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Pinpoint Test P : The Power Lumbar Is Inoperative - Passenger: Notes

WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.

Refer to Power Seats , for schematic and connector information.

Normal Operation 

The seat control switch contains the lumbar button and when pressed, supplies battery voltage and ground to the power lumbar motor on circuits CPS18 (BN/GN) and CPS19 (GY/VT) to move the lumbar assembly in the desired direction.

This pinpoint test is intended to diagnose the following: 

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