U0235

CRUISE CONTROL: DYNAMIC LASER CRUISE CONTROL SYSTEM: U0235: Lost Communication with Cruise Control Front Distance Range Sensor
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. Not reconnect the laser sensor connector.





(b) Turn the ignition switch on (IG).

(c) Measure the voltage according to the value(s) in the table below.

Standard voltage:





NG -- REPLACE DISTANCE CONTROL ECU Removal
OK -- Continue to next step.

3. REPLACE LASER SENSOR

(a) Replace the laser sensor Removal.

(b) Adjust the laser sensor Adjustments.

NEXT -- Continue to next step.

4. CHECK DTC (DYNAMIC LASER CRUISE CONTROL SYSTEM)

(a) Clear the DTC Dynamic Laser Cruise Control System.

(b) Drive the vehicle.

(c) Recheck for DTCs Dynamic Laser Cruise Control System.

OK:

DTC is not output.

NG -- REPLACE DISTANCE CONTROL ECU Removal

OK -- CHECK FOR INTERMITTENT PROBLEMS