U0235

CRUISE CONTROL: DYNAMIC LASER CRUISE CONTROL SYSTEM: U0235: 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.






WIRING DIAGRAM





INSPECTION PROCEDURE
NOTICE:
- When the distance control ECU is replaced with a new one, initialization must be performed Installation.
- When the laser sensor is replaced with a new one, adjustment of the laser sensor beam axis must be performed Adjustments.

PROCEDURE

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





(a) Disconnect the distance control ECU and laser sensor connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
2. CHECK DISTANCE CONTROL ECU





(a) Reconnect the distance control ECU connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:





(c) Reconnect the laser sensor connector.
NG -- REPLACE DISTANCE CONTROL ECU
OK -- Continue to next step.
3. CHECK DTC OUTPUT
(a) Clear the DTCs Dynamic Laser Cruise Control System.
(b) Turn the ignition switch to the ON position.
(c) Check if the same DTC is recorded Dynamic Laser Cruise Control System.

Result





B -- REPLACE LASER SENSOR
A -- END (INTERMITTENT PROBLEM IS PRESENT)