRE ASSEMBLY
OK -- Continue to next step.
9. CHECK INSTRUMENT PANEL WIRE ASSEMBLY (CENTER AIRBAG SENSOR - TELLTALE LIGHT)
(a) Turn the ignition switch to OFF.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) Disconnect the connector from the telltale light.
(d) Using a service wire, connect terminals 23 (PAON) and 17 (P-AB) of connector B.
NOTICE: Do not forcibly insert a service wire into the terminals of the connector when connecting the wire.
(e) Measure the resistance according to the value(s) in the table below.
Standard resistance:
(f) Disconnect the service wire from connector B.
(g) Measure the resistance according to the value(s) in the table below.
Standard resistance:
(h) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
(i) Turn the ignition switch to ON.
(j) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- REPLACE INSTRUMENT PANEL WIRE ASSEMBLY
OK -- Continue to next step.
10. CHECK PASSENGER AIRBAG ON/OFF INDICATOR (SOURCE VOLTAGE)
(a) Connect the connectors to the center airbag sensor.
(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:
NG -- REPLACE HARNESS AND CONNECTOR (TELLTALE LIGHT - BATTERY)
OK -- Continue to next step.
11. CHECK PASSENGER AIRBAG ON/OFF INDICATOR
(a) Turn the ignition switch to OFF.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) Connect the connector to the telltale light.
(d) Disconnect the connectors from 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 to ON.
(g) Check the indicator according to the value(s) in the table below.
OK:
NG -- REPLACE TELLTALE LIGHT ASSEMBLY
OK -- Continue to next step.
12. CHECK CENTER AIRBAG SENSOR
(a) Turn the ignition switch to OFF.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) Connect the connectors to the center airbag sensor.
(d) Connect the negative (-) terminal cable to the battery and wait for at least 2 seconds.
(e) Turn the ignition switch to ON, and wait for at least 60 seconds.
(f) Clear the DTCs DTC Check / Clear.
(g) Turn the ignition switch to OFF.
(h) Turn the ignition switch to ON, and wait for at least 60 seconds.
(i) Check for DTCs DTC Check / Clear.
OK:
DTC B1660/43 is not output.
HINT: Codes other than DTC B1660/43 may be output at this time, but they are not related to this check.
NG -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY
OK -- USE SIMULATION METHOD TO CHECK