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 | - |
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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:
DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the following table, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. HINT: Using the Techstream to read the Data List allows the values or state
DTC SUMMARY MALFUNCTION DESCRIPTION These DTCs indicate the resolver output signal is abnormal. The cause of this malfunction may be one of the following: Area Main Malfunction Description Step Inverter low-voltage circuit The connectors are not connected properly 2 Resolver