Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GWBX
Model Year Start: 2020 Model: GR Corolla Prod Date Range: [01/2019 - 09/2022]
Title: LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): U0100,...,U1117; Lost Communication With ECM/PCM "A"; 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]

DTC

U0100

Lost Communication With ECM/PCM "A"

DTC

U0101

Lost Communication with TCM

DTC

U0120

Lost Communication With Starter / Generator Control Module

DTC

U0126

Lost Communication with Steering Angle Sensor Module

DTC

U0129

Lost Communication with Brake System Control Module

DTC

U0151

Lost Communication with Restraints Control Module

DTC

U0155

Lost Communication with Instrument Panel Cluster (IPC) Control Module

DTC

U0163

Lost Communication with Navigation Control Module

DTC

U0164

Lost Communication with HVAC Control Module

DTC

U023A

Lost Communication With Image Processing Module "A"

DTC

U0327

Software Incompatibility with Vehicle Security Control Module

DTC

U1106

Lost Communication with Electric Parking Brake Module

DTC

U1117

Lost Communication with Accessory Gateway

DESCRIPTION

These DTCs are stored if a CAN communication malfunction occurs between the main body ECU (multiplex network body ECU) and other ECUs.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

DTC Output from

U0100

Lost Communication With ECM/PCM "A"

The main body ECU (multiplex network body ECU) does not receive data from the ECM for approximately 10 seconds or more.
  • CAN communication system
  • ECM

Main Body

U0101

Lost Communication with TCM

The main body ECU (multiplex network body ECU) does not receive data from the ECM for approximately 10 seconds or more.
  • CAN communication system
  • TCM*1
  • ECM*2

Main Body

U0120

Lost Communication With Starter / Generator Control Module

The main body ECU (multiplex network body ECU) does not receive data from the certification ECU (smart key ECU assembly) for approximately 10 seconds or more.
  • CAN communication system
  • Certification ECU (smart key ECU assembly)

Main Body

U0126

Lost Communication with Steering Angle Sensor Module

The main body ECU (multiplex network body ECU) does not receive data from the steering sensor for approximately 10 seconds or more.
  • CAN communication system
  • Steering sensor

Main Body

U0129

Lost Communication with Brake System Control Module

The main body ECU (multiplex network body ECU) does not receive data from the skid control ECU (brake actuator assembly) for approximately 10 seconds or more.
  • CAN communication system
  • Skid control ECU (brake actuator assembly)

Main Body

U0151

Lost Communication with Restraints Control Module

The main body ECU (multiplex network body ECU) does not receive data from the airbag sensor assembly for approximately 10 seconds or more.
  • CAN communication system
  • Airbag sensor assembly

Main Body

U0155

Lost Communication with Instrument Panel Cluster (IPC) Control Module

The main body ECU (multiplex network body ECU) does not receive data from the combination meter assembly for approximately 10 seconds or more.
  • CAN communication system
  • Combination meter assembly

Main Body

U0163

Lost Communication with Navigation Control Module

The main body ECU (multiplex network body ECU) does not receive data from the radio and display receiver assembly for approximately 10 seconds or more.
  • CAN communication system
  • Radio and display receiver assembly

Main Body

U0164

Lost Communication with HVAC Control Module

The main body ECU (multiplex network body ECU) does not receive data from the air conditioning amplifier assembly for approximately 10 seconds or more.
  • CAN communication system
  • Air conditioning amplifier assembly

Main Body

U023A

Lost Communication With Image Processing Module "A"

The main body ECU (multiplex network body ECU) does not receive data from the forward recognition camera for approximately 10 seconds or more.
  • CAN communication system
  • Forward recognition camera

Main Body

U0327

Software Incompatibility with Vehicle Security Control Module

The main body ECU (multiplex network body ECU) does not receive data from the certification ECU (smart key ECU assembly) for approximately 10 seconds or more.
  • CAN communication system
  • Certification ECU (smart key ECU assembly)

Main Body

U1106

Lost Communication with Electric Parking Brake Module

The main body ECU (multiplex network body ECU) does not receive data from the skid control ECU (brake actuator assembly) for approximately 10 seconds or more.
  • CAN communication system
  • Skid control ECU (brake actuator assembly)

Main Body

U1117

Lost Communication with Accessory Gateway

The main body ECU (multiplex network body ECU) does not receive data from the option connector (bus buffer ECU) for approximately 10 seconds or more.
  • CAN communication system
  • Option connector (bus buffer ECU)

Main Body
  • *1: for M20A-FKS
  • *2: for 2ZR-FAE

PROCEDURE

1.

CLEAR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Main Body / Trouble Codes.

(e) Clear the DTCs.

Body Electrical > Main Body > Clear DTCs

NEXT

2.

CHECK FOR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Wait 20 seconds or more.

(d) Turn the Techstream on.

(e) Enter the following menus: Body Electrical / Main Body / Trouble Codes.

(f) Check for DTCs.

Body Electrical > Main Body > Trouble Codes

OK:

DTCs are not output.

OK

USE SIMULATION METHOD TO CHECK

NG

GO TO CAN COMMUNICATION SYSTEM