Dynamic Radar Cruise Control System

CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: P1615: Communication Error from Distance Control ECU to ECM

DTC P1615 - Communication Error from Distance Control ECU to ECM

DTC U1101 - Lost Communication with Distance Control ECU

DESCRIPTION

The distance control ECU receives information about the area in front of the vehicle from the millimeter wave radar sensor and then sends a brake control demand signal (deceleration demand) and diagnosis signals, such as millimeter wave radar sensor grime signals or millimeter wave radar sensor malfunction signals, to the ECM.






INSPECTION PROCEDURE
NOTE:
When the distance control ECU and/or ECM are replaced with a new one, initialization must be performed Installation.
HINT: This circuit uses CAN communication. Therefore, if there are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system are output.

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM
(a) Refer to HOW TO PROCEED WITH TROUBLESHOOTING How to Proceed With Troubleshooting.
NEXT -- END