Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM10000000260SG
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 - 11/2022]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMC Made): U010087,...,U115C87; Lost Communication with ECM/PCM "A" Missing Message; 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]

DTC

U010087

Lost Communication with ECM/PCM "A" Missing Message

DTC

U010187

Lost Communication with TCM Missing Message

DTC

U012587

Lost Communication with Multi-axis Acceleration Sensor Module Missing Message

DTC

U012687

Lost Communication with Steering Angle Sensor Module Missing Message

DTC

U015187

Lost Communication with Restraints Control Module Missing Message

DTC

U115C87

Lost Communication with ECM/PCM "A" (ch5) Missing Message

DESCRIPTION

The skid control ECU (brake actuator assembly) communicates with the following ECUs and sensors via CAN communication.

  • ECM
  • TCM (ECM)
  • Yaw rate and acceleration sensor (airbag sensor assembly)
  • Steering angle sensor
  • airbag sensor assembly

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

U010087

Lost Communication with ECM/PCM "A" Missing Message

When the +BS terminal voltage is between 9.5 and 17.4 V and the vehicle speed exceeds 15 km/h (9 mph), data cannot be received from the ECM for 2 seconds or more.
  • CAN communication system
  • ECM
  • Skid control ECU (brake actuator assembly)

U010187

Lost Communication with TCM Missing Message

When the +BS terminal voltage is between 9.5 and 17.4 V and the vehicle speed exceeds 15 km/h (9 mph), data cannot be received from the TCM (ECM) for 2 seconds or more.
  • CAN communication system
  • TCM (ECM)
  • Skid control ECU (brake actuator assembly)

U012587

Lost Communication with Multi-axis Acceleration Sensor Module Missing Message

Either of the following is detected:

  • When the +BS terminal voltage is between 9.5 and 17.4 V, data from the acceleration sensor (airbag sensor assembly) cannot be received for 1 second or more.
  • When the +BS terminal voltage is between 9.5 and 17.4 V, the following occurs 10 times in succession within 60 seconds:
    • Data from the acceleration sensor (airbag sensor assembly) cannot be received once or more within 5 seconds.
  • CAN communication system
  • Acceleration sensor (airbag sensor assembly)
  • Skid control ECU (brake actuator assembly)

U012687

Lost Communication with Steering Angle Sensor Module Missing Message

Either of the following is detected:

  • When the +BS terminal voltage is between 9.5 and 17.4 V, data from the steering angle sensor cannot be received for 1 second or more.
  • When the +BS terminal voltage is between 9.5 and 17.4 V, the following occurs 10 times in succession within 60 seconds:
    • Data from the steering angle sensor cannot be received once or more within 5 seconds
  • CAN communication system
  • Steering angle sensor
  • Skid control ECU (brake actuator assembly)

U015187

Lost Communication with Restraints Control Module Missing Message

When the +BS terminal voltage is between 9.5 and 17.4 V and the vehicle speed exceeds 7 km/h (4 mph), data cannot be received from the airbag sensor assembly for 5 seconds or more.
  • CAN communication system
  • airbag sensor assembly
  • Skid control ECU (brake actuator assembly)

U115C87

Lost Communication with ECM/PCM "A" (ch5) Missing Message

Data cannot be received from the ECM for 2 seconds or more.
  • CAN communication system
  • ECM
  • Skid control ECU (brake actuator assembly)

PROCEDURE

1.

CHECK DTC OUTPUT (HEALTH CHECK)

(a) Perform the Health Check using the GTS.

Result

Proceed to

DTCs for related systems are output together with DTC U010087, U010187, U012587, U012687, U015187 or U115C87.

A

U010087, U010187, U012587, U012687, U015187 or U115C87 is output.

B

DTCs are not output.

C
A

GO TO DIAGNOSTIC TROUBLE CODE CHART (RELATED SYSTEM)
B

INSPECT CAN COMMUNICATION SYSTEM

C

USE SIMULATION METHOD TO CHECK