Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001G2C4
Model Year Start: 2019 Model: RAV4 Prod Date Range: [11/2018 - 12/2021]
Title: LIGHTING (EXT): LIGHTING SYSTEM (w/ Headlight ECU without AFS): U0073,U0126,U0142,U0155,U0182; Control Module Communication Bus OFF; 2019 - 2021 MY RAV4 RAV4 HV [11/2018 - 12/2021]

DTC

U0073

Control Module Communication Bus OFF

DTC

U0126

Lost Communication with Steering Angle Sensor Module

DTC

U0142

Lost Communication with Body Control Module "B"

DTC

U0155

Lost Communication with Instrument Panel Cluster (IPC) Control Module

DTC

U0182

Lost Communication With Lighting Control Module Front

DESCRIPTION

These DTCs are stored if a CAN communication malfunction occurs between the headlight ECU sub-assembly RH and other ECUs.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

DTC Output from

Note

U0073

Control Module Communication Bus OFF

The headlight ECU sub-assembly RH does not send/receive data.

CAN communication system

HL AutoLeveling (Sub)

-

U0126

Lost Communication with Steering Angle Sensor Module

The headlight ECU sub-assembly RH does not receive data from the steering sensor for approximately 10 seconds or more.

  • CAN communication system
  • Steering sensor
  • Headlight ECU sub-assembly RH

HL AutoLeveling (Sub)

-

U0142

Lost Communication with Body Control Module "B"

The headlight ECU sub-assembly RH does not receive data from the main body ECU (multiplex network body ECU) for approximately 10 seconds or more.

  • CAN communication system
  • Main body ECU (multiplex network body ECU)
  • Headlight ECU sub-assembly RH

HL AutoLeveling (Sub)

-

U0155

Lost Communication with Instrument Panel Cluster (IPC) Control Module

The headlight ECU sub-assembly does not receive data from the combination meter assembly circuit plate for approximately 10 seconds or more.

  • CAN communication system
  • Combination meter assembly
  • Headlight ECU sub-assembly RH

HL AutoLeveling (Sub)

-

U0182

Lost Communication With Lighting Control Module Front

The headlight ECU sub-assembly RH does not receive data from the headlight ECU sub-assembly LH for approximately 10 seconds or more.

  • CAN communication system
  • Headlight ECU sub-assembly LH
  • Headlight ECU sub-assembly RH

HL AutoLeveling (Sub)

-

PROCEDURE

1.

CLEAR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / HL AutoLeveling (Sub) / Clear DTCs.

(e) Clear the DTCs.

Body Electrical > HL AutoLeveling (Sub) > Clear DTCs

NEXT

2.

CHECK FOR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Wait 10 seconds or more.

(d) Turn the Techstream on.

(e) Enter the following menus: Body Electrical / HL AutoLeveling (Sub) / Trouble Codes.

(f) Check for DTCs.

Body Electrical > HL AutoLeveling (Sub) > Trouble Codes

OK:

DTCs are not output.

OK

USE SIMULATION METHOD TO CHECK

NG

GO TO CAN COMMUNICATION SYSTEM

for HV Model:

Click here 2019 MY RAV4 HV [11/2018 - 02/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING 2019 - 2024 MY RAV4 HV [02/2019 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING

for Gasoline Model:

Click here 2019 - 2024 MY RAV4 [11/2018 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING