DTC B1149/37 Front Airbag Sensor LH Circuit Malfunction
DESCRIPTION
The front airbag sensor LH circuit consists of the center airbag sensor assembly and front airbag sensor LH.
If the center airbag sensor assembly receives signals from the front airbag sensor LH, it judges whether or not the SRS should be activated.
DTC B1149/37 is recorded when a malfunction is detected in the front airbag sensor LH circuit.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK DTC
OK: DTC B1149/37 is not output.
HINT: Codes other than DTC B1149/37 may be output at this time, but they are not related to this check.
USE SIMULATION METHOD TO CHECK
2 CHECK CONNECTION OF CONNECTORS
OK: The connectors are connected.
3 CHECK FRONT AIRBAG SENSOR LH CIRCUIT (OPEN)
NOTICE: Do not forcibly insert a service wire into the terminals of the connector when connecting.
Standard resistance
4 CHECK FRONT AIRBAG SENSOR LH
Result
HINT: Codes other than DTC B1148/36 and B1149/37 may be output at this time, but they are not related to this check.
USE SIMULATION METHOD TO CHECK
5 CHECK INSTRUMENT PANEL WIRE (OPEN)
HINT: The service wire has already been inserted into connector "B".
Standard resistance
REPAIR OR REPLACE ENGINE ROOM MAIN WIRE
Problem symptoms table
HINT:
Proceed to the troubleshooting for each circuit in the table
below.
AIRBAG SYSTEM
Symptom
Suspected Area
The SRS warning light goes off after the primary
check, but then comes on.
SRS Warning Light Remains ON
When the ignition switch is turned to t ...
Concept, General information, Safety information
Concept
The system may prevent some accidents with
cross traffic at intersections and junctions. In the
event of an accident, the system may reduce impact
speed.
The system sounds a warning in the city speed
range before an imminent collision and activates
brakes independently, if needed.
General i ...
System description
1. GENERAL
This system uses ultrasonic sensors to detect any
obstacles at the corners and the rear of the vehicle.
The system then informs the driver of the distance
between the sensors and the obstacles as well as
their positions by indicating them on the clearance
sonar displ ...