Navigator 4WD V8-5.4L VIN 5 (2006)
AC5-AC6
Normal Operation
Voltage for the trailer tow electric brake controller is supplied by the central junction box (CJB) fuse 29 (30A) through circuit 50 (RD). Ground for
the trailer tow electric brake controller coil is supplied through circuit 206 (WH). Voltage input from the stoplamp switch is supplied through circuit
511 (LG). When the parking lamps are on, voltage for the trailer tow electric brake controller illumination is supplied through circuit 14 (BN).
Voltage output from the trailer tow electric brake controller voltage to the trailer is sent through circuit 43 (DB).
Possible Causes
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Fuse
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Circuit 14 (BN) open
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Circuit 43 (DB) open or short to ground
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Circuit 50 (RD) open
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Circuit 206 (WH) open
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Circuit 511 (LG) open
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Trailer tow electric brake controller
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Trailer