Lexus NX: Diagnosis System
DIAGNOSIS SYSTEM
DIAGNOSIS MODE FUNCTION
(a) w/ Lane Centering Function:
When a malfunction occurs in the lane tracing assist system system, the LTA indicator light illuminates yellow and a message is displayed on the multi-information display.
| Warning Message | Details | DTC/RoB | LTA Indicator |
|---|---|---|---|
| LTA Malfunction Visit Your Dealer | Lane tracing assist system malfunction detected | Stored | Illuminated in yellow |
| LTA Unavailable | Sensor other than the forward recognition camera sensor is temporary unavailable | Stored | Illuminated in yellow |
| LTA Indicator Status | Status |
|---|---|
| *: When entering the lane departure restraint under the lane departure warning, changes to yellow blinking. | |
| Illuminated in yellow | LTA malfunction or temporarily unavailable |
| Yellow blinking | Under lane departure warning |
| Green illuminated | Steering assistance by the lane departure restraint function or lane centering function in operation* |
| White illuminated | Lane deviation monitoring |
| Off | LTA off |
(b) w/o Lane Centering Function:
When a malfunction occurs in the lane tracing assist system, the LDA indicator light illuminates yellow and a message is displayed on the multi-information display.
| Master Warning Indicator | Warning Message | Details | DTC/RoB | LDA Indicator |
|---|---|---|---|---|
| Illuminated | Lane Departure Alert Malfunction Visit Your Dealer | Lane tracing assist system malfunction detected | Stored | Illuminated in yellow |
| Illuminated | Lane Departure Alert Unavailable | Sensor other than the forward recognition camera sensor is temporary unavailable | Stored | Illuminated in yellow |
| LDA Indicator Status | Status |
|---|---|
| *: When entering the lane departure restraint under the lane departure warning, changes to yellow blinking. | |
| Illuminated in yellow | LDA malfunction or temporarily unavailable |
| Yellow blinking | Under lane departure warning |
| Green illuminated | Steering assistance by the lane departure restraint function in operation* |
| White illuminated | Lane deviation monitoring |
| Off | LDA off |
READ NEXT:
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Chassis / Lane Control / Trouble Codes
Freeze Frame Data
FREEZE FRAME DATA DESCRIPTION (a) Whenever a lane tracing assist system DTC is stored, the forward recognition camera stores the current vehicle state (ECU and sensor information) as Freeze Frame Data
Fail-safe Chart
FAIL-SAFE CHART FAIL-SAFE FUNCTION (a) When a malfunction occurs in the lane tracing assist system, a message is displayed on the multi-information display and control is canceled in accordance with t
SEE MORE:
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Before troubleshooting the front camera system, first refer to How to Proceed with Troubleshooting for the pre-collision system.
Click here
If a message is displayed on the multi-information display, refer to How to Proceed with Troubleshooting for the pre-collis
Inspection
INSPECTION PROCEDURE 1. INSPECT LICENSE PLATE LIGHT ASSEMBLY LH (a) Apply auxiliary battery voltage to the connector and check the light illumination condition. OK: Condition Specified Condition Auxiliary battery positive (+) → Y4-1 (B) Auxiliary battery negative (-) → Y4-2 (E) Li
