Toyota Sienna Service Manual: Precaution
1. Handling precautions on steering system
(a) Care must be taken when replacing parts. Incorrect replacement could affect the performance of the steering system and result in a driving hazard.
2. Handling precautions on srs airbag system
(A) the vehicle is equipped with srs (supplemental restraint system) such as the driver airbag and front passenger airbag. Failure to carry out service operation in correct sequence could cause the srs to unexpectedly deploy during servicing, possibly leading to a serious accident. Before servicing (including removal or installation of parts, inspection or replacement), be sure to read the precautionary notice for the supplemental restraint system (see page rs-1).
Problem symptoms table
HINT:
Use the table below to help determine the cause of the
problem. Likely causes of the problem are indicated in
descending order. Check each suspected area in order.
Repair or replace the fa ...
Other materials:
Diagnosis system
1. CHECK DLC3
The vehicle's ECU uses ISO 15765-4 for
communication protocol. The terminal arrangement
of the DLC3 complies with SAE J1962 and matches
the ISO 15765-4 format.
NOTICE:
*: Before measuring the resistance, leave the
vehicle as is for at least 1 minute and do ...
Removal
1. REMOVE INSTRUMENT CLUSTER CENTER NO. 1 FINISH PANEL
2. REMOVE INSTRUMENT CLUSTER CENTER NO. 2
FINISH PANEL
3. REMOVE SHIFT LEVER KNOB SUB-ASSEMBLY
4. REMOVE POSITION INDICATOR HOUSING ASSEMBLY
5. REMOVE INSTRUMENT CLUSTER CENTER LOWER FINISH PANEL SUB-ASSEMBLY
6. REMOVE CIGARETTE LIGHTER CO ...
Control Module Performance
DESCRIPTION
The ECM continuously monitors its main and sub CPUs. This self-check ensures
that the ECM is
functioning properly. If outputs from the CPUs are different and deviate from
the standards, the ECM will
illuminate the MIL and set a DTC immediately.
The ECM also monitors the cru ...
