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Home >> Mercury >> 1991 >> Cougar/XR7 V6-232 3.8L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Pinpoint Tests >> QC - Output State Check Not Functioning >> QC1 - Check For Codes 23, 53, 63, 121, 122 or 123

QC1 - Check For Codes 23, 53, 63, 121, 122 or 123

Pinpoint Test QC1:



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