Toyota Sienna Service Manual: Dynamic laser cruise control system
- Precaution
- System description
- How to proceed with troubleshooting
- Road test
- Operation check
- Problem symptoms table
- Terminals of ECU
- Diagnosis system
- DTC check / clear
- Fail-safe chart
- Data list / active test
- Diagnostic trouble code chart
TC and CG Terminal Circuit
DESCRIPTION
Connecting terminals TC and CG of the DLC3 causes the system to enter the
self-diagnostic mode. If a
malfunction is present, DTCs will be output.
HINT:
When a particular warning li ...
Precaution
Keep in mind the following points when inspecting the
dynamic laser cruise control system.
As there is a limitation on the vehicle-to-vehicle distance
controlling capability, do not overl ...
Other materials:
Vehicle Speed Sensor "A"
DESCRIPTION
The speed sensor detects the wheel speed and sends the appropriate signals to
the skid control ECU.
The skid control ECU converts these wheel speed signals into a 4-pulse signal
and outputs it to the ECM
via the combination meter. The ECM determines the vehicle speed based o ...
Warning Buzzer Malfunction
DTC P1575 Warning Buzzer Malfunction
DESCRIPTION
The ABS & traction actuator (skid control ECU) receives an alarm demand
signal from the ECM and
operates the skid control buzzer. The buzzer sounds to warn that the distance
between the vehicle in front
and your own vehicle is decreasing.
...
VSC Warning Light does not Come ON
DESCRIPTION
The skid control ECU is connected to the combination meter via CAN and
multiplex communications.
If the skid control ECU stores DTCs to shut down TRAC and VSC operation, the VSC
warning light comes
on in the combination meter.
WIRING DIAGRAM
Refer to VSC Warning Light Remains ...
