ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

Initial Inspection and Diagnostic Overview|Page 11666 > < Initial Inspection and Diagnostic Overview|Page 11664
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Y3-Y5

Normal Operation

The trailer tow LH turn relay coil receives voltage through circuit 9 (LG/OG) when the vehicle LH rear lamp is illuminated. The trailer tow LH turn
relay coil is grounded through circuit 57 (BK). The battery junction box (BJB) fuse 9 (20A) supplies voltage to the trailer tow LH turn relay through
circuit 1362 (DG/OG). When the trailer tow LH turn relay is energized, the voltage is routed to the trailer tow connector through circuit 52 (YE).

Possible Causes

-

Fuse

-

Circuit 9 (LG/OG) open

-

Circuit 52 (YE) open

-

Circuit 57 (BK) open

Initial Inspection and Diagnostic Overview|Page 11666 > < Initial Inspection and Diagnostic Overview|Page 11664