CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: U0100,U0122,U0123,U0126,U1104: Lost Communication with
ECM / PCM "A"
U1104 - Lost Communication with Driving Support ECU
DESCRIPTION
The ECM communicates several signals with each sensor and ECU by CAN communication circuit.
There are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system are output.
INSPECTION PROCEDURE
PROCEDURE
1. CHECK DTC (CAN COMMUNICATION SYSTEM)
(a) Check for DTCs See: Powertrain Management/Computers and Control Systems/Information Bus/Testing and Inspection/Initial
Inspection and Diagnostic Overview/CAN Communication System/Diagnosis System
NEXT -- CHECK CAN COMMUNICATION SYSTEM See: Diagnostic Trouble Code Descriptions/CAN Communication
System
Up to 08/2009
PRE-COLLISION: PRE-COLLISION SYSTEM: U1104: Lost Communication with Driving Support ECU
U1104 - Lost Communication with Driving Support ECU
DESCRIPTION
The driving support ECU sends vehicle speed and vehicle condition information to the millimeter wave radar sensor. The millimeter wave radar
sensor then sends information on the presence, distance, and relative speed of objects ahead to the driving support ECU. The driving support ECU
sends this information to the ECM and performs cruise control.
No comments:
Post a Comment