MKT AWD V6-3.5L Turbo (2010)
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Trailer tow relay
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Trailer
PINPOINT TEST AD: THE TRAILER LAMPS ARE ON CONTINUOUSLY
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the
connector.
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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AD1 CHECK FOR VOLTAGE AT THE TRAILER TOW CONNECTOR
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Ignition ON.
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Measure the voltage between the trailer tow 4-pin connector, harness side and ground as follows:
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Is any voltage present?
Yes
GO to AD2.
No
The vehicle is operating correctly. SEND the trailer to an authorized camper/trailer repair facility.
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AD2 CHECK THE SUSPECT RELAY
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Ignition OFF.
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Disconnect: Suspect Trailer Tow Relay.
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Ignition ON.
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Measure the voltage between the trailer tow 4-pin connector, harness side and ground as follows: