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Home >> Toyota >> 2020 >> RAV4 XLE, AWD >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System - Diagnostic Codes >> Pre-Collision System >> DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0125-87: Lost Communication With Multi-axis Acceleration Sensor 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 Missing Message; DTC U0293-87: Lost Communication with Hybrid Powertrain Control Module Missing Message [11/2018 - 12/2021] >> Description
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DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0125-87: Lost Communication With Multi-axis Acceleration Sensor 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 Missing Message; DTC U0293-87: Lost Communication with Hybrid Powertrain Control Module Missing Message [11/2018 - 12/2021]: Description

DTC No. Detection Item DTC Detection Condition Trouble Area
U0100-87 Lost Communication With ECM/PCM "A" Missing Message While the vehicle is being driven at 5 km/h (3 mph) or more, a communication error between the ECM and the forward recognition camera is detected for approximately 6 seconds or more. CAN communication system
U0125-87 Lost Communication With Multi-axis Acceleration Sensor Module Missing Message While the vehicle is being driven at 5 km/h (3 mph) or more, a communication error between the airbag ECU assembly and the forward recognition camera is detected for approximately 4 seconds or more. CAN communication system
U0126-87 Lost Communication with Steering Angle Sensor Module Missing Message 3 seconds after the ignition switch is turned to ON, a communication error between the steering sensor and the forward recognition camera is detected for approximately 1 second or more. CAN communication system
U0129-87 Lost Communication with Brake System Control Module Missing Message for HV Model: 
  1. 3 seconds after the ignition switch is turned to ON, a communication error between the brake booster with master cylinder assembly (skid control ECU) and the forward recognition camera is detected for approximately 1 second or more.

for Gasoline Model: 
  1. 3 seconds after the ignition switch is turned to ON, a communication error between the brake actuator assembly (skid control ECU) and the forward recognition camera is detected for approximately 1 second or more.
CAN communication system
U0293-87 Lost Communication with Hybrid Powertrain Control Module Missing Message While the vehicle is being driven at 5 km/h (3 mph) or more, a communication error between the hybrid vehicle control ECU and the forward recognition camera is detected for approximately 6 seconds or more. CAN communication system