Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Lost Communication with ECM/PCM "A" Missing Message (U010087,U012687,U012987,U014087,U016387,U029387)

Toyota Corolla Cross (2022-2024) Service Manual / Audio & Visual & Telematics / Park Assist / Monitoring / Parking Assist Monitor System / Lost Communication with ECM/PCM "A" Missing Message (U010087,U012687,U012987,U014087,U016387,U029387)

DESCRIPTION

These DTCs are stored if there is a malfunction in the CAN communication system connected to the parking assist ECU.

HINT:

If CAN communication system DTCs are stored, they may also be stored in 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

for HEV Model:

Lost communication with No. 2 skid control ECU (brake actuator assembly)

for Gasoline Model:

Lost communication with skid control ECU (brake actuator assembly)

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

U016387

Lost Communication with Navigation Control Module Missing Message

Lost communication with radio and display receiver assembly

CAN communication system

U029387

Lost Communication with Hybrid/EV Powertrain Control Module Missing Message

Lost communication with hybrid vehicle control ECU

CAN communication system

PROCEDURE

1.

CLEAR DTC

(a) Clear the DTCs.

Chassis > Rear Camera > Clear DTCs
NEXT

2.

CHECK FOR DTC

(a) Check for DTCs.

Chassis > Rear Camera > Trouble Codes

HINT:

  • If CAN communication system DTCs are stored, they may also be stored in other systems.
  • If the CAN communication system has been inspected and repaired in other systems, 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 though the DTC was not output when rechecking for DTCs.

    Click here

Result

Proceed to

DTCs are not output

A

DTCs are output

B

A

USE SIMULATION METHOD TO CHECK

B

GO TO CAN COMMUNICATION SYSTEM

  • for HEV Model:

    Click here

  • for Gasoline Model:

    Click here

    READ NEXT:

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     Precaution

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    SEE MORE:

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    VEHICLE CONTROL HISTORY (RoB) HINT: The Vehicle Control History stores the history of the reject function and system protection operations. The number of occurrences, date and distance are stored in batches for each item. CHECK VEHICLE CONTROL HISTORY (CONTINUOUSLY VARIABLE TRANSAX

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