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Home >> Toyota >> 2025 >> 4Runner TRD Pro >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> 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 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 U0137-87: Lost Communication With Trailer Brake Control Module Missing Message; DTC U0139-87: Lost Communication with Suspension Control Module "B" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message; DTC U1106-87: Lost Communication with Electric Parking Brake Module Missing Message [12/2024 - ] >> Description
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DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U0101-87: Lost Communication with TCM 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 U0137-87: Lost Communication With Trailer Brake Control Module Missing Message; DTC U0139-87: Lost Communication with Suspension Control Module "B" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message; DTC U1106-87: Lost Communication with Electric Parking Brake Module Missing Message [12/2024 - ]: Description

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 TCM 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 4 wheel drive control ECU 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 for Gasoline Model: 
  1. When a communication error between forward recognition camera and skid control ECU (brake actuator assembly) is detected

except Gasoline Model: 
  1. When a communication error between forward recognition camera and No. 2 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 (rack and pinion power steering gear assembly) is detected CAN communication system Front Recognition Camera B
U0137-87 Lost Communication With Trailer Brake Control Module Missing Message When a communication error between forward recognition camera and trailer brake control ECU (brake control with bracket relay) is detected CAN communication system Front Recognition Camera B
U0139-87 Lost Communication with Suspension Control Module "B" Missing Message When a communication error between forward recognition camera and stabilizer control ECU 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
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
U1106-87 Lost Communication with Electric Parking Brake Module Missing Message for Gasoline Model: 
  1. When a communication error between forward recognition camera and skid control ECU (brake actuator assembly) is detected

except Gasoline Model: 
  1. When a communication error between forward recognition camera and No. 2 skid control ECU (brake actuator assembly) is detected
 CAN communication system Front Recognition Camera B
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