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Infiniti
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2010
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M35x AWD V6-3.5L (VQ35HR)
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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U Code Charts
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U121B
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With Mobile Entertainment System
With Mobile Entertainment System
U121B AV CONTROL UNIT
Description
Replace the AV control unit if this DTC is displayed.
With Mobile Entertainment System
.
DTC Logic