LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model with AFS): U0073,U0126,U0142,U0182; Control Module Communication Bus OFF; 2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018

Last Modified: 07-31-2024	6.11:8.1.0	Doc ID: RM100000001AUMG
Model Year Start: 2019	Model: GR Corolla	Prod Date Range: [06/2018 - 09/2022]
Title: LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model with AFS): U0073,U0126,U0142,U0182; Control Module Communication Bus OFF; 2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]

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

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
U0073	Control Module Communication Bus OFF	The headlight ECU sub-assembly RH does not send/receive data.	CAN communication system	AFS (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	AFS (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)	AFS (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	AFS (Sub)