Mountaineer AWD V8-4.6L (2010)
harness side.
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Is the resistance less than 5 ohms?
Yes
GO to Y4.
No
REPAIR circuit CAT16 (GY/BN) for an open. TEST the system for normal operation.
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Y4 CHECK FOR CORRECT SJB OPERATION
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Disconnect all the SJB connectors.
-
Check for:
-
corrosion
-
damaged pins
-
pushed-out pins
-
Connect all the SJB connectors and make sure they seat correctly.
-
Operate the system and verify the concern is still present.
-
Is the concern still present?
Yes
INSTALL a new SJB. REFER to Body Control Systems. TEST the system for normal operation.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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Pinpoint Test Z: The Trailer LH Stop/Turn Lamp Is Inoperative
Trailer Lamps
Pinpoint Tests
Pinpoint Test Z: The Trailer LH Stop/Turn Lamp Is Inoperative
Refer to Wiring Diagram Set 95, Trailer/Camper Adapter for schematic and connector information. See: Diagrams/Electrical Diagrams/Diagrams By
Number
Normal Operation
Voltage to the LH trailer stop/turn lamp is supplied by the Smart Junction Box (SJB) to the trailer tow connector for the LH trailer stop/turn lamp.
-
DTC B2070 (Trailer Tow Relay Coil(s) Circuit Failure) - a continuous DTC that sets when the SJB detects a short to ground from the LH trailer
stop/turn lamp voltage supply circuit. The self-test must be run after the repair in order for the SJB to enable the output for the LH trailer stop/turn
lamp voltage supply. A trailer equipped with too many LH stop/turn bulbs may also set the DTC.
This pinpoint test is intended to diagnose the following:
-
Trailer equipped with too many bulbs
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Wiring, terminals or connectors
