Mariner 4WD V6-3.0L (2010)
Yes
GO to Z5.
No
VERIFY the BJB fuse 14 (15A) is OK. If OK, REPAIR circuit SBB14 (BN/RD) for an open. TEST the system for normal operation. 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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Z5 CHECK FOR VOLTAGE TO THE TRAILER TOW STOP/TURN RELAY USING THE RELAY GROUND
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For the LH trailer stop/turn lamp, measure the voltage between the trailer tow LH turn relay pin 3, circuit SBB14 (BN/RD), BJB face side and the
trailer tow LH turn relay pin 1, circuit GD120 (BK/GN), BJB face side.
-
For the RH trailer stop/turn lamp, measure the voltage between the trailer tow LH turn relay pin 3, circuit SBB14 (BN/RD), BJB face side and the
trailer tow LH turn relay pin 1, circuit GD120 (BK/GN), BJB face side.
-
Is the voltage greater than 10 volts?
Yes
REPAIR circuit CAT06 (YE) (LH trailer stop/turn) or circuit CAT09 (GN) (RH trailer stop/turn) for an open. TEST the system for normal operation.
No
REPAIR circuit GD120 (BK/GN) for an open. TEST the system for normal operation.
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Pinpoint Test AA: The Trailer Parking Lamps Are Inoperative
Trailer Lamps
Pinpoint Tests
Pinpoint Test AA: The Trailer Parking Lamps Are Inoperative
Refer to Wiring Diagram Set 95 (Escape/Mariner, Escape Hybrid/Mariner Hybrid), Trailer/Camper Adapter for schematic and connector information.
See: Diagrams/Electrical Diagrams/Diagrams By Number
Normal Operation
The trailer tow parking lamp relay coil receives voltage when the vehicle parking lamps are illuminated. The Battery Junction Box (BJB) fuse 8 (20A)
supplies voltage to the trailer tow parking lamp relay switch side. When the trailer tow parking lamp relay is energized, the voltage is routed to the trailer
