Toyota Sienna Service Manual: Terminals of ECU
1. RADIO AND NAVIGATION ASSEMBLY
*1: with Rear Seat Entertainment System
- Reference: waveform 1
HINT:
- Terminal: VV+ - VV-
- Gauge set: 200 mV/DIV, 10 μs/DIV
- Condition: DVD is played on radio and navigation assembly
- Reference: waveform 2
HINT:
- Terminal: V+ - CGND
- Gauge set: 0.2 V/DIV, 0.2μs/DIV
- Condition: Ignition switch: ON, shift lever: R position
2. STEREO COMPONENT AMPLIFIER
3. TELEVISION DISPLAY ASSEMBLY
Problem symptoms table
HINT:
Before inspecting the suspected areas listed in the table
below, check the fuse and relay.
Before inspecting the suspected areas listed in the table
below, check the DTCs.
...
DTC check / clear
HINT:
Illustrations may differ from the actual vehicle depending
on the device settings and options. Therefore, some
detailed areas may not be shown exactly the same as on
the actual v ...
Other materials:
Data list / active test
HINT:
By accessing the DATA LIST displayed on the intelligent
tester, you can perform such functions as reading the values
of switches and sensors without removing any parts. Reading
the DATA LIST as the first step in troubleshooting is one
method to shorten labor time.
1. DATA LIST FOR CENTER ...
Reassembly
1. INSTALL RACK STEERING PISTON RING
(a) Coat a new O-ring with power steering fluid and
install it onto the power steering rack.
(b) Expand a new rack steering piston ring with your
fingers.
NOTICE:
Be careful not to over expand the rack steering
piston ring.
(c) Coat a new rack steer ...
Throttle Actuator Control System
DESCRIPTION
The throttle actuator is operated by the ECM, and opens and closes the
throttle valve using the gears.
The opening angle of the throttle valve is detected by the Throttle Position
(TP) sensor, which is mounted
on the throttle body. The TP sensor provides feedback to the ECM ...
