Flex FWD V6-3.5L (2010)
VERIFY the BJB fuse 38 (10A) is OK. If OK, GO to AB2. If not OK, REFER to the Wiring Diagrams to identify the possible causes of the circuit short.
See: Diagrams/Electrical Diagrams/Diagrams By Number
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AB2 CHECK FOR VOLTAGE TO THE TRAILER TOW CONNECTOR
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Disconnect: Trailer Tow C4099.
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Apply the parking brake.
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Ignition ON.
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Select REVERSE.
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Measure the voltage between the trailer tow C4099-7, circuit CAT03 (GY/BN), harness side and ground.
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Is the voltage greater than 10 volts?
Yes
INSTALL a new trailer tow connector. TEST the system for normal operation.
No
GO to AB3.
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AB3 CHECK FOR VOLTAGE TO THE BJB FUSE 38 (10A)
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Measure the voltage between the BJB fuse 38 (10A), input side, circuit CLS10 (GY/BN) and ground.
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Is the voltage greater than 10 volts?
Yes
REPAIR circuit CAT03 (GY/BN) for an open. TEST the system for normal operation.
No
REPAIR circuit CLS10 (GY/BN) for an open. TEST the system for normal operation.
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Pinpoint Test AC: The Trailer Lamps Are On Continuously
Trailer Lamps
Pinpoint Tests