Explorer Sport Trac 4WD V8-4.6L VIN 8 (2007)
AB9
Normal Operation
The trailer electric brake controller is provided voltage at all times by the battery junction box (BJB) fuse 17 (30A) through circuit SBB17 (RD).
Ground for the trailer electric brake controller is provided through circuit GD138 (BK/WH). The trailer electric brake controller receives voltage from
the stoplamp switch through circuit CCB08 (VT/WH) when the brake pedal is applied. When requested, the trailer electric brake controller provides
voltage to the trailer tow connector through circuit CAT19 (BU).
Possible Causes
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Fuse
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Circuit CAT17 (BN) open
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Circuit CAT19 (BU) open, short to ground, or short to voltage
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Circuit CCB08 (VT/WH) open
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Circuit GD138 (BK/WH) open
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Circuit SBB17 (RD) open
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Trailer electric brake controller
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Trailer
