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Home >> Toyota >> 2021 >> Highlander LE, FWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> Lane Control System - Diagnostic Codes & Circuit Tests >> Lane Control System >> DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U0101-87: Lost Communication with TCM Missing Message; DTC U0126-87: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module Missing Message; DTC U0131-87: Lost Communication with Power Steering Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message; DTC U0293-87: Lost Communication with Hybrid Powertrain Control Module Missing Message [11/2023 - ] >> 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 U0126-87: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module Missing Message; DTC U0131-87: Lost Communication with Power Steering Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message; DTC U0293-87: Lost Communication with Hybrid Powertrain Control Module Missing Message [11/2023 - ]: Description

When a communication malfunction is detected between the forward recognition camera and an ECU or sensor, a DTC is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
U0100-87 Lost Communication with ECM/PCM "A" Missing Message 3 seconds or more after the ignition switch is turned to ON, while the vehicle is being driven at 5 km/h (4 mph) or more and the lane control system is on, a communication error is detected between the ECM and forward recognition camera for approximately 5 seconds or more. CAN communication system
U0101-87 Lost Communication with TCM Missing Message 3 seconds or more after the ignition switch is turned to ON, while the vehicle is being driven at 5 km/h (4 mph) or more and the lane control system is on, a communication error is detected between the hybrid vehicle control ECU*1 or ECM*2 and forward recognition camera for approximately 5 seconds or more. CAN communication system
U0126-87 Lost Communication with Steering Angle Sensor Module Missing Message 3 seconds or more after the ignition switch is turned to ON, while the lane control system is on, a communication error is detected between the steering sensor and forward recognition camera for approximately 5 seconds or more. CAN communication system
U0129-87 Lost Communication with Brake System Control Module Missing Message 3 seconds or more after the ignition switch is turned to ON, while the lane control system is on, a communication error is detected between the No. 2 skid control ECU (brake actuator assembly)*1 or skid control ECU (brake actuator assembly)*2 and forward recognition camera for approximately 5 seconds or more. CAN communication system
U0131-87 Lost Communication with Power Steering Control Module Missing Message 3 seconds or more after the ignition switch is turned to ON, while the lane control system is on, a communication error is detected between the power steering ECU (rack and pinion power steering gear assembly) and forward recognition camera for approximately 5 seconds or more. CAN communication system
U0155-87 Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message 3 seconds or more after the ignition switch is turned to ON, while the lane control system is on, a communication error is detected between the combination meter assembly and forward recognition camera for approximately 50 seconds or more. CAN communication system
U0293-87 Lost Communication with Hybrid Powertrain Control Module Missing Message 3 seconds or more after the ignition switch is turned to ON, while the vehicle is being driven at 5 km/h (4 mph) or more and the lane control system is on, a communication error is detected between the hybrid vehicle control ECU and forward recognition camera for approximately 5 seconds or more. CAN communication system
  1. *1: for HV Model
  2. *2: for Gasoline Model