CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM (for Gasoline Model): U010087,U012287,U110487; Lost Communication With ECM/PCM "A" Missing Message; 2019 - 2021 MY Avalon [04/2018

Last Modified: 08-21-2023	6.11:8.1.0	Doc ID: RM100000001AP3J
Model Year Start: 2019	Model: Avalon	Prod Date Range: [04/2018 - 08/2021]
Title: CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM (for Gasoline Model): U010087,U012287,U110487; Lost Communication With ECM/PCM "A" Missing Message; 2019 - 2021 MY Avalon [04/2018 - 08/2021]

DTC

U010087

Lost Communication With ECM/PCM "A" Missing Message

DTC

U012287

Lost Communication with Vehicle Dynamics Control Module Missing Message

DTC

U110487

Lost Communication with Driving Support ECU Missing Message

DESCRIPTION

The ECM communicates with each sensor and ECU via CAN communication.

If any malfunction is detected in a CAN communication circuit, one or more CAN communication system DTCs are stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL
U010087	Lost Communication With ECM/PCM "A" Missing Message	While the vehicle speed is 5 km/h (3 mph) or more and the dynamic radar cruise control system is operating, the ECM continuously receives a communication cut-off signal from the skid control ECU (brake actuator assembly) for approximately 1 second or more.	CAN communication system ECM Skid control ECU (brake actuator assembly)	Does not come on
U012287	Lost Communication with Vehicle Dynamics Control Module Missing Message	When the engine switch is on (IG) and the dynamic radar cruise control system is operating, a communication error between the skid control ECU (brake actuator assembly) and ECM is detected for approximately 2.6 seconds or more.	CAN communication system ECM Skid control ECU (brake actuator assembly)	Does not come on
U110487	Lost Communication with Driving Support ECU Missing Message	While the vehicle speed is 5 km/h (3 mph) or more and the dynamic radar cruise control system is operating, a communication error between the driving support ECU assembly and ECM is detected for 1 second or more.	CAN communication system ECM Driving support ECU assembly	Does not come on

1.	CHECK FOR DTCs

(a) Clear the DTCs.

(b) Make sure that the DTC detection conditions are met.

HINT:

If the detection conditions are not met, the system cannot detect the malfunction.

Result	Proceed to
DTC U010087, U012287 and U110487 are not output	A
DTC U010087, U012287 or U110487 is output	B