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Home >> Lexus >> 2020 >> NX 300h Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> Lane Tracing Assist System - Diagnostic Codes & Circuit Tests >> Lane Tracing Assist 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 U015587: Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message; DTC U029387: Lost Communication With Hybrid Powertrain Control Module Missing Message [05/2019 - ] >> 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 U015587: Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message; DTC U029387: Lost Communication With Hybrid Powertrain Control Module Missing Message [05/2019 - ]: Description

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

DTC No. Detection Item DTC Detection Condition Trouble Area
U012587 Lost Communication With Multi-axis Acceleration Sensor Module Missing Message 3 seconds after the power switch is turned on (IG), while the vehicle speed is 5 km/h (4 mph) or more and the lane tracing assist is on, a communication error between the airbag ECU assembly and the forward recognition camera is detected for approximately 5 seconds or more. CAN communication system
U012687 Lost Communication with Steering Angle Sensor Module Missing Message 3 seconds after the power switch is turned on (IG), while the lane tracing assist is on, a communication error between the steering sensor and the forward recognition camera is detected for approximately 5 seconds or more. CAN communication system
U012987 Lost Communication with Brake System Control Module Missing Message 3 seconds after the power switch is turned on (IG), while the lane tracing assist is on, a communication error between the skid control ECU (brake booster with master cylinder assembly) and the forward recognition camera is detected for approximately 5 seconds or more. CAN communication system
U013187 Lost Communication with Power Steering Control Module Missing Message 3 seconds after the power switch is turned on (IG), while the lane tracing assist is on, a communication error between the power steering ECU assembly and the forward recognition camera is detected for approximately 5 seconds or more. CAN communication system
U015587 Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message 3 seconds after the power switch is turned on (IG), while the lane tracing assist is on, a communication error between the combination meter assembly and the forward recognition camera is detected for approximately 50 seconds or more. CAN communication system
U029387 Lost Communication With Hybrid Powertrain Control Module Missing Message 3 seconds after the power switch is turned on (IG), while the vehicle speed is 5 km/h (4 mph) or more and the lane tracing assist is on, a communication error between the hybrid vehicle control ECU and the forward recognition camera is detected for approximately 5 seconds or more. CAN communication system