Lexus ES: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
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Before checking parts for malfunctions, check that the audio system operates normally.
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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 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.
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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 | |
READ NEXT:
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
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:
DESCRIPTION The skid control ECU (brake booster with master cylinder assembly) is connected to the combination meter assembly via CAN communication. CAUTION / NOTICE / HINT NOTICE: After replacing the skid control ECU (brake booster with master cylinder assembly), perform linear solenoid valve offse
DESCRIPTION If the vehicle information stored in the main body ECU (multiplex network body ECU) which is sent via CAN communication during the clearance warning ECU assembly self-diagnosis does not match that of clearance warning ECU assembly, DTC C168D is stored. DTC No. Detection Item DTC D
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