Explorer AWD V8-4.6L (2010)
INSTALL a new TBC module. TEST the system for normal operation.
No
REPAIR circuit CAT19 (BU) for an open. TEST the system for normal operation.
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AD8 CHECK FOR VOLTAGE TO THE TRAILER TOW CONNECTOR (DOES NOT OPERATE CORRECTLY)
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With the brake pedal released, measure the voltage between the trailer tow connector pin 3, circuit CAT19 (BU), component side and ground.
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Is any voltage present?
Yes
GO to AD9.
No
The vehicle is operating correctly. SEND the trailer to an authorized camper/trailer repair facility.
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AD9 CHECK THE TBC MODULE OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
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Disconnect: TBC Module C238.
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Measure the voltage between the trailer tow connector pin 3, circuit CAT19 (BU), component side and ground.
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Is any voltage present?
Yes
REPAIR circuit CAT19 (BU) for a short to voltage. TEST the system for normal operation.
No
INSTALL a new TBC module. TEST the system for normal operation.
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