Expedition 4WD V8-5.4L VIN 5 (2006)
J2-J3
Normal Operation
The power liftgate module communicates with the diagnostic tool through the medium speed controller area network (CAN), circuits 2180 (WH/BK)
and 2181 (BK/YE). Check circuits 2180 (WH/BK) and 2181 (BK/YE) between the power liftgate module C4174d and the data link connector (DLC)
C251. The total resistance values must not be more than 5 ohms. If the resistance is more than 5 ohms there is an open in one of the medium speed
CAN circuits, damage to the DLC C251, damage to the power liftgate module C4174d, or a problem in an in-line connector.
Possible Causes
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medium speed CAN circuit 2180 (WH/BK) open
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medium speed CAN circuit 2181 (BK/YE) open
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power liftgate module
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power liftgate module C4174d
Test K: The Air Suspension Control Module Does Not Respond To The Diagnostic Tool
PINPOINT TEST K: THE AIR SUSPENSION CONTROL MODULE DOES NOT RESPOND TO THE DIAGNOSTIC TOOL