Toyota Sienna Service Manual: Lost Communication with Cruise Control Front Distance Range Sensor
DTC U0235 Lost Communication with Cruise Control Front Distance Range Sensor
DESCRIPTION
The laser sensor and distance control ECU transmit the data for general vehicle control and diagnosis function along the communication line. The laser sensor transmits information about the vehicle in front to the distance control ECU.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|
U0235 |
The ECM detects a communication error signal (from the laser sensor to the distance control ECU) for 0.15 sec. or more while the dynamic laser cruise control is in operation |
|
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
- When the distance control ECU is replaced with a new one, initialization must be performed.
- When the laser sensor is replaced with a new one, adjustment of the laser sensor beam axis must be performed
1 CHECK HARNESS AND CONNECTOR (DISTANCE CONTROL ECU - LASER SENSOR)
- Disconnect the D2 distance control ECU connector and L1 laser sensor connector.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
2 CHECK DISTANCE CONTROL ECU
- Reconnect the D2 distance control ECU connector.
- Measure the voltage according to the value(s) in the table below.
Standard voltage
- Reconnect the L1 laser sensor connector
3 CHECK DTC OUTPUT
- Clear the DTCs.
- Turn the ignition switch to the ON position.
- Check if the same DTC is recorded
Result
END (INTERMITTENT PROBLEM IS PRESENT)
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This screen is used for guidance for voice command systems
setting.
Adjust the voice guidance volume
setting.
Set the voice recognition
prompts “High”, “Low” or “Off”.
Set the train voice recognition.
Set the voice prompt interrupt
on/off.
Set the voice recognition ...
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Installing the second outside seats
Align the marking on the seat side cover to the marking on the
rail cover and align the marking on the seat front/back cover to
the rail.
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Ottoman seat
Lower the seat and engage the latches.
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Air-fuel ratio (a/f) and heated oxygen (ho2)
sensor heater monitors (front a/f and rear ho2 sensor
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(a) Preconditions
The monitor will not run unless:
The MIL is OFF.
(b) Drive Pattern
(1) Connect an intelligent tester to the DLC3.
(2) Turn the ignition switch to the ON position.
(3) Clear the DTCs.
(4) Start the engine.
(5) Allow the engine to idle for 10 minutes or more.
...