Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Lost Communication with Brake System Control Module "A" Missing Message (U012987)

Toyota Corolla Cross (2022-2025) Service Manual / Suspension / Tire Pressure Monitoring / Tire Pressure Warning System / Lost Communication with Brake System Control Module "A" Missing Message (U012987)

DESCRIPTION

The tire pressure warning ECU and receiver receives signals from the skid control ECU (brake actuator assembly) via the CAN communication system.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

U012987

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

Lost communication with skid control ECU (brake actuator assembly)
  • CAN communication system
  • Skid control ECU (brake actuator assembly)

PROCEDURE

1.

CHECK FOR DTC

(a) Check for DTCs.

Chassis > Tire Pressure Monitor > Trouble Codes

Result

Proceed to

U012987 is output

A

DTCs are not output

B
A

GO TO CAN COMMUNICATION SYSTEM

  • for Gasoline Model: Click here
  • for HEV Model: Click here

B

USE SIMULATION METHOD TO CHECK

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