Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000012SYW
Model Year Start: 2018 Model: Camry Prod Date Range: [03/2017 - 06/2017]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: U0073,U0100,U0123,U0126,U0151; Control Module Communication Bus OFF; 2018 MY Camry [03/2017 - 06/2017]

DTC

U0073

Control Module Communication Bus OFF

DTC

U0100

Lost Communication with ECM / PCM

DTC

U0123

Lost Communication with Yaw Rate Sensor Module

DTC

U0126

Lost Communication with Steering Angle Sensor Module

DTC

U0151

Lost Communication with Airbag ECU

DESCRIPTION

The skid control ECU (brake actuator assembly) receives signals from the ECM, steering angle sensor, yaw rate and acceleration sensor (airbag sensor assembly) and airbag sensor assembly via CAN communication.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

U0073

Control Module Communication Bus OFF

The +BS terminal voltage is between 9.6 and a 16.5 V and a bus OFF state occurs for 0.1 seconds or more.

CAN communication system

U0100

Lost Communication with ECM / PCM

The +BS terminal voltage is between 9.6 and 16.5 V, the vehicle speed is 6 km/h (4 mph) or more, and signals cannot be sent to the ECM for 2 seconds or more.
  • CAN communication system
  • Skid control ECU (brake actuator assembly)
  • ECM

U0123

Lost Communication with Yaw Rate Sensor Module

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

U0126

Lost Communication with Steering Angle Sensor Module

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

U0151

Lost Communication with Airbag ECU

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

PROCEDURE

1.

CHECK DTC OUTPUT (HEALTH CHECK)

(a) Clear the DTCs.

Chassis > ABS/VSC/TRAC > Clear DTCs

(b) Turn the ignition switch off.

(c) Turn the ignition switch to ON.

(d) Enter the following menus: System Select / Health Check.

(e) Check for DTCs.

Result

Proceed to

DTCs for related systems are output together with DTC U0073, U0100, U0123, U0126 or U0151.

A

U0073, U0100, U0123, U0126 or U0151 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