Last Modified: 05-13-2024 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)

PROCEDURE

1.

CLEAR DTC

(a) Connect the Techstream to the DLC3.

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

(c) Turn the Techstream on.

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

(e) Clear the DTCs.

Body Electrical > Front Recognition Camera (Front Lighting Control) > Clear DTCs

NEXT

2.

CHECK FOR DTC

(a) Connect the Techstream to the DLC3.

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

(c) Wait 10 seconds or more.

(d) Turn the Techstream on.

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

(f) Check for DTCs.

Body Electrical > Front Recognition Camera (Front Lighting Control) > Trouble Codes

OK:

DTCs are not output.

OK

USE SIMULATION METHOD TO CHECK

NG

GO TO CAN COMMUNICATION SYSTEM