Lexus NX: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
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Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptom 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.
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Inspect the fuses and relays related to this system before inspecting the suspected areas below.
ASC System
| Symptom | Suspected Area | Link |
| Simulated engine sounds cannot be heard. | Proceed to "Power Source Circuit" | |
| Proceed to "Main Switch Circuit" | |
| No. 1 speaker assembly with box | |
| Stereo component equalizer assembly | |
| Vehicle sound switch indicator does not illuminate. | Vehicle sound switch | |
| Harness or connector | - |
READ NEXT:
TERMINALS OF ECU CHECK STEREO COMPONENT EQUALIZER ASSEMBLY (a) Measure the voltage and resistance according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Desc
DTC CHECK / CLEAR DTC CHECK USING Techstream (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 / ASC
FREEZE FRAME DATA FREEZE FRAME DATA (a) Whenever an ASC system DTC is stored, the stereo component equalizer assembly stores the current vehicle state as freeze frame data. CHECK FREEZE FRAME DATA (a)
SEE MORE:
DESCRIPTION The video signal from the rear television camera assembly is transmitted to the multi-display assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
When the "!" mark is displayed on the multi-display assembly after disconnecting the cable from the negative (-) auxiliary battery te
DESCRIPTION The main body ECU (multiplex network body ECU) controls the automatic high beam system based on signals received from the forward recognition camera. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.