Toyota Camry owners & service manuals

Toyota Camry (XV70): Lost Communication With ECM/PCM "A" Missing Message (U010087,U012587,U012687,U012987,U015587,U110687)

Toyota Camry Repair Manual XV70 (2018-2024) / Engine, Hybrid System / Cruise Control / Dynamic Radar Cruise Control System / Lost Communication With ECM/PCM "A" Missing Message (U010087,U012587,U012687,U012987,U015587,U110687)

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

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

Radar Cruise2

U012587

Lost Communication with Multi-axis Acceleration Sensor Module Missing Message

When the vehicle speed is 1 km/h (1 mph) or more, a communication error between the forward recognition camera and airbag sensor assembly continues for 5 seconds or more.

CAN communication system

Radar Cruise2

U012687

Lost Communication with Steering Angle Sensor Module Missing Message

When the ignition switch is ON for 3 seconds or more, a communication error between the forward recognition camera and steering sensor continues for 5 seconds or more.

CAN communication system

Radar Cruise2

U012987

Lost Communication with Brake System Control Module Missing Message

When the ignition switch is ON for 3 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

Radar Cruise2

U015587

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

When the ignition switch is ON for 3 seconds or more, a communication error between the forward recognition camera and combination meter assembly continues for 5 seconds or more.

CAN communication system

Radar Cruise2

U110687

Lost Communication with Electric Parking Brake Module Missing Message

When the ignition switch is ON for 3 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

Radar Cruise2

PROCEDURE

1.

CHECK FOR DTCs (Radar Cruise2)

(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.

(c) Check for DTCs.

Powertrain > Radar Cruise2 > 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

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