DTC B1150/23 Occupant Classification System Malfunction
DESCRIPTION
The occupant classification system circuit consists of the center airbag sensor assembly and the occupant classification ECU.
If the center airbag sensor assembly receives signals from the occupant classification ECU, it determines whether or not the front passenger airbag, the front seat side airbag RH, and front seat belt pretensioner RH should be operated.
DTC B1150/23 is recorded when a malfunction is detected in the occupant classification system circuit.
DTC No. |
DTC Detecting Condition |
Trouble Area |
B1150/23 |
|
|
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK DTC (OCCUPANT CLASSIFICATION ECU)
OK: DTC is not output.
GO TO INSPECTION PROCEDURE
OF DTC
OUTPUT
2 CHECK DTC (CENTER AIRBAG SENSOR ASSEMBLY)
OK: DTC B1150/23 is not output. HINT: Codes other than code B1150/23 may be output at this time, but they are not related to this check.
Go to step 3
USE SIMULATION METHOD TO CHECK
3 CHECK CONNECTION OF CONNECTORS
OK: The connectors are connected.
CONNECT CONNECTORS
4 CHECK OCCUPANT CLASSIFICATION ECU CIRCUIT (SHORT TO GROUND)
Standard resistance
Go to step 8
5 CHECK OCCUPANT CLASSIFICATION ECU CIRCUIT (SHORT TO B+)
Standard voltage
Go to step 9
6 CHECK OCCUPANT CLASSIFICATION ECU CIRCUIT (SHORT)
Standard resistance
Go to step 10
7 CHECK OCCUPANT CLASSIFICATION ECU CIRCUIT (OPEN)
NOTICE: Do not forcibly insert a service wire into the terminals of the connector when connecting.
NOTICE: Do not forcibly insert a service wire into the terminals of the connector when connecting.
Standard resistance
Go to step 11
CHECK FRONT SEAT WIRE RH (SHORT TO GROUND)
Standard resistance
REPAIR OR REPLACE FRONT SEAT
WIRE
RH
REPAIR OR REPLACE FLOOR WIRE NO.2
9 CHECK FRONT SEAT WIRE RH (SHORT TO B+)
Standard voltage
REPAIR OR REPLACE FRONT SEAT
WIRE
RH
REPAIR OR REPLACE FLOOR WIRE NO.2
10 CHECK FRONT SEAT WIRE RH (SHORT)
Standard resistance
REPAIR OR REPLACE FRONT SEAT
WIRE
RH
REPAIR OR REPLACE FLOOR WIRE NO.2
11 CHECK FRONT SEAT WIRE RH (OPEN)
NOTICE: Do not forcibly insert a service wire into the terminals of the connector when connecting.
NOTICE: Do not forcibly insert a service wire into the terminals of the connector when connecting.
Standard resistance
REPAIR OR REPLACE FRONT SEAT
WIRE
RH
REPAIR OR REPLACE FLOOR WIRE NO.2
TS and CG Terminal Circuit
DESCRIPTION
The Test Mode (signal check) circuit detects trouble in the sensor or switch
signal, which cannot be
detected by the DTC check.
Connecting terminals TS and CG of the DLC3 starts the check.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR (BETWEEN SKID CONTR ...
DTC check / clear
1. CHECK DTC (USING INTELLIGENT TESTER)
Checking DTCs.
Connect the intelligent tester to the DLC3.
Turn the ignition switch ON.
Read DTCs by following the prompts on the
tester screen.
HINT:
Refer to the intelligent tester operator's manual
for furthe ...
Horn
To sound the horn, press on or
close to the mark.
WARNINGCaution while driving
Do not adjust the steering wheel while driving.
Doing so may cause the driver to mishandle the vehicle and cause an
accident,
resulting in death or serious injury.
After adjusting the steeri ...