Toyota Sienna Service Manual: Diagnostic trouble code chart
1. DTCS FOR OCCUPANT CLASSIFICATION SYSTEM
If a trouble code is displayed during the DTC check, check the circuit listed for the code in the table below (proceed to the page listed for that circuit).
HINT: When DTC B1150/23 is detected as a result of troubleshooting for the airbag system, perform troubleshooting for the Occupant Classification System as shown in the chart below.
Occupant Classification ECU
- Passenger Side Buckle Switch Circuit Malfunction
- Front Occupant Classification Sensor LH Circuit Malfunction
- Front Occupant Classification Sensor RH Circuit Malfunction
- Rear Occupant Classification Sensor LH Circuit Malfunction
- Rear Occupant Classification Sensor RH Circuit Malfunction
- Front Occupant Classification Sensor LH Collision Detection
- Front Occupant Classification Sensor RH Collision Detection
- Rear Occupant Classification Sensor LH Collision Detection
- Rear Occupant Classification Sensor RH Collision Detection
- Center Airbag Sensor Assembly Communication Circuit Malfunction
- Occupant Classification Sensor Power Supply Circuit Malfunction
- Open in Occupant Classification ECU Battery Positive Line
- Occupant Classification ECU Malfunction
- Sleep Operation Failure of Occupant Classification ECU
- Trouble in Passenger Airbag ON / OFF Indicator
Data list / active test
HINT:
By accessing the DATA LIST displayed by the intelligent
tester, you can perform such functions as reading the values
of switches and sensors without removing any parts. Reading
the DATA LIST ...
Passenger Side Buckle Switch Circuit Malfunction
DTC B1771 Passenger Side Buckle Switch Circuit Malfunction
DESCRIPTION
The passenger side buckle switch circuit consists of the occupant
classification ECU and the front seat
inner belt assembly ...
Other materials:
Open in Front Pretensioner Squib LH Circuit
DTC B0136/74 Open in Front Pretensioner Squib LH Circuit
DESCRIPTION
The front pretensioner squib LH circuit consists of the center airbag sensor
assembly and the front seat
outer belt assembly LH.
This circuit instructs the SRS to deploy when deployment conditions are met.
DTC B0136/74 i ...
Indicator Circuit
DESCRIPTION
This system has two indicator lights. One of the indicator lights is built
into the fold seat switch. This
indicator light receives power from the fold seat control ECU. It comes on or
blinks when the system
detects that an object is caught or when the seat operation conditions ar ...
Folding down the third seats (power seats)
You can operate the power third seats when the shift lever is in P.
Before folding the third seats
Lower the center head
restraint to the lowest position and stow the
seat belt buckles.
Stow the center seat belt.
Folding down the third seatbacks
Press the folding/returning ...
