Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000014W7X
Model Year Start: 2018 Model: Camry HV Prod Date Range: [07/2017 - 10/2020]
Title: CRUISE CONTROL: LANE DEPARTURE ALERT SYSTEM (w/ Steering Control): U0123,U0126,U0129,U0131,U0142,U0155,U0293; Lost Communication with Yaw Rate Sensor Module; 2018 - 2020 MY Camry HV [07/2017 - 10/2020]

DTC

U0123

Lost Communication with Yaw Rate Sensor Module

DTC

U0126

Lost Communication with Steering Angle Sensor Module

DTC

U0129

Lost Communication with Brake System Control Module

DTC

U0131

Lost Communication with Power Steering Control Module

DTC

U0142

Lost Communication with Body Control Module "B"

DTC

U0155

Lost Communication with Instrument Panel Cluster (IPC) Control Module (Combination Meter)

DTC

U0293

Lost Communication with Hybrid Vehicle Control System

DESCRIPTION

When a malfunction is detected between various ECUs and sensors, these DTCs are stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

U0123

Lost Communication with Yaw Rate Sensor Module

After the power switch is turned on (IG) for 3 seconds or more, when the vehicle is being driven at a speed of 5 km/h (4 mph) or more, a communication error between the yaw rate sensor (airbag sensor assembly) and forward recognition camera is detected for approximately 5 seconds or more.
  • CAN communication system
  • Yaw rate sensor (Airbag sensor assembly)
  • Forward recognition camera

U0126

Lost Communication with Steering Angle Sensor Module

After the power switch is turned on (IG) for 3 seconds or more, a communication error between the steering sensor and forward recognition camera is detected for approximately 5 seconds or more.
  • CAN communication system
  • Steering sensor
  • Forward recognition camera

U0129

Lost Communication with Brake System Control Module

After the power switch is turned on (IG) for 3 seconds or more, a communication error between the skid control ECU (brake booster with master cylinder assembly) and forward recognition camera is detected for approximately 5 seconds or more.
  • CAN communication system
  • Skid control ECU (Brake booster with master cylinder assembly)
  • Forward recognition camera

U0131

Lost Communication with Power Steering Control Module

After the power switch is turned on (IG) for 3 seconds or more, when the vehicle is being driven at a speed of 5 km/h (4 mph) or more, a communication error between the power steering ECU (rack and pinion power steering gear assembly) and forward recognition camera is detected for approximately 5 seconds or more.
  • CAN communication system
  • Power steering ECU (Rack and pinion power steering gear assembly)
  • Forward recognition camera

U0142

Lost Communication with Body Control Module "B"

After the power switch is turned on (IG) for 3 seconds or more, a communication error between the main body ECU (multiplex network body ECU) and forward recognition camera is detected for approximately 5 seconds or more.
  • CAN communication system
  • Main body ECU (Multiplex network body ECU)
  • Forward recognition camera

U0155

Lost Communication with Instrument Panel Cluster (IPC) Control Module (Combination Meter)

After the power switch is turned on (IG) for 3 seconds or more, a communication error between the combination meter assembly and forward recognition camera is detected for approximately 50 seconds or more.
  • CAN communication system
  • Combination meter assembly
  • Forward recognition camera

U0293

Lost Communication with Hybrid Vehicle Control System

After the power switch is turned on (IG) for 3 seconds or more, when the vehicle is being driven at a speed of 5 km/h (4 mph) or more, a communication error between the hybrid vehicle control ECU assembly and forward recognition camera is detected for approximately 5 seconds or more.
  • CAN communication system
  • Hybrid vehicle control ECU assembly
  • Forward recognition camera

PROCEDURE

1.

CHECK FOR DTCs (LANE DEPARTURE ALERT SYSTEM)

(a) Clear the DTCs.

Chassis > LKA/LDA > Clear DTCs

(b) Perform the following procedure.

HINT:

If the following procedure is not performed, the previously output DTC cannot be detected.

  1. Turn the power switch on (IG) and wait 1 minute or more.
  2. Drive the vehicle at a speed of 5 km/h (4 mph) or more for 5 seconds or more.

(c) Check for DTCs.

Chassis > LKA/LDA > Trouble Codes

Result

Proceed to

DTC U0123, U0126, U0129, U0131, U0142, U0155 and U0293 are not output

A

DTC U0123, U0126, U0129, U0131, U0142, U0155 or U0293 is output

B
A

USE SIMULATION METHOD TO CHECK 2018 MY Camry HV [07/2017 - 09/2018]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2019 MY Camry HV [09/2018 - 09/2019]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2020 MY Camry HV [09/2019 - 10/2020]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING

B

GO TO CAN COMMUNICATION SYSTEM