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
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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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