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Home >> Lexus >> 2022 >> UX 250h Base >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision (Diagnostic Codes) >> Pre-Collision System >> DTC U0125-87: Lost Communication with Multi-axis Acceleration Sensor Module Missing Message; DTC U012687: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U012987: Lost Communication with Brake System Control Module Missing Message; DTC U013187: Lost Communication with Power Steering Control Module Missing Message; DTC U029387: Lost Communication with Hybrid Powertrain Control Module Missing Message [07/2022 - ] >> Description
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DTC U0125-87: Lost Communication with Multi-axis Acceleration Sensor Module Missing Message; DTC U012687: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U012987: Lost Communication with Brake System Control Module Missing Message; DTC U013187: Lost Communication with Power Steering Control Module Missing Message; DTC U029387: Lost Communication with Hybrid Powertrain Control Module Missing Message [07/2022 - ]: Description

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

DTC No. Detection Item DTC Detection Condition Trouble Area
U012587 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 yaw rate sensor (airbag ECU assembly) and the forward recognition camera is detected for approximately 4 seconds or more. CAN communication system
U012687 Lost Communication with Steering Angle Sensor Module Missing Message 3 seconds or more after the ignition switch is turned ON, a communication error between the steering sensor and the forward recognition camera is detected for approximately 1 second or more. CAN communication system
U012987 Lost Communication with Brake System Control Module Missing Message 3 seconds or more after the ignition switch is turned ON, a communication error between the skid control ECU (brake booster with master cylinder assembly) and the forward recognition camera is detected for approximately 1 second or more. CAN communication system
U013187 Lost Communication with Power Steering Control Module Missing Message 3 seconds after the ignition switch is turned to ON, a communication error between the power steering ECU (power steering ECU with motor assembly) and the forward recognition camera is detected for approximately 2 second or more. CAN communication system
U029387 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