Lexus ES: Sound Quality is Bad Only when Disc is Played (Volume is Too Low)
CAUTION / NOTICE / HINT
NOTICE:
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Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.
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When replacing the radio receiver assembly, always replace it with a new one. If a radio receiver assembly which was installed to another vehicle is used, the following may occur:
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A communication malfunction DTC may be stored.
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The radio receiver assembly may not operate normally.
PROCEDURE
1. | REPLACE DISC AND RECHECK |
(a) Replace the disc with a new or known good one and check that the malfunction disappears.
OK:
Malfunction disappears.
OK | | END |
NG | | |
(a) Check that noise is output from the speakers when a disc is inserted and is being read.
OK:
Noise is output.
OK | | REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY |
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INSPECTION PROCEDURE 1. INSPECT OIL PUMP RELIEF VALVE (a) Coat the oil pump relief valve with engine oil, then check that it falls smoothly into the valve hole by its own weight. HINT: If the oil pump relief valve does not fall smoothly, replace the oil pump assembly. 2. INSPECT OIL P
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during mass air flow meter sub-assembly removal/installation are shown below. Necessary Procedures After Parts
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