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
DTC No. |
DTC Detecting Condition |
Trouble Area |
B1149/37 |
|
|
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.
Go to step 2
USE SIMULATION METHOD TO CHECK
2 CHECK CONNECTION OF CONNECTORS
OK: The connectors are connected
CONNECT CONNECTORS
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
Go to step 5
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
REPLACE FRONT AIRBAG SENSOR LH
REPLACE CENTER AIRBAG SENSOR ASSEMBLY
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 INSTRUMENT PANEL WIRE
REPAIR OR REPLACE ENGINE ROOM MAIN WIRE
Disposal
HINT:
Use the same procedures for the RH side and LH side.
The procedures listed below are for the LH side.
When scrapping a vehicle equipped with the SRS or
disposing of the front seat side airbag assembly, be sure to
deploy the airbag first in accordance with the proc ...
Terminals of ecm
1. Ecm
Hint:
each ecm terminal's standard voltage is shown in the
table below.
In the table, first follow the information under "condition".
Look under "symbols (terminal no.)" For the terminals to
inspected. The standard voltage between the terminals
is shown under ...
Removal
1. REMOVE REAR WINDOW SIDE GARNISH
ASSEMBLY
2. REMOVE REAR DOOR WINDOW FRAME SUBASSEMBLY
3. REMOVE SIDE TRIM BOARD COVER REAR
4. REMOVE REAR DOOR TRIM BOARD SUBASSEMBLY
5. REMOVE REAR DOOR GLASS RUN
6. REMOVE SLIDE DOOR WINDOW ASSEMBLY
7. REMOVE REAR DOOR GLASS WEATHERSTRIP
Put pro ...