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.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK DTC (OCCUPANT CLASSIFICATION ECU)
OK: DTC is not 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.
USE SIMULATION METHOD TO CHECK
3 CHECK CONNECTION OF CONNECTORS
OK: The connectors are connected.
4 CHECK OCCUPANT CLASSIFICATION ECU CIRCUIT (SHORT TO GROUND)
Standard resistance
5 CHECK OCCUPANT CLASSIFICATION ECU CIRCUIT (SHORT TO B+)
Standard voltage
6 CHECK OCCUPANT CLASSIFICATION ECU CIRCUIT (SHORT)
Standard resistance
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
8 CHECK FRONT SEAT WIRE RH (SHORT TO GROUND)
Standard resistance
REPAIR OR REPLACE FLOOR WIRE NO.2
9 CHECK FRONT SEAT WIRE RH (SHORT TO B+)
Standard voltage
REPAIR OR REPLACE FLOOR WIRE NO.2
10 CHECK FRONT SEAT WIRE RH (SHORT)
Standard resistance
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 FLOOR WIRE NO.2
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