Lexus NX: Invalid Data Received from Brake System Control Module Invalid Serial Data Received (U041881)
DESCRIPTION
- The forward recognition camera receives signals from the skid control ECU (brake booster with master cylinder assembly) corresponding to the brake control status via the CAN communication line.
- When a brake control system malfunction signal is received from the skid control ECU (brake booster with master cylinder assembly), the forward recognition camera outputs U041881.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U041881 | Invalid Data Received from Brake System Control Module Invalid Serial Data Received | Once 3 seconds elapse after turning the power switch on (IG), the forward recognition camera receives a brake control system malfunction signal from the skid control ECU (brake booster with master cylinder assembly) for approximately 1 second or more. |
|
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
-
If the forward recognition camera has been replaced with a new one, be sure to perform forward recognition camera adjustment.
HINT:
Forward recognition camera adjustment can be performed by using either "One Time Recognition" or "Sequential Recognition".
One Time Recognition:
Click here
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Sequential Recognition:
Click here
PROCEDURE
| 1. | CHECK ELECTRONICALLY CONTROLLED BRAKE SYSTEM |
(a) Check the DTCs.
Click here
OK:
Electronically controlled brake system DTCs are not output.
HINT:
If U041881 is output in the pre-collision system, electronically controlled brake system DTCs may also have been output. Check the electronically controlled brake system first.
| OK | .gif) | REPLACE FORWARD RECOGNITION CAMERA |
| NG | | GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM |
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CUSTOMIZE PARAMETERS CUSTOMIZE SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function) HINT: The following items can be customized. NOTICE:
When the customer requests a change in a function, first make sure that the function can be customized.
Record the current settings before customiz
Adjustment
ADJUSTMENT CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH sides.
The procedure listed below is for the LH side.
PROCEDURE 1. PREPARE VEHICLE FOR FOG LIGHT AIM ADJUSTMENT (a) Prepare the vehicle:
Ensure that there is no damage or deformation to the vehicle body arou
