LIGHTING (EXT): LIGHTING SYSTEM (for HV Model): U012587,U012987,U014087,U029387; Lost Communication with Multi-axis Acceleration Sensor Module Missing Message; 2020 - 2022 MY Corolla Corolla HV [01/2019

Last Modified: 07-31-2024	6.11:8.1.0	Doc ID: RM100000001H5VV
Model Year Start: 2020	Model: Corolla	Prod Date Range: [01/2019 - 09/2022]
Title: LIGHTING (EXT): LIGHTING SYSTEM (for HV Model): U012587,U012987,U014087,U029387; Lost Communication with Multi-axis Acceleration Sensor Module Missing Message; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]

DTC

U012587

Lost Communication with Multi-axis Acceleration Sensor Module Missing Message

DTC

U012987

Lost Communication with Brake System Control Module Missing Message

DTC

U014087

Lost Communication with Body Control Module Missing Message

DTC

U029387

Lost Communication with Hybrid Powertrain Control Module Missing Message

DESCRIPTION

These DTCs are stored if a CAN communication malfunction occurs between the forward recognition camera and other ECUs.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	DTC Output from
U012587	Lost Communication with Multi-axis Acceleration Sensor Module Missing Message	The forward recognition camera does not receive data from the airbag sensor assembly for approximately 5 seconds or more.	CAN communication system Airbag sensor assembly	Front Recognition Camera (Front Lighting Control)
U012987	Lost Communication with Brake System Control Module Missing Message	The forward recognition camera does not receive data from the skid control ECU (brake booster with master cylinder assembly) for approximately 5 seconds or more.	CAN communication system Skid control ECU (brake booster with master cylinder assembly)	Front Recognition Camera (Front Lighting Control)
U014087	Lost Communication with Body Control Module Missing Message	The forward recognition camera does not receive data from the main body ECU (multiplex network body ECU) for approximately 5 seconds or more.	CAN communication system Main body ECU (multiplex network body ECU)	Front Recognition Camera (Front Lighting Control)
U029387	Lost Communication with Hybrid Powertrain Control Module Missing Message	The forward recognition camera does not receive data from the hybrid vehicle control ECU for approximately 5 seconds or more.	CAN communication system Hybrid vehicle control ECU	Front Recognition Camera (Front Lighting Control)

CLEAR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(d) Enter the following menus: Body Electrical / Front Recognition Camera (Front Lighting Control) / Trouble Codes.

(e) Clear the DTCs.

2.	CHECK FOR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(d) Turn the Techstream on.

(e) Enter the following menus: Body Electrical / Front Recognition Camera (Front Lighting Control) / Trouble Codes.

(f) Check for DTCs.

OK:

DTCs are not output.