A large number of ECU controlled systems are used in the SIENNA. In general, ECU controlled systems are considered to be very intricate, requiring a high level of technical knowledge to troubleshoot. However, most problem checking procedures only involve inspecting the ECU controlled system's circuits one by one. An adequate understanding of the system and a basic knowledge of electricity is enough to perform effective troubleshooting, accurate diagnoses and necessary repairs.
FOR USING INTELLIGENT TESTER
(1)If communication is normal when the tester is connected to another vehicle, inspect the diagnosis data link line (Bus (+) line) or ECU power circuit of the vehicle.
(2)If communication is still not possible when the tester is connected to another vehicle, the problem is probably in the tester itself. Perform the Self Test procedures outlined in the tester operator's manual.
Reassembly
1. INSTALL REAR WHEEL CYLINDER CUP KIT
(a) Temporarily tighten the bleeder plug to the wheel
cylinder, and install the bleeder plug cap.
(b) Apply lithium soap base glycol grease to the 2 new
wheel cylinder cups and the 2 pistons.
(c) Install the 2 wheel cylinder cups to each piston.
...
No. 1 Speaker with box
COMPONENTS
ON-VEHICLE INSPECTION
1. INSPECT NO.1 SPEAKER WITH BOX
HINT:
Remove interior parts so that the No.1 speaker with box
can be seen.
Check the speaker installation.
OK:
The speaker is securely installed.
If the result is not as specified, reinstall the No.1
s ...
Driving style analysis
Concept
The function helps develop an especially efficient
driving style and to conserve fuel.
For this purpose, the driving style is analyzed.
The assessment is done in various categories
and is displayed on the Control Display.
This display will help you adjust your driving style
and save some ...