Toyota Sienna Service Manual: Removal
1. PRECAUTION
CAUTION: Be sure to read "PRECAUTION" thoroughly before servicing.
2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION: Wait for 90 seconds after disconnecting the cable to prevent the airbag working.
3. REMOVE STEERING WHEEL NO.3 COVER LOWER
- Using a screwdriver, remove the steering wheel No.3 cover lower.
HINT: Tape up the screwdriver tip before use.
4. REMOVE STEERING WHEEL NO.2 COVER LOWER
- Using a screwdriver, remove the steering wheel No.2 cover lower.
HINT: Tape up the screwdriver tip before use.
5. REMOVE STEERING PAD
- Using a "torx" socket wrench (T30), loosen the 2 "torx" screws until the groove along the screw circumference catches on the screw case.
- Pull out the steering pad from the steering wheel
assembly and support the steering pad with one
hand as shown in the illustration.
NOTICE: When removing the steering pad, do not pull the airbag wire harness.
- Disconnect the horn connector.
- Disconnect the 2 connectors from the steering pad.
NOTICE: When handling the airbag connector, take care not to damage the airbag wire harness.
- Remove the steering pad.
On-vehicle inspection
1. INSPECT STEERING PAD (VEHICLE NOT INVOLVED IN COLLISION)
Perform a diagnostic system check.
With the steering pad installed on the vehicle,
perform a visual check. If there are any defe ...
Installation
1. INSTALL STEERING PAD
Support the steering pad with one hand as shown in
the illustration.
Connect the 2 connectors to the steering pad.
NOTICE:
When handling the airba ...
Other materials:
Back Sonar Sensor LH Circuit
DESCRIPTION
An ultrasonic sensor consists of a sensor portion that transmits and receives
ultrasonic waves and a preamplifier
that amplifies them. The ultrasonic sensor outputs the ultrasonic waves and
sends the received
signals to the clearance warning ECU.
WIRING DIAGRAM
INSPECTION PR ...
Television Display Power Source Circuit
DESCRIPTION
This is the power source circuit to operate the television display assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT TELEVISION DISPLAY ASSEMBLY
Disconnect the connector from the television display
assembly.
Measure the resistance according to the value(s) ...
Rear Airbag Sensor RH Circuit Malfunction
DTC B1154/38 Rear Airbag Sensor RH Circuit Malfunction
DESCRIPTION
The rear airbag sensor RH circuit consists of the center airbag sensor
assembly and rear airbag sensor
RH.
If the center airbag sensor assembly receives signals from the rear airbag
sensor RH, it judges whether or
not the ...
