Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Lost Communication with ECM/PCM "A" Missing Message (U010087,U012687,U012987,U014087,U029387,U111087)

Toyota Corolla Cross (2022-2024) Service Manual / Audio & Visual & Telematics / Park Assist / Monitoring / Blind Spot Monitor System / Lost Communication with ECM/PCM "A" Missing Message (U010087,U012687,U012987,U014087,U029387,U111087)

DESCRIPTION

These DTCs are stored if there is a malfunction in the CAN communication system connected to the blind spot monitor sensor.

HINT:

If CAN communication system DTCs are stored, they may also be stored for other systems.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

U010087

Lost Communication with ECM/PCM "A" Missing Message

Lost communication with ECM

CAN communication system

U012687

Lost Communication with Steering Angle Sensor Module Missing Message

Lost communication with steering sensor

CAN communication system

U012987

Lost Communication with Brake System Control Module "A" Missing Message

Lost communication with skid control ECU

CAN communication system

U014087

Lost Communication with Body Control Module Missing Message

Lost communication with main body ECU (multiplex network body ECU)

CAN communication system

U029387

Lost Communication with Hybrid/EV Powertrain Control Module Missing Message

Lost communication with hybrid vehicle control ECU

CAN communication system

U111087

Lost Communication with Clearance Sonar Module Missing Message

Lost communication with clearance warning ECU assembly

CAN communication system

CAUTION / NOTICE / HINT

NOTICE:

When checking for DTCs, make sure that the blind spot monitor system is turned on.

PROCEDURE

1.

CHECK DTC

(a) Turn the ignition switch off.

(b) Turn the ignition switch to ON.

(c) Recheck for DTCs and check if the same DTC is output again.

Body Electrical > Blind Spot Monitor "B" > Trouble Codes

Result

Proceed to

U023287 is output

A

U010087, U012687, U012987, U014087, U029387 or U111087 is output

B

DTCs are not output

C

None of the above conditions are met

D

HINT:

  • If CAN communication system DTCs are stored, they may also be stored for other systems.
  • If the CAN communication system has been inspected and repaired, the DTCs will not be output when rechecking for DTCs.
  • If these DTCs are output frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again, even if the DTCs were not output when rechecking for DTCs.

    Click here

A

GO TO DTC U023287

B

GO TO CAN COMMUNICATION SYSTEM

  • for HEV Model:

    Click here

  • for Gasoline Model:

    Click here

C

USE SIMULATION METHOD TO CHECK

D

GO TO DIAGNOSTIC TROUBLE CODE CHART

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