Toyota Sienna Service Manual: Precaution
1. SRS AIRBAG SYSTEM HANDLING PRECAUTIONS
- This vehicle is equipped with an SRS (Supplemental Restraint System) such as the driver airbag and front passenger airbag. Failure to carry out service operations in the correct sequence could cause unexpected SRS deployment during servicing and may lead to a serious accident. Before servicing (including installation / removal, inspection and replacement of parts), be sure to read the precautionary notice for the Supplemental Restraint System (See page RS-1).
2. WIRE HARNESS REPAIR
- After repairing wire harness, wrap the repaired part with a vinyl tape.
NOTICE:
- The CANL wire harness and CANH wire harness must be installed together all the time. When installing, make sure to twist them.
- The difference in the length of the CANL wire harness and CANH wire harness should be within 100 mm (3.937 in.).
- Do not perform the bypass wiring between the connectors.
NOTICE: If you perform the bypass wiring, the characteristic of the twisted wire harness will be lost.
3. CONNECTOR HANDLING
- When inserting tester probes into a connector, insert them from the rear of the connector.
- If it is impossible to check resistance from the back of the connector, use a repair wire to check it.
Parts location
SYSTEM DIAGRAM
...
Other materials:
Removal
1. Remove no. 2 Air cleaner inlet (see page em-
28)
2. Remove air cleaner cap sub-assembly
(a) Disconnect the 3 vacuum hoses.
(b) Loosen the bolt, disconnect the 2 connectors, and
remove the 2 vacuum hoses.
(c) Remove the 2 bolts, air cleaner cap sub-assembly,
and air cleaner filt ...
How to proceed with
troubleshooting
HINT:
Troubleshoot in accordance with the procedures on the
following pages
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK
3 INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX
COMMUNICATION SYSTEM (BEAN)
Use the intelligent tester to check for normal ...
Throttle Actuator Control Throttle Body Range / Performance
DESCRIPTION
The Electronic Throttle Control System (ETCS) is composed of the throttle
actuator, Throttle Position (TP)
sensor, Accelerator Pedal Position (APP) sensor, and ECM. The ECM operates the
throttle actuator to
regulate the throttle valve in response to driver inputs. The TP senso ...