Navigator 4WD V8-5.4L VIN 5 (2006)
G3-G4
Normal Operation
The Navigator parking aid module communicates with the diagnostic tool through the medium speed controller area network (CAN), circuits 2180
(WH/BK) and 2181 (BK/YE). The Expedition parking aid module communicates with the diagnostic tool through the international standards
organization (ISO) 9141 communications network, circuit 70 (LB/WH). Check the communication circuits between the parking aid module C4226
(Expedition) or C4014b (Navigator) 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 communication network circuits, damage to the DLC C251, damage to the parking aid
module connectors, or a problem in an in-line connector.
Possible Causes
-
ISO 9141 circuit 70 (LB/WH) open (Expedition only)
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medium speed CAN circuit 2180 (WH/BK) open (Navigator only)
-
medium speed CAN circuit 2181 (BK/YE) open (Navigator only)
-
parking aid module
-
parking aid module C4226 (Expedition) or C4014b (Navigator)
Test H: The Transmission Control Module (TCM) Does Not Respond To The Diagnostic Tool
PINPOINT TEST H: THE TRANSMISSION CONTROL MODULE (TCM) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL
