CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM (for M20A-FKS): U010087,U012587,U012687,U012987,U015587,U110687; Lost Communication with ECM/PCM "A" Missing Message; 2019 MY Corolla Corolla Hatchback [06/2018

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM100000001CUPJ
Model Year Start: 2019	Model: Corolla Hatchback	Prod Date Range: [06/2018 - 01/2019]
Title: CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM (for M20A-FKS): U010087,U012587,U012687,U012987,U015587,U110687; Lost Communication with ECM/PCM "A" Missing Message; 2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]

DTC

U010087

Lost Communication with ECM/PCM "A" Missing Message

DTC

U012587

Lost Communication with Multi-axis Acceleration Sensor Module Missing Message

DTC

U012687

Lost Communication with Steering Angle Sensor Module Missing Message

DTC

U012987

Lost Communication with Brake System Control Module Missing Message

DTC

U015587

Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message

DTC

U110687

Lost Communication with Electric Parking Brake Module Missing Message

DESCRIPTION

The forward recognition camera 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 ECM and forward recognition camera is detected for 5 seconds or more.	CAN communication system ECM Forward recognition camera	Does not come on	Forward recognition camera
U012587	Lost Communication with Multi-axis Acceleration Sensor Module Missing Message	When the vehicle speed is 1 km/h or more, a communication error between the forward recognition camera and yaw rate and acceleration sensor (airbag sensor assembly) continues for 5 seconds or more.	CAN communication system Yaw rate and acceleration sensor (Airbag sensor assembly) Forward recognition camera	Does not come on	Forward recognition camera
U012687	Lost Communication with Steering Angle Sensor Module Missing Message	When the engine switch is on (IG) for 2 seconds or more, a communication error between the forward recognition camera and steering sensor continues for 5 seconds or more.	CAN communication system Steering sensor Forward recognition camera	Does not come on	Forward recognition camera
U012987	Lost Communication with Brake System Control Module Missing Message	When the engine switch is on (IG) for 2 seconds or more, a communication error between the forward recognition camera and skid control ECU (brake actuator assembly) continues for 5 seconds or more.	CAN communication system Skid control ECU (Brake actuator assembly) Forward recognition camera	Does not come on	Forward recognition camera
U015587	Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message	When the engine switch is on (IG) for 2 seconds or more, a communication error between the forward recognition camera and combination meter assembly continues for 50 seconds or more.	CAN communication system Combination meter assembly Forward recognition camera	Does not come on	Forward recognition camera
U110687	Lost Communication with Electric Parking Brake Module Missing Message	When the engine switch is on (IG) for 2 seconds or more, a communication error between the forward recognition camera and skid control ECU (brake actuator assembly) continues for 5 seconds or more.	CAN communication system Skid control ECU (Brake actuator assembly) Forward recognition camera	Does not come on	Forward recognition camera

PROCEDURE

1.	CHECK FOR DTCs

(a) Clear the DTCs.

Powertrain > Radar Cruise2 > 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.

Powertrain > Radar Cruise2 > Trouble Codes

Result	Proceed to
DTC U010087, U012587, U012687, U012987, U015587 and U110687 are not output	A
DTC U010087, U012587, U012687, U012987, U015587 or U110687 is output	B

USE SIMULATION METHOD TO CHECK

GO TO CAN COMMUNICATION SYSTEM