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
Situations when it is necessary to contact dealers before towing
The following may indicate a problem with your transaxle. Contact
your Toyota dealer or commercial towing service before towing.
The engine is running but the vehicle does not move.
The vehicle makes an abnormal sound
Towing with a sling-type truck
Do not tow with a sling-type truck
to p ...
DRL Relay Circuit
DESCRIPTION
The Multiplex network body ECU controls the DRL No.2 relay
WIRING DIAGRAM
INSPECTION PROCEDURE
1 PERFORM ACTIVE TEST BY INTELLIGENT TESTER
Connect the intelligent tester to DLC3.
Turn the ignition switch ON and push the intelligent
tester main switch ON.
Sel ...
No Answer-Back (Hazard Warning Light and Wireless Door Lock
Buzzer)
DESCRIPTION
If there is no answer-back of the hazard light signal and the wireless door lock
buzzer although the
wireless control function is operating normally, there might be a malfunction in
the hazard light signal and
the wireless door lock buzzer signal which are output from the multiple ...