Grand Marquis V8-4.6L VIN V Flex Fuel (2006)
Normal Operation
The air suspension module communicates with the diagnostic tool through the standard corporate protocol (SCP) communication network, circuits 914
(TN/OG) and 915 (PK/LB). Check the SCP circuits 914 (TN/OG) and 915 (PK/LB) between the air suspension module C2131b 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 the SCP
network circuits, damage to the DLC C251, the air suspension module C2131b, or a problem in the in-line connectors.
Possible Causes
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SCP data plus circuit 914 (TN/OG) open
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SCP data minus circuit 915 (PK/LB) open
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air suspension module C2131b
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air suspension module
Test G: The Variable Assist Power Steering (VAPS) Module Does Not Respond To The Diagnostic
Tool
PINPOINT TEST G: THE VARIABLE ASSIST POWER STEERING (VAPS) MODULE DOES NOT RESPOND TO THE DIAGNOSTIC
TOOL
