Lexus ES: Problem Symptoms Table
Lexus ES (XZ10) Service Manual / Audio & Visual & Telematics / Audio / Video / Active Noise Control System(for Hv Model) / Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
- Before checking parts for malfunctions, check that the audio system operates normally.
- 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.
HINT:
Removing dealer installed options and optional components before performing diagnosis makes it easier to determine the location of a malfunction.
Active Noise Control System| Symptom | Suspected Area | Link |
|---|---|---|
| Muffled engine sounds in cabin | Proceed to "Power Source Circuit" | |
| Proceed to "Input / Output Signal Circuit" | | |
| Front No. 1 speaker assembly LH | | |
| Front No. 1 speaker assembly RH | | |
| Speaker assembly with bracket | | |
| Harness or connector | - | |
| Stereo component equalizer assembly | | |
| Stereo component amplifier assembly | | |
| Abnormal noise from speakers | Front No. 1 speaker assembly LH | |
| Front No. 1 speaker assembly RH | | |
| Speaker assembly with bracket | | |
| Harness or connector | - | |
| Stereo component equalizer assembly | | |
| Stereo component amplifier assembly | |
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System Description
SYSTEM DESCRIPTION ACTIVE NOISE CONTROL SYSTEM (a) The active noise control system is a system that detects muffled engine sounds produced in sync that fluctuates according to the engine speed, by usi
System Diagram
SYSTEM DIAGRAM
Terminals Of Ecu
TERMINALS OF ECU STEREO COMPONENT EQUALIZER ASSEMBLY Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition G15-1 (CANH) P CAN communication signal
SEE MORE:
Installation
INSTALLATION PROCEDURE 1. INSTALL FRONT NO. 1 STABILIZER BAR BUSHING (for LH Side) (a) Install the front No. 1 stabilizer bar bushing to the front stabilizer bar as shown in the illustration. *a Cutout *b Stopper Ring Front of the Vehicle Outside of the Vehicle NOTICE:
Brake Switch "A" Circuit Open (P057113)
DESCRIPTION When the brakes are applied by the dynamic radar cruise control system, the skid control ECU (brake booster with master cylinder assembly) operates the stop light switch assembly (stop light control relay) to illuminate the stop lights. If the hybrid vehicle control ECU receives a signal
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