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Infiniti
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2009
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M45x AWD V8-4.5L (VK45DE)
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Repair and Diagnosis
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Steering and Suspension
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Steering
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Testing and Inspection
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Initial Inspection and Diagnostic Overview
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Basic Inspection
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EPS
EPS
TROUBLE DIAGNOSIS
Basic Inspection
POWER SUPPLY CIRCUIT TERMINAL LOOSENESS AND BATTERY
Check battery terminals for looseness on both positive and negative ones and ground connection. Also make sure that battery voltage does not drop.