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Home >> Lexus >> 2019 >> RX 450h Base >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System (Diagnostic Codes & Circuit Tests) >> Pre-Collision System >> 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 [08/2019 - ] >> Description
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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 [08/2019 - ]: Description

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

DTC No. Detection Item DTC Detection Condition Trouble Area
U0125-87 Lost Communication with Multi-axis Acceleration Sensor Module Missing Message While the vehicle is being driven at 5 km/h (4 mph) or more, a communication error between the yaw rate sensor 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 or more after the power switch is turned on (IG), 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 3 seconds or more after the power switch is turned on (IG), a communication error between the skid control ECU assembly 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 (4 mph) or more, a communication error between the hybrid vehicle control ECU assembly and the forward recognition camera is detected for approximately 6 seconds or more. CAN communication system