Lexus NX: Lost Communication With Multi-axis Acceleration Sensor Module Missing Message (U012587,U012687,U012987,U029387)

Lexus NX Service Manual / Vehicle Interior / Pre-collision / Pre-collision System / Lost Communication With Multi-axis Acceleration Sensor Module Missing Message (U012587,U012687,U012987,U029387)

DESCRIPTION

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 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 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

U012987

Lost Communication with Brake System Control Module Missing Message

3 seconds after the power switch is turned on (IG), 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

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

PROCEDURE

1.

CHECK FOR DTC

(a) Clear the DTCs.

Click here

Body Electrical > Pre-Collision System > Clear DTCs

(b) Make sure that the DTC detection conditions are met.

HINT:

If the detection conditions are not met, the system cannot detect the malfunction.

(c) Recheck for DTCs and check that no DTCs are output.

Click here

Body Electrical > Pre-Collision System > Trouble Codes

OK:

U012587, U012687, U012987 and U029387 are not output.

OK

USE SIMULATION METHOD TO CHECK

NG

GO TO CAN COMMUNICATION SYSTEM

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