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Home >> Ford >> 2014 >> Flex SEL, FWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Seat System - Seats >> Diagnosis And Testing >> Seating >> Pinpoint Tests >> Pinpoint Test T: The Heated Seats are Inoperative - Rear >> Normal Operation

Normal Operation

When ignition voltage is supplied and the driver or passenger heated seat button on the auxiliary climate control assembly is pressed, a momentary ground signal is sent to the heated seat module to command the system on or off. Upon receiving a signal, the heated seat module decreases one setting (the sequence is high, low, off, high). The heated seat module monitors temperature sensors contained within the cushion heater mats on the left and right rear seats. The temperature sensors share a common return circuit to the heated seat module. If the temperature sensor return circuit opens (resistance greater than 300, 000 ohms), the heated seat module disables the outputs to both seats. The system remains disabled until the circuit is repaired and the heated seat module is reset by cycling the ignition OFF and ON.

This pinpoint test is intended to diagnose the following: 

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