LIGHTING (EXT): LIGHTING SYSTEM (w/ AFS): U0073,U0101,U0126,U0129,U0142,U0155,U0242,U0293; Control Module Communication Bus Off; 2019 - 2021 MY RAV4 RAV4 HV [02/2019

Last Modified: 01-30-2024	6.11:8.1.0	Doc ID: RM100000001H3XA
Model Year Start: 2019	Model: RAV4	Prod Date Range: [02/2019 - 12/2021]
Title: LIGHTING (EXT): LIGHTING SYSTEM (w/ AFS): U0073,U0101,U0126,U0129,U0142,U0155,U0242,U0293; Control Module Communication Bus Off; 2019 - 2021 MY RAV4 RAV4 HV [02/2019 - 12/2021]

DTC

U0073

Control Module Communication Bus Off

DTC

U0101

Lost Communication with TCM

DTC

U0126

Lost Communication with Steering Angle Sensor Module

DTC

U0129

Lost Communication with Brake System Control Module

DTC

U0142

Lost Communication with Body Control Module "B"

DTC

U0155

Lost Communication with Instrument Panel Cluster (IPC) Control Module

DTC

U0242

Lost Communication With Headlamp Control Module "B"

DTC

U0293

Lost Communication with Hybrid Vehicle Control System

DESCRIPTION

These DTCs are stored if a CAN communication malfunction occurs between the headlight ECU sub-assembly LH 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 LH does not send/receive data.	CAN communication system Headlight ECU sub-assembly LH	AFS	-
U0101	Lost Communication with TCM	The headlight ECU sub-assembly LH does not receive data from the hybrid vehicle control ECU assembly for approximately 10 seconds or more.	CAN communication system Hybrid vehicle control ECU assembly Headlight ECU sub-assembly LH	AFS	-
U0126	Lost Communication with Steering Angle Sensor Module	The headlight ECU sub-assembly LH does not receive data from the steering sensor for approximately 10 seconds or more.	CAN communication system Steering sensor Headlight ECU sub-assembly LH	AFS	-
U0129	Lost Communication with Brake System Control Module	The headlight ECU sub-assembly LH does not receive data from the brake booster with master cylinder assembly (skid control ECU) for approximately 10 seconds or more.	CAN communication system Brake booster with master cylinder assembly (skid control ECU) Headlight ECU sub-assembly LH	AFS	-
U0142	Lost Communication with Body Control Module "B"	The headlight ECU sub-assembly LH 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 LH	AFS	-
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	The headlight ECU sub-assembly LH does not receive data from the combination meter assembly for approximately 30 seconds or more.	CAN communication system Combination meter assembly Headlight ECU sub-assembly LH	AFS	-
U0242	Lost Communication With Headlamp Control Module "B"	The headlight ECU sub-assembly LH does not receive data from the headlight ECU sub-assembly RH for approximately 10 seconds or more.	CAN communication system Headlight ECU sub-assembly RH Headlight ECU sub-assembly LH	AFS	-
U0293	Lost Communication with Hybrid Vehicle Control System	The headlight ECU sub-assembly LH does not receive data from the hybrid vehicle control ECU assembly for approximately 10 seconds or more.	CAN communication system Hybrid vehicle control ECU assembly Headlight ECU sub-assembly LH	AFS	-