Lexus NX: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
- If no problem symptoms are found when a DTC is output in the DTC check on the lane tracing assist, check each symptom by checking the suspected areas in the order they are listed.
- When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly 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.
HINT:
Before performing failure diagnosis according to the following inspection points, check the forward recognition camera system power source circuit fuses and relays.
LANE CONTROL SYSTEM| Symptom | Suspected Area | Link |
|---|---|---|
| Lane tracing assist system does not operate at all | Steering pad switch circuit | |
| Forward recognition camera adjustment HINT: Perform forward recognition camera axis alignment with either "One time recognition" or "Sequential recognition". |
| |
| The LTA/LDA indicator light does not turn on even by operating the LTA/LDA main switch (steering pad switch assembly) | Indicator circuit | |
| Steering pad switch circuit | | |
| Combination meter assembly | | |
| The LTA/LDA indicator light does not turn off even by operating the LTA/LDA main switch (steering pad switch assembly) | Indicator circuit | |
| Steering pad switch circuit | | |
| Combination meter assembly | | |
| The lane tracing assist is not canceled even by operating the turn signals | Data list / Active test (Check the item "Turn Switch (Right)", "Turn Switch (Left)") | |
| Turn signal switch circuit | | |
| The lane tracing assist does not operate many times even when the white lines are visible | Check conditions for operating/not operating | |
| Forward recognition camera adjustment HINT: Perform forward recognition camera axis alignment with either "One time recognition" or "Sequential recognition". |
| |
| The lane tracing assist is operating but the system control status is not displayed on the multi-information display | Data list / Active test (Check the item "LDA Control") | |
| Combination meter assembly | | |
| Lane departure warning function is on but the buzzer does not sound even when straying from white line | Combination meter assembly | |
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Terminals Of Ecu
TERMINALS OF ECU CHECK FORWARD RECOGNITION CAMERA NOTICE: DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the Techstream once the insp
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Hybrid cooling syste
