B1833

SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1830/57: Short in Driver Side Curtain Shield Squib Circuit

DTC B1830/57 - Short in Driver Side Curtain Shield Squib Circuit

DTC B1831/57 - Open in Driver Side Curtain Shield Squib Circuit

DTC B1832/57 - Short to GND in Driver Side Curtain Shield Squib Circuit

DTC B1833/57 - Short to B+ in Driver Side Curtain Shield Squib Circuit

DESCRIPTION

The driver side curtain shield squib circuit consists of the center airbag sensor and the curtain shield airbag LH.
The circuit instructs the SRS to deploy when deployment conditions are met.
These DTCs are recorded when a malfunction is detected in the driver side curtain shield squib circuit.






WIRING DIAGRAM





INSPECTION PROCEDURE
HINT:
- Perform the simulation method by selecting the "CHECK MODE" (signal check) with the Techstream Check Mode Procedure.
- After selecting the "CHECK MODE" (signal check), perform the simulation method by wiggling each connector of the airbag system or driving the vehicle on various types of roads Check Mode Procedure.

PROCEDURE

1. CHECK CURTAIN SHIELD AIRBAG ASSEMBLY LH (DRIVER SIDE CURTAIN SHIELD SQUIB)




(a) Turn the power switch OFF.
(b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
(c) Disconnect the connector from the curtain shield airbag LH.
(d) Connect SST (resistance 2.1 Ohms) to connector C.
CAUTION: Never connect SST to the curtain shield airbag LH (driver side curtain shield squib) for measurement, as this may lead to a serious injury due to airbag deployment.
NOTICE:
- Do not forcibly insert SST into the terminals of the connector when connecting.
- Insert SST straight into the terminals of the connector.

SST: 09843-18061
(e) Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
(f) Turn the power switch ON (IG), and wait for at least 60 seconds.
(g) Clear the DTCs DTC Check / Clear.
(h) Turn the power switch OFF.
(i) Turn the power switch ON (IG), and wait for at least 60 seconds.
(j) Check the DTCs DTC Check / Clear.
OK:
DTC B1830, B1831, B1832, B1833 or 57 is not output.
HINT: DTCs other than DTC B1830, B1831, B1832, B1833 or 57 may be output at this time, but they are not related to this check.

OK -- REPLACE CURTAIN SHIELD AIRBAG ASSEMBLY LH
NG -- Continue to next step.

2. CHECK CONNECTOR
(a) Turn the power switch OFF.
(b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
(c) Disconnect the SST from connector C.
(d) Check that the floor wire connector (on the curtain shield LH side) is not damaged.
OK:
Lock button is not disengaged, and claw of lock is not deformed or damaged.
NG -- REPAIR OR REPLACE FLOOR WIRE
OK -- Continue to next step.

3. CHECK FLOOR WIRE (DRIVER SIDE CURTAIN SHIELD SQUIB CIRCUIT)




(a) Disconnect the connector from the center airbag sensor.
(b) Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
(c) Turn the power switch ON (IG).
(d) Measure the voltage of the wire harness side connector.
Standard voltage:





(e) Turn the power switch OFF.
(f) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
(g) Measure the resistance of the wire harness side connector.
Standard resistance:





(h) Release the activation prevention mechanism built into connector B Diagnosis System.
(i) Measure the resistance of the wire harness side connector.
Standard resistance:






NG -- REPAIR OR REPLACE FLOOR WIRE
OK -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY