B1661

SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B1661/44: Roll Over Cut Off Indicator Malfunction
B1661/44 - Roll Over Cut Off Indicator Malfunction

DESCRIPTION

The curtain airbag cutoff switch is a mechanism that operates both the right and left sides of the curtain shield airbag and the front seat outer belt when the center airbag sensor detects a roll-over.

The RSCA OFF indicator is installed in the combination meter.

If the curtain airbag cutoff switch is operated, the indicator comes on to inform the driver that the roll-over detection system is not operating.

The initial setting of the roll-over detection system is on. This system automatically operates every time the ignition switch is turned to ON.





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
When disconnecting the cable from the negative (-) battery terminal while performing repairs, some systems need to be initialized after the cable is reconnected Repair Instruction - Initialization.

PROCEDURE

1. CHECK COMBINATION METER (SOURCE VOLTAGE)

(a) Turn the ignition switch off.





(b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.

(c) Remove the combination meter with the connector connected.

(d) Disconnect the connector from the center airbag sensor.

(e) Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.

(f) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





Text in Illustration





NG -- GO TO METER / GAUGE SYSTEM How To Proceed With Troubleshooting
OK -- Continue to next step.

2. CHECK INSTRUMENT PANEL WIRE (CENTER AIRBAG SENSOR - COMBINATION METER)

(a) Turn the ignition switch off.





Text in Illustration





(b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.

(c) Disconnect the connectors from the center airbag sensor and combination meter.

(d) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





(e) Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.

(f) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





NG -- REPLACE INSTRUMENT PANEL WIRE
OK -- Continue to next step.

3. INSPECT CURTAIN AIRBAG CUTOFF SWITCH

(a) Turn the ignition switch off.





(b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.

(c) Remove the curtain airbag cutoff switch Removal.

(d) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





Text in Illustration





NG -- REPLACE CURTAIN AIRBAG CUTOFF SWITCH Removal
OK -- Continue to next step.

4. CHECK INSTRUMENT PANEL WIRE (CENTER AIRBAG SENSOR - CURTAIN AIRBAG CUTOFF SWITCH)

(a) Turn the ignition switch off.





Text in Illustration





(b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.

(c) Disconnect the connectors from the center airbag sensor and curtain airbag cutoff switch.

(d) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





(e) Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.

(f) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





NG -- REPLACE INSTRUMENT PANEL WIRE

OK -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY Removal