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Home >> Mercury >> 2005 >> Montego Premier, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 286 (Module Communications Network System) >> Diagnosis And Testing >> Communications Network >> Pinpoint Test E: The Parking Aid Module Does Not Respond To The Diagnostic Tool >> Normal Operation
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Normal Operation

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

The parking aid module communicates with the diagnostic tool through the international standards organization (ISO) 9141 communication network circuit 70 (LB/WH). If circuit 70 (LB/WH) becomes open or shorted to ground, communication to that module is not possible. Check circuit 70 (LB/WH) between the parking aid module C4014 and the data link connector (DLC) C251. Total resistance values must not be more than 5 ohms. If the resistance is more than 5 ohms, there is an open in circuit 70 (LB/WH), damage to the DLC C251, damage to the parking aid module C4014, or a problem in an in-line connector.

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