Component Description

WARNING: This page is about a different car, the 2015 Ford C-Max. However, it is still accessible from the selected car via links, so may be relevant.

Seat Control Switch

The driver seat control switch contains normally closed contacts (which are grounded). When a specific adjustment position is selected, an individual circuit is switched to voltage.

Front Seat Track

There are 3 front seat track bi-directional motors present on power seat tracks. The horizontal (fore/aft) front seat track motor is the only seat track motor which can be serviced separately from the seat track assembly. All other seat track motors (front height, rear height) are serviced as part of the seat track assembly. The seat track motors move the power seat forward/backward and up/down depending on the polarity of voltage supplied from the seat control switch.

Front Seat Backrest

The front seat backrest contains a bi-directional motor which is integral to the seat backrest assembly. The seat backrest motor moves the seat backrest forward/backward depending on the polarity of voltage supplied from the seat control switch.

Lumbar Motor

The lumbar motor is a bi-directional motor which is integral to the driver seat lumbar assembly. The lumbar motor moves the seat backrest pad forward/backward depending on the polarity of voltage supplied from the seat control switch.

Heated Seat Switch

The heated seat switch contains two 6-position rotary (potentiometer) switches (one for the driver side and the other for the passenger side). The heated seat switch supplies a voltage signal to the corresponding driver or passenger heated seat module based upon the selected switch positions.

Heated Seat Module

When commanded by the heated seat switch, the driver/passenger heated seat module monitors the seat cushion temperature sensor and supplies heater current to the seat cushion and backrest heater mats until the desired setpoint temperature is reached. Once the setpoint temperature is reached, the heated seat module cycles the heater circuits on/off as required to maintain the setpoint temperature.

Heater Mat

The seat cushion heater mat is equipped with a temperature sensor (thermistor) which provides feedback to the heated seat module. The backrest heater mat can be serviced separately from the cushion heater mat. The cushion and backrest heater mats are connected in series.