Escape 2WD V6-3.0L (2009)
The trailer tow LH stop/turn relay coil receives voltage through circuit CLS18 (GY/BN) when the vehicle LH rear stoplamp is illuminated. When the
trailer tow LH stop/turn relay is energized, voltage is routed to the trailer tow connector through circuit CAT06 (YE).
The trailer tow RH stop/turn relay coil receives voltage through circuit CLS19 (VT/OG) when the vehicle RH rear stoplamp is illuminated. When the
trailer tow RH stop/turn relay is energized, voltage is routed to the trailer tow connector through circuit CAT09 (GN).
Trailer Tow Parking
The trailer tow parking lamp relay coil receives voltage through circuit CLS30 (VT/WH) when the vehicle parking lamps are illuminated. When the
trailer tow parking lamp relay is energized, voltage is routed to the trailer tow connector through circuit CAT11 (BN).
This pinpoint test is intended to diagnose the following:
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Wiring, terminals or connectors
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Trailer tow relay
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Trailer
PINPOINT TEST AB: THE TRAILER LAMPS ARE ON CONTINUOUSLY
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AB1 CHECK FOR VOLTAGE AT THE TRAILER TOW CONNECTOR
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Ignition OFF.
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Disconnect: Trailer Tow C439.
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Ignition ON.
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Measure the voltage the between trailer tow connector, harness side and ground as follows:
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Is any voltage present?
Yes
GO to AB2.
No
The vehicle is operating correctly. SEND the trailer to an authorized camper/trailer repair facility.
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AB2 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
