Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001YNVJ
Model Year Start: 2022 Model: Avalon Prod Date Range: [08/2021 -           ]
Title: CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM (for Gasoline Model): U010087,U010487,U012287; Lost Communication With ECM/PCM "A" Missing Message; 2022 MY Avalon [08/2021 -        ]

DTC

U010087

Lost Communication With ECM/PCM "A" Missing Message

DTC

U010487

Lost Communication with Cruise Control Module Missing Message

DTC

U012287

Lost Communication with Vehicle Dynamics Control Module 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

DTC Output from

U010087

Lost Communication With ECM/PCM "A" Missing Message

When the dynamic radar cruise control system is operating, a communication malfunction between the skid control ECU (brake actuator assembly) and ECM is detected for approximately 1 second or more.

CAN communication system

Does not come on

Radar Cruise1

U010487

Lost Communication with Cruise Control Module Missing Message

When the engine switch is on (IG) and the dynamic radar cruise control system is operating, a communication malfunction between the forward recognition camera and ECM is detected for approximately 1 second or more.

CAN communication system

Does not come on

Radar Cruise1

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 malfunction between the skid control ECU (brake actuator assembly) and ECM is detected for approximately 3 seconds or more.

CAN communication system

Does not come on

Radar Cruise1

PROCEDURE

1.

CHECK FOR DTCs (Radar Cruise1)

(a) Clear the DTCs.

Powertrain > Radar Cruise1 > Clear 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.

(c) Check for DTCs.

Powertrain > Radar Cruise1 > Trouble Codes

Result

Proceed to

CAN communication system DTC is not output

A

CAN communication system DTC is output

B

A

USE SIMULATION METHOD TO CHECK

B

GO TO CAN COMMUNICATION SYSTEM