FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM
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Car repair manuals for everyone.
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Mercury
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2009
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Milan AWD L4-2.3L
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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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P Code Charts
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P0144
P0144
Note:
Refer to the applicable vehicle system to diagnose the body and chassis DTCs.
P0144 - O2 Circuit High Voltage (Bank 1, Sensor 3):
