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Home >> Toyota >> 2020 >> Corolla L >> Repair and Diagnosis >> External Pages >> Different car >> Section 401 (Front Camera System - Diagnostic Codes & Circuit Tests) >> Front Camera System >> DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U0101-87: Lost Communication with TCM Missing Message; DTC U0103-87: Lost Communication with Gear Shift Control Module "A" Missing Message; DTC U0114-87: Lost Communication with Four-Wheel Drive Clutch Control Module Missing Message; DTC U0126-87: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module "A" Missing Message; DTC U0131-87: Lost Communication with Power Steering Control Module "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0151-87: Lost Communication with Restraints Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message; DTC U0198-87: Lost Communication with Telematic Control Module "A" Missing Message; DTC U0293-87: Lost Communication with Hybrid/EV Powertrain Control Module Missing Message; DTC U1106-87: Lost Communication with Electric Parking Brake Module Missing Message; DTC U1112-87: Lost Communication with Combination Switch Control Module Missing Message [11/2022 - 08/2023] >> Description

DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U0101-87: Lost Communication with TCM Missing Message; DTC U0103-87: Lost Communication with Gear Shift Control Module "A" Missing Message; DTC U0114-87: Lost Communication with Four-Wheel Drive Clutch Control Module Missing Message; DTC U0126-87: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module "A" Missing Message; DTC U0131-87: Lost Communication with Power Steering Control Module "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0151-87: Lost Communication with Restraints Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message; DTC U0198-87: Lost Communication with Telematic Control Module "A" Missing Message; DTC U0293-87: Lost Communication with Hybrid/EV Powertrain Control Module Missing Message; DTC U1106-87: Lost Communication with Electric Parking Brake Module Missing Message; DTC U1112-87: Lost Communication with Combination Switch Control Module Missing Message [11/2022 - 08/2023]: Description

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2025 Toyota GR Corolla, 2025 Toyota Corolla, 2024 Toyota GR Corolla, 2024 Toyota Corolla, and 2023 Toyota GR Corolla. However, it is still accessible from the selected car via links, so may be relevant.

When a malfunction is detected between various ECUs and sensors, these DTCs are stored.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority
U0100-87 Lost Communication with ECM/PCM "A" Missing Message When a communication error between forward recognition camera and ECM is detected CAN communication system Front Recognition Camera B
U0101-87 Lost Communication with TCM Missing Message When a communication error between forward recognition camera and ECM is detected CAN communication system Front Recognition Camera B
U0103-87 Lost Communication with Gear Shift Control Module "A" Missing Message When a communication error between forward recognition camera and shift control ECU (transmission instrument panel shift assembly) is detected CAN communication system Front Recognition Camera B
U0114-87 Lost Communication with Four-Wheel Drive Clutch Control Module Missing Message When a communication error between forward recognition camera and 4WD ECU assembly is detected CAN communication system Front Recognition Camera B
U0126-87 Lost Communication with Steering Angle Sensor Module Missing Message When a communication error between forward recognition camera and steering sensor is detected CAN communication system Front Recognition Camera B
U0129-87 Lost Communication with Brake System Control Module "A" Missing Message When a communication error between forward recognition camera and skid control ECU (brake actuator assembly) is detected CAN communication system Front Recognition Camera B
U0131-87 Lost Communication with Power Steering Control Module "A" Missing Message When a communication error between forward recognition camera and power steering ECU assembly is detected CAN communication system Front Recognition Camera B
U0140-87 Lost Communication with Body Control Module Missing Message When a communication error between forward recognition camera and main body ECU (multiplex network body ECU) detected CAN communication system Front Recognition Camera B
U0151-87 Lost Communication with Restraints Control Module Missing Message When a communication error between forward recognition camera and airbag ECU assembly detected CAN communication system Front Recognition Camera B
U0155-87 Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message When a communication error between forward recognition camera and combination meter assembly is detected CAN communication system Front Recognition Camera B
U0198-87 Lost Communication with Telematic Control Module "A" Missing Message When a communication error between the forward recognition camera and telematics transceiver is detected CAN communication system Front Recognition Camera B
U0293-87 Lost Communication with Hybrid/EV Powertrain Control Module Missing Message When a communication error between forward recognition camera and hybrid vehicle control ECU is detected CAN communication system Front Recognition Camera B
U1106-87 Lost Communication with Electric Parking Brake Module Missing Message When a communication error between the forward recognition camera and skid control ECU (brake actuator assembly) is detected CAN communication system Front Recognition Camera B
U1112-87 Lost Communication with Combination Switch Control Module Missing Message When a communication error between the forward recognition camera and steering sensor is detected CAN communication system Front Recognition Camera B