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Home >> Mercury >> 2010 >> Milan Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1103 (Exterior Lighting System) >> Diagnostic Tests >> Reversing Lamps >> Pinpoint Tests >> Pinpoint Test O: The Reversing Lamps Are Inoperative >> Normal Operation - Vehicles Equipped With 4R75E Transmission

Normal Operation - Vehicles Equipped With 4R75E Transmission

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The digital transmission range (TR) sensor receives voltage from the central junction box (CJB) fuse 12 (15A) through circuit 296 (WH/VT). When the transmission is placed in REVERSE (R), the digital TR sensor routes voltage to the reversing lamps through circuit 140 (BK/PK). The reversing lamps share a common ground through circuit 57 (BK).