Flex AWD V6-3.5L (2009)
NOTE: Before beginning diagnostics, visually inspect the trailer tow connector mounted on the bumper for signs of corrosion or damage. Repair or
install a new trailer tow connector as required.
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AC1 CHECK FOR VOLTAGE AT THE TRAILER TOW CONNECTOR
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Ignition ON.
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For the LH trailer stop/turn lamp, measure the voltage between the trailer tow connector LH stop/turn lamp voltage supply pins, circuit CAT06
(YE), component side and ground.
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For the RH trailer stop/turn lamp, measure the voltage between the trailer tow connector RH stop/turn lamp voltage supply pins, circuit CAT09
(GN), component side and ground.
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For the trailer parking lamps, measure the voltage between the trailer tow connector parking lamp voltage supply pins, circuit CAT11 (BN),
component side and ground.
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Is any voltage present?
Yes
GO to AC2.
No
The vehicle is operating correctly. SEND the trailer to an authorized camper/trailer repair facility.
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AC2 CHECK THE SUSPECT RELAY
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Ignition OFF.
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Disconnect: Suspect Trailer Tow Relay.
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Carry out the component test for the suspect trailer tow relay.
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Is the trailer tow relay OK?
Yes
REPAIR circuit CAT06 (YE) (LH turn), circuit CAT09 (GN) (RH turn), or circuit CAT11 (BN) (parking lamps) for a short to voltage. TEST the system
for normal operation.
No
INSTALL a new trailer tow relay in question. TEST the system for normal operation.
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Pinpoint Test AD: The Trailer Battery Charging Is Inoperative/Does Not Operate Correctly
