Toyota RAV4 manuals

Toyota Sienna Service Manual: Lost Communication with Cruise Control Front Distance Range Sensor

Toyota Sienna Service Manual / Cruise control / Dynamic laser cruise control system / Diagnostic trouble code chart / 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
  • Communication circuit
  •  Laser sensor
  •  Distance control ECU

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

1 CHECK HARNESS AND CONNECTOR (DISTANCE CONTROL ECU - LASER SENSOR)

 CHECK HARNESS AND CONNECTOR (DISTANCE CONTROL ECU - LASER SENSOR)

  1. Disconnect the D2 distance control ECU connector and L1 laser sensor connector.
  2.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

2 CHECK DISTANCE CONTROL ECU

CHECK DISTANCE CONTROL ECU

  1. Reconnect the D2 distance control ECU connector.
  2. Measure the voltage according to the value(s) in the table below.

Standard voltage

Standard voltage

  1. Reconnect the L1 laser sensor connector

3 CHECK DTC OUTPUT

  1. Clear the DTCs.
  2.  Turn the ignition switch to the ON position.
  3.  Check if the same DTC is recorded

Result

Result

END (INTERMITTENT PROBLEM IS PRESENT)

Lost Communication with Steering Angle Sensor Module
DTC U0126 Lost Communication with Steering Angle Sensor Module DESCRIPTION This circuit detects the angle and direction of the steering wheel and automatically transmits a signal to the skid con ...

Lost Communication with Radar Sensor
DTC U1102 Lost Communication with Radar Sensor DESCRIPTION The laser sensor and distance control ECU transmit the data for general vehicle control and diagnosis function along the communication l ...

Other materials:

Diagnostic trouble code chart
1. DTCS FOR AIRBAG SYSTEM If a malfunction code is displayed during the DTC check, check the circuit listed for the code in the table below (Proceed to the page listed for that circuit). HINT:  When the SRS warning light remains on and the DTC output is the normal system code, a volta ...

Data list / active test
1. DATA LIST HINT: Using the DATA LIST displayed on the intelligent tester, you can read the value of the switch, sensor, actuator, etc. without parts removal. Reading the DATA LIST as the first step of troubleshooting is one way to shorten the labor time.  Connect the intelligent tes ...

Clearance Warning ECU Power Source Circuit
DESCRIPTION This circuit provides power to the clearance warning ECU. WIRING DIAGRAM INSPECTION PROCEDURE 1 CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - AIR CONDITIONER AMPLIFIER) Disconnect the connectors from the clearance warning ECU C9 and air conditioner amplifier con ...

В© 2011-2019 Copyright www.tsienna.net