Toyota Yaris: Lane Tracing Assist System / Lost Communication with ECM/PCM "A" Missing Message (U010087,U010187,U012687,U012987,U013187,U015587)

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Engine & Hybrid System / Cruise Control / Lane Tracing Assist System / Lost Communication with ECM/PCM "A" Missing Message (U010087,U010187,U012687,U012987,U013187,U015587)

DESCRIPTION

When a communication malfunction is detected between the forward recognition camera and an ECU or sensor, a DTC is stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

U010087

Lost Communication with ECM/PCM "A" Missing Message

When the ignition switch is ON for 3 seconds or more, a communication malfunction between the forward recognition camera and the ECM continues for approximately 2 seconds or more.

CAN communication system

U010187

Lost Communication with TCM Missing Message

When the ignition switch is ON for 3 seconds or more, a communication malfunction between the forward recognition camera and the ECM continues for approximately 8 seconds or more.

CAN communication system

U012687

Lost Communication with Steering Angle Sensor Module Missing Message

When the ignition switch is ON for 3 seconds or more, a communication malfunction between the forward recognition camera and the steering sensor continues for approximately 1 second or more.

CAN communication system

U012987

Lost Communication with Brake System Control Module Missing Message

When the ignition switch is ON for 3 seconds or more, a communication malfunction between the forward recognition camera and the skid control ECU (brake actuator assembly) continues for approximately 1 second or more.

CAN communication system

U013187

Lost Communication with Power Steering Control Module Missing Message

When the ignition switch is ON for 3 seconds or more, a communication malfunction between the forward recognition camera and the power steering ECU assembly continues for approximately 1 second or more.

CAN communication system

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 malfunction between the forward recognition camera and the combination meter assembly continues for 8 seconds or more.

CAN communication system

PROCEDURE

1.

CLEAR DTC

(a) Clear the DTCs.

Chassis > Lane Control > Clear DTCs
NEXT

2.

CHECK FOR DTCs

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

HINT:

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

(b) Using the GTS, check for DTCs.

Chassis > Lane Control > Trouble Codes

Result

Proceed to

DTC U010087, U010187, U012687, U012987, U013187 or U015587 is output

A

DTCs are not output

B

None of the above conditions are met

C

A

GO TO CAN COMMUNICATION SYSTEM

B

USE SIMULATION METHOD TO CHECK

C

GO TO DTC CHART

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