Mountaineer 2WD V8-4.6L (2010)
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Is any voltage present?
Yes
REPAIR circuit CBP12 (GN/WH) for a short to voltage. TEST the system for normal operation.
No
GO to AC12.
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AC12 CHECK FOR CORRECT SJB OPERATION
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Disconnect all the SJB connectors.
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Check for:
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corrosion
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damaged pins
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pushed-out pins
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Connect all the SJB connectors and make sure they seat correctly.
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Operate the system and verify the concern is still present.
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Is the concern still present?
Yes
INSTALL a new SJB. REFER to Body Control Systems. CLEAR any DTCs. REPEAT the self-test.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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Pinpoint Test AD: The Trailer Electric Brakes Are Inoperative/Always Applied
Trailer Lamps
Pinpoint Tests
Pinpoint Test AD: The Trailer Electric Brakes Are Inoperative/Always Applied
Refer to Wiring Diagram Set 95, Trailer/Camper Adapter for schematic and connector information. See: Diagrams/Electrical Diagrams/Diagrams By
Number
Normal Operation
The Trailer Brake Control (TBC) module is provided voltage at all times by the Battery Junction Box (BJB) fuse 17 (30A). The TBC module receives a
voltage signal from the stoplamp switch when the brake pedal is applied. When requested, the TBC module provides voltage to the trailer tow connector.
