Edge AWD V6-3.5L (2009)
Y2 CHECK THE TRAILER TOW GROUND CIRCUIT FOR AN OPEN
-
Disconnect: Negative Battery Cable.
-
Disconnect: Trailer Tow C439.
-
Measure the resistance between the trailer tow C439-4, circuit RAT08 (WH), harness side and ground.
-
Is the resistance less than 5 ohms?
Yes
The vehicle is operating correctly. SEND the trailer to an authorized camper/trailer repair facility.
No
REPAIR circuit RAT08 (WH)/GD149 (BK/GY) for an open. TEST the system for normal operation.
-------------------------------------------------
Pinpoint Test Z: The Trailer Stop/Turn Lamp Is Inoperative
Trailer Lamps
Pinpoint Tests
Pinpoint Test Z: The Trailer Stop/Turn Lamp Is Inoperative
Refer to Wiring Diagram Set 11, Fuse and Relay Information for schematic and connector information. See: Diagrams/Electrical Diagrams/Diagrams By
Number
Refer to Wiring Diagram Set 95, Trailer/Camper Adapter for schematic and connector information. See: Diagrams/Electrical Diagrams/Diagrams By
Number
Normal Operation
The Battery Junction Box (BJB) fuse 24 (15A) supplies voltage to the LH trailer tow stop/turn relay and BJB fuse 46 (15A) supplies voltage to the RH
trailer tow stop/turn relay. The trailer tow stop/turn relay coils are grounded through circuit GD120 (BK/GN).
The trailer tow LH stop/turn relay coil receives voltage from 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).
This pinpoint test is intended to diagnose the following:
-
Fuse
-
Wiring, terminals or connectors
-
Trailer tow stop/turn relay
-
BJB
-
Trailer
PINPOINT TEST Z: THE TRAILER STOP/TURN LAMP IS INOPERATIVE
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the
connector.
-------------------------------------------------
Z1 CHECK FOR VOLTAGE TO THE TRAILER TOW CONNECTOR
-
Ignition OFF.