Grand Marquis V8-4.6L VIN V Flex Fuel (2006)
Normal Operation
The PCM communicates with the diagnostic tool through the controller area network (CAN), circuits 1827 (WH/LG) and 1828 (PK/LG). Check the
CAN circuits between the PCM C175b 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 either an open in the CAN circuits, damage to the DLC C251, damage to the PCM C175b, or a problem in the
in-line connector.
Possible Causes
-
CAN data plus circuit 1827 (WH/LG) open
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CAN data minus circuit 1828 (PK/LG) open
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PCM C175b
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PCM
Test C: The Driver Door Module (DDM) Does Not Respond To The Diagnostic Tool
PINPOINT TEST C: THE DRIVER DOOR MODULE (DDM) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL
