Lexus NX: Problem Symptoms Table
Lexus NX Service Manual / Audio & Visual & Telematics / Audio / Video / Asc System / Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
- 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.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| 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
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 / 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 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:
Power Back Door cannot be Opened Using the Back Door Opener Switch
DESCRIPTION The multiplex network door ECU receives an open signal from the back door opener switch assembly via the certification ECU (smart key ECU assembly). WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
First perform the communication function inspections in How to Proceed with Troubleshoot
Speaker Circuit (B1360)
DESCRIPTION This DTC is stored when a connection malfunction, such as an open, is detected in the wire harness between the stereo component equalizer assembly and No. 1 speaker assembly with box. DTC No. Detection Item DTC Detection Condition Trouble Area B1360 Speaker Circuit Open
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