Lexus NX: Indicator Circuit
DESCRIPTION
The LTA/LDA indicator output request signal is sent from the forward recognition camera to the combination meter assembly via CAN communication.
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the forward recognition camera, make sure to replace it with a new one. If a device that was installed in another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle, and may cause a DTC to be output.
-
When replacing the forward recognition camera, the forward recognition camera optical axis must be adjusted.
HINT:
Perform forward recognition camera axis alignment with either "One time recognition" or "Sequential Recognition".
-
One Time Recognition: Click here
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Sequential Recognition: Click here
-
One Time Recognition: Click here
- When replacing the combination meter assembly, be sure to replace it with a new part. If a device that was installed in another vehicle is used, the information stored in the combination meter assembly will not match the information from the vehicle, and may cause a DTC to be output.
PROCEDURE
| 1. | READ VALUE USING TECHSTREAM (CAN BUS CHECK) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: System Select / CAN Bus Check.
CAN Bus Check| Result | Proceed to |
|---|---|
| CAN communication system is normal (DTC (CAN Communication Malfunction, ECU Communication Malfunction/Communication Lost) is not output) | A |
| CAN communication system is malfunctioning (DTC (CAN Communication Malfunction, ECU Communication Malfunction/Communication Lost) is output) | B |
| B | .gif) | GO TO CAN COMMUNICATION SYSTEM |
|
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| 2. | CHECK FOR DTC (HEALTH CHECK) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: System Select / Health Check.
(e) Check DTCs.
(f) Turn the power switch off.
| Result | Proceed to |
|---|---|
| DTCs are not output. | A |
| DTCs are output. | B |
| B | | GO TO FLOWCHART OF DTC |
|
| 3. | PERFORM ACTIVE TEST USING TECHSTREAM (METER DISPLAY 1) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Combination Meter / Active Test.
(e) According to the display on the Techstream, perform the Active Test.
Body Electrical > Combination Meter > Active Test| Tester Display | Measurement Item | Control Range | Diagnostic Note |
|---|---|---|---|
| Meter Display 1 | Multi-information display | OFF / All | - |
| Tester Display |
|---|
| Meter Display 1 |
(f) Turn the power switch off.
| Result | Proceed to |
|---|---|
| The multi-information display in the combination meter assembly turns on according to the Active Test | A |
| The multi-information display in the combination meter assembly does not turn off according to the Active Test | B |
| A | | TO THE NEXT CHECK CIRCUIT SHOWN IN THE LIST PROBLEM SYMPTOMS TABLE |
| B | | REPLACE COMBINATION METER ASSEMBLY |
READ NEXT:
Removal
REMOVAL PROCEDURE 1. REMOVE FRONT BUMPER ASSEMBLY (a) for Sport Package: Click here (b) except Sport Package: Click here 2. REMOVE MILLIMETER WAVE RADAR SENSOR ASSEMBLY NOTICE: Do not reuse the mi
Adjustment
ADJUSTMENT CAUTION / NOTICE / HINT CAUTION: Radiofrequency radiation exposure information:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.
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SEE MORE:
Installation
INSTALLATION CAUTION / NOTICE / HINT NOTICE: If the millimeter wave radar sensor assembly has been struck or dropped, replace the millimeter wave radar sensor assembly with a new one. PROCEDURE 1. INSTALL MILLIMETER WAVE RADAR SENSOR ASSEMBLY (a) Attach the guide to install the millimeter wave radar
Stereo Component Amplifier Malfunction (B15A3)
DESCRIPTION These DTCs are stored when a malfunction occurs in the stereo component amplifier assembly. DTC No. Detection Item DTC Detection Condition Trouble Area B15A3 Stereo Component Amplifier Malfunction When one of the conditions below is met:
Internal power supply malfunct
