SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMC Made): U012987,U023A87; Lost Communication with Brake System Control Module "A" Missing Message; 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM10000000259U4
Model Year Start: 2023	Model: GR Corolla	Prod Date Range: [09/2022 - 11/2022]
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMC Made): U012987,U023A87; Lost Communication with Brake System Control Module "A" Missing Message; 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]

DTC

U012987

Lost Communication with Brake System Control Module "A" Missing Message

DTC

U023A87

Lost Communication with Image Processing Module "A" Missing Message

DESCRIPTION

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Warning Indicate	DTC Output from	Priority	Test Mode / Check Mode
U012987	Lost Communication with Brake System Control Module "A" Missing Message	Communication stop occurs between the airbag sensor assembly and skid control ECU continuously for approximately 2 seconds or more.	CAN communication system Airbag sensor assembly Skid control ECU (brake actuator assembly)	Comes on	SRS Airbag	B	Does not apply to test/check mode
U023A87	Lost Communication with Image Processing Module "A" Missing Message	Communication stop occurs between the airbag sensor assembly and forward recognition camera continuously for approximately 10 seconds or more.	CAN communication system Airbag sensor assembly Forward recognition camera	Comes on	SRS Airbag	B	Does not apply to test/check mode

1.	CHECK CAN COMMUNICATION SYSTEM

(a) Using the GTS, check if the CAN communication system is functioning normally.

HINT:

for HV Model: Click here

for Gasoline Model: Click here

END