Lexus NX: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
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:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | Link |
|---|---|---|
| System does not operate at all (both the blind spot monitor function and RCTA function do not operate) | Proceed to "Power Source Circuit" | |
| Proceed to "Main Switch Circuit" | | |
| Blind spot monitor sensor LH | | |
| System cannot be turned off | Proceed to "Main Switch Circuit" | |
| Blind spot monitor sensor LH | | |
| "Blind Spot Monitor Unavailable" is displayed on the multi-information display | Check abnormality history | |
| Blind spot monitor sensor RH | | |
| Blind spot monitor sensor LH | | |
| Combination meter assembly | | |
| "Blind Spot Monitor System Malfunction Visit Your Dealer" is displayed on the multi-information display | Check abnormality history | |
| Blind spot monitor sensor RH | | |
| Blind spot monitor sensor LH | | |
| Combination meter assembly | |
| Symptom | Suspected Area | Link |
|---|---|---|
| Outer rear view mirror indicator RH does not illuminate | Proceed to "Blind Spot Monitor Beam Axis Confirmation" | |
| Outer mirror RH | | |
| Outer mirror control ECU assembly RH | | |
| Outer mirror retractor RH | | |
| Blind spot monitor sensor RH | | |
| Outer rear view mirror indicator LH does not illuminate | Proceed to "Blind Spot Monitor Beam Axis Confirmation" | |
| Outer mirror LH | | |
| Outer mirror control ECU assembly LH | .gif) | |
| Outer mirror retractor LH | | |
| Blind spot monitor sensor LH | | |
| Outer rear view mirror indicator RH remains illuminated | Proceed to "Blind Spot Monitor Beam Axis Confirmation" | |
| Blind spot monitor sensor RH | | |
| Outer rear view mirror indicator LH remains illuminated | Proceed to "Blind Spot Monitor Beam Axis Confirmation" | |
| Blind spot monitor sensor LH | | |
| Outer rear view mirror indicator RH does not flash | Proceed to "Turn Signal Switch Circuit" in Problem Symptoms Table for the Lighting (EXT) section | |
| Blind spot monitor sensor RH | | |
| Outer rear view mirror indicator LH does not flash | Proceed to "Turn Signal Switch Circuit" in Problem Symptoms Table for the Lighting (EXT) section | |
| Blind spot monitor sensor LH | | |
| Outer rear view mirror indicator RH continues to flash | Blind spot monitor sensor RH | |
| Outer rear view mirror indicator LH continues to flash | Blind spot monitor sensor LH | |
| Symptom | Suspected Area | Link |
|---|---|---|
| Function does not operate at all (the blind spot monitor function operates normally) | Data List / Active Test (Reverse) | |
| Hybrid control system | | |
| Blind spot monitor sensor LH | | |
| When shift lever is in R, detection operation is normal but RCTA indicator does not appear on multi-display | CAN communication system | |
| Blind spot monitor sensor RH | | |
| Blind spot monitor sensor LH | | |
| Rear television camera assembly*1 | | |
| Parking Assist ECU *2 | | |
| Multi-display assembly | |
*1: w/ Parking Assist Monitor System
*2: w/ Panoramic View Monitor System
READ NEXT:
Terminals Of Ecu
TERMINALS OF ECU BLIND SPOT MONITOR SENSOR LH (MASTER) Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition V1-3 (BIND) - V1-10 (BLGD) B - W-B Blin
Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION (a) Blind spot monitor data and Diagnostic Trouble Codes (DTCs) can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctionin
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 blind spot monitor main switch (combination switch assembly) on. (d) Turn the Techst
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Precaution
PRECAUTION HANDLING PRECAUTIONS FOR SRS AIRBAG SYSTEM (a) This vehicle is equipped with a Supplemental Restraint System (SRS). Failure to carry out service operations in the correct sequence could cause the SRS to unexpectedly deploy during servicing. This may cause a serious accident. Before servic
PTC Heater Circuit
DESCRIPTION The air conditioning amplifier assembly sends operation signals to the PTC heater relays when quick heater assembly operation conditions are met. Based on the signals from the air conditioning amplifier assembly, the PTC heater relays turn on, and power is supplied to the quick heater as
