Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000025DV0
Model Year Start: 2023 Model: Corolla Prod Date Range: [09/2022 -           ]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): U010187,...,U115087; Lost Communication with TCM Missing Message; 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]

DTC

U010187

Lost Communication with TCM Missing Message

DTC

U012500

Lost Communication with Multi-axis Acceleration Sensor Module "A" (2WD) 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

U013187

Lost Communication With Power Steering Control Module Missing Message

DTC

U014087

Lost Communication with Body Control Module Missing Message

DTC

U015187

Lost Communication with Restraints Control Module Missing Message

DTC

U029387

Lost Communication with Hybrid/EV Powertrain Control Module Missing Message

DTC

U115087

Lost Communication with Hybrid Powertrain Control Module (ch2) Missing Message

DESCRIPTION

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

  • ECM
  • TCM
  • Yaw rate and acceleration sensor (airbag sensor assembly)
  • Steering angle sensor
  • Power steering ECU assembly
  • Main body ECU (multiplex network body ECU)
  • Airbag sensor assembly
  • Hybrid vehicle control ECU

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

DTC Output from

Note

U010187

Lost Communication with TCM Missing Message

When the +BS terminal voltage is between 9.6 and 16.5 V, data from the TCM cannot be received for 2 seconds or more.
  • CAN communication system
  • TCM
  • Skid control ECU (brake actuator assembly)

Does not come on

Brake/EPB

Output ECU: Skid control ECU (brake actuator assembly)

U012500

Lost Communication with Multi-axis Acceleration Sensor Module "A" (2WD) Missing Message

When the +BS terminal voltage is between 9.6 and 16.5 V, the vehicle speed is 6 km/h (4 mph) or more, data from the yaw rate and acceleration sensor (airbag sensor assembly) cannot be received for 1 second or more.
  • CAN communication system
  • Yaw rate and acceleration sensor (airbag sensor assembly)
  • Skid control ECU (brake actuator assembly)

Does not come on

Brake/EPB
  • Output ECU: Skid control ECU (brake actuator assembly)
  • for 2WD

U012587

Lost Communication With Multi-axis Acceleration Sensor Module Missing Message

When the +BS terminal voltage is between 9.6 and 16.5 V, the vehicle speed is 6 km/h (4 mph) or more, data from the yaw rate and acceleration sensor (airbag sensor assembly) cannot be received for 1 second or more.
  • CAN communication system
  • Yaw rate and acceleration sensor (airbag sensor assembly)
  • Skid control ECU (brake actuator assembly)

Comes on

Brake/EPB
  • SAE Code: U0125
  • Output ECU: Skid control ECU (brake actuator assembly)
  • for AWD

U012687

Lost Communication with Steering Angle Sensor Module Missing Message

When the +BS terminal voltage is between 9.6 and 16.5 V, the vehicle speed is 6 km/h (4 mph) or more, data from the steering angle sensor cannot be received for 1 second or more.
  • CAN communication system
  • Steering angle sensor
  • Skid control ECU (brake actuator assembly)

Does not come on

Brake/EPB

Output ECU: Skid control ECU (brake actuator assembly)

U013187

Lost Communication With Power Steering Control Module Missing Message

When the +BS terminal voltage is between 9.6 and 16.5 V, the vehicle speed is 6 km/h (4 mph) or more, data from the power steering ECU assembly cannot be received for 2 seconds or more.
  • CAN communication system
  • Power steering ECU assembly
  • Skid control ECU (brake actuator assembly)

Does not come on

Brake/EPB

Output ECU: Skid control ECU (brake actuator assembly)

U014087

Lost Communication with Body Control Module Missing Message

When the +BS terminal voltage is between 9.6 and 16.5 V, the vehicle speed is 6 km/h (4 mph) or more, data from the main body ECU (multiplex network body ECU) cannot be received for 2 seconds or more.
  • CAN communication system
  • Main body ECU (multiplex network body ECU)
  • Skid control ECU (brake actuator assembly)

Does not come on

Brake/EPB

Output ECU: Skid control ECU (brake actuator assembly)

U015187

Lost Communication with Restraints Control Module Missing Message

When the +BS terminal voltage is between 9.6 and 16.5 V, the vehicle speed is 6 km/h (4 mph) or more, data from the airbag sensor assembly cannot be received for 5 seconds or more.
  • CAN communication system
  • Airbag sensor assembly
  • Skid control ECU (brake actuator assembly)

Does not come on

Brake/EPB

Output ECU: Skid control ECU (brake actuator assembly)

U029387

Lost Communication with Hybrid/EV Powertrain Control Module Missing Message

When the IG terminal voltage is 10 V or more, data from the hybrid vehicle control ECU cannot be received for 2 seconds or more.
  • CAN communication system
  • Hybrid vehicle control ECU
  • Skid control ECU (brake actuator assembly)

Comes on

Brake/EPB
  • SAE Code: U0293 (Case 1, 2 and 3)
  • Output ECU: Skid control ECU (brake actuator assembly)

U115087

Lost Communication with Hybrid Powertrain Control Module (ch2) Missing Message

When the IG terminal voltage is 10 V or more, data from the hybrid vehicle control ECU cannot be received for 2 seconds or more.
  • CAN communication system
  • Hybrid vehicle control ECU
  • Skid control ECU (brake actuator assembly)

Comes on

Brake/EPB
  • SAE Code: U1150 (Case 1 and 2)
  • Output ECU: Skid control ECU (brake actuator assembly)

MONITOR DESCRIPTION

U0125:

  • When the drive method is AWD, 3 seconds or more have elapsed after the ignition switch is turned to ON, the power supply voltage of the skid control ECU (brake actuator assembly) is a certain value or more, and data is not able to be received from the yaw rate and acceleration sensor (airbag sensor assembly) for a certain amount of time, the skid control ECU (brake actuator assembly) illuminates the MIL and stores this DTC.

U0293 (Case 1, 2 and 3) and U1150 (Case 1 and 2):

  • When 3 seconds or more have elapsed after the ignition switch is turned to ON, the power supply voltage of the skid control ECU (brake actuator assembly) is a certain value or more, and data is not able to be received from the hybrid vehicle control ECU for a certain amount of time, the skid control ECU (brake actuator assembly) illuminates the MIL and stores this DTC.

MONITOR STRATEGY

Related DTCs

U0125: Communication failure with G sensor

U0293 (Case 1): CAN communication failure for C1 IGR (transmit from hybrid vehicle control ECU)

U0293 (Case 2): CAN communication failure for C1 IGP (transmit from hybrid vehicle control ECU)

U0293 (Case 3): CAN communication failure for C1 IGP (Transmit from EHV ECU)

U1150 (Case 1): CAN communication failure for PL IGR (transmit from hybrid vehicle control ECU)

U1150 (Case 2): CAN communication failure for PL IGR (transmit from hybrid vehicle control ECU)

Required Sensors/Components(Main)

Skid control ECU (brake actuator assembly)

Required Sensors/Components(Related)

Skid control ECU (brake actuator assembly)

Frequency of Operation

Continuous

Duration

1 second: U0125

2 seconds: U0293 (Case 1 to 3) and U1150 (Case 1 and 2)

MIL Operation

Immediately: U1150 (Case 1 and 2)

2 driving cycles: U0125 and U0293 (Case 1 to 3)

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

Monitor runs whenever the following DTCs are not stored

TMC's intellectual property

Other conditions belong to TMC's intellectual property

-

TYPICAL MALFUNCTION THRESHOLDS

TMC's intellectual property

-

COMPONENT OPERATING RANGE

TMC's intellectual property

-

CONFIRMATION DRIVING PATTERN

NOTICE:

When performing the normal judgment procedure, make sure that the driver door is closed and is not opened at any time during the procedure.

HINT:

  • After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
  • When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
  1. Connect the GTS to the DLC3.
  2. Turn the ignition switch to ON and turn the GTS on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the ignition switch off.
  5. Turn the ignition switch to ON (READY) and turn the GTS on.
  6. Wait for 2 seconds or more. [*]

    HINT:

    [*]: Normal judgment procedure.

    The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

  7. Enter the following menus: Chassis / Brake/EPB* / Utility / All Readiness.

    *: Electric Parking Brake System

  8. Check the DTC judgment result.

    HINT:

    • If the judgment result shows NORMAL, the system is normal.
    • If the judgment result shows ABNORMAL, the system has a malfunction.
    • If the judgment result shows INCOMPLETE, perform driving pattern again.

PROCEDURE

1.

CLEAR DTC

(a) Clear the DTCs.

Chassis > Brake/EPB > Clear DTCs

(b) Turn the ignition switch off.

NEXT

2.

CHECK DTC OUTPUT (HEALTH CHECK)

(a) Using the GTS to operate the Health Check.

(b) Check for DTCs.

Result

Proceed to

DTCs for related systems are output together with DTC U010187, U012500*1, U012587*2, U012687, U013187, U014087, U015187, U029387 or U115087.

A

U010187, U012500*1, U012587*2, U012687, U013187, U014087, U015187, U029387 or U115087 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