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2023 Edge Heat seats and steering wheel


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just got  a new 2023 edge for about a month now... heated seats and steering wheel are activated every time I start the car  even when the ambient is 60F . 
Turning these off several times a day has become annoying with the controls on the touchscreen panel,,, and the heated seat always comes on at max and it nearly burns me after 5 minutes >

Is there any way to disable this behavior based on ambient temperature?? or is this defective behavior?

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Welcome to the Forum!

 

It's not clear from your post if you are describing the Heated Steering Wheel and Heated Seats in a default ON condition only when using Remote Start, or, if they are immediately ON after starting your Edge using the Push Button Start on your Edge's dash.

 

If your new Edge was delivered with only the HTML Owner's Manual that's viewable on the Touchscreen panel, you can obtain a PDF version by clicking the following link...

2023 Ford Edge Owner's Manual, Version 1 (Direct download).

 

From the HTML Owner's Manual, vehicle settings which affect the behavior of Climate Control system, Heated Seats, Heated Steering Wheel, and Duration of Remote Start when using the Intelligent Access (IA) key fob or FordPass to remotely start the vehicle...

 

 

Ford Logo

Remote Start (If Equipped) - Remote Start Settings

REMOTE START SETTINGS

Switching Climate Control Auto Mode On and Off
  1. Using the instrument cluster display controls on the steering wheel, select Settings.
  1. Select Vehicle.
  1. Select Remote Start.
  1. Select Climate Control.
  1. Select Auto or Last settings.
Note:   If you switch the auto mode on, the system attempts to heat or cool the interior to 72°F (22°C). When you switch the vehicle on, the climate control system returns to the last used settings.
Note:   If you switch the last settings on, the system remembers the last used settings.
 
Heated Seat Settings
  1. Using the instrument cluster display controls on the steering wheel, select Settings.
  1. Select Vehicle.
  1. Select Remote Start.
  1. Select Seats.
  1. Select Auto or Off.
Note:   If you switch the heated seat settings on, the heated seats turn on during cold weather.
Note:   You cannot adjust the heated seat settings when you remotely start your vehicle.
 
Heated Steering Wheel Settings
  1. Using the instrument cluster display controls on the steering wheel, select Settings.
  1. Select Vehicle.
  1. Select Remote Start.
  1. Select Seats and Wheel.
  1. Select Auto or Off.
Note:   If you switch the heated steering wheel settings on, the heated steering wheel turns on during cold weather.
Note:   You cannot adjust the heated steering wheel settings when you remotely start your vehicle.
 
Remote Start Duration
  1. Using the instrument cluster display controls on the steering wheel, select Settings.
  1. Select Vehicle.
  1. Select Remote Start.
  1. Select Duration.
  1. Press the duration you prefer.

2023 Edge Owner's Manual

 

 

 

The 2023 Edge Workshop Manual offers the following on the operation of Heated Seats and the Heated Steering, including their normal operating temperatures and the affect External Ambient Temperature has upon their operation after Remote Starting the vehicle.

 

Placing your device cursor over acronyms underlined with dots will yield popup full-word descriptions of the acronym...

 

 

System Operation and Component Description

 

image.png.ede1f56c18438c067c5e06527dd0a106.png

  HVAC Module Network Input Messages

 

Broadcast Message Originating Module Message Purpose
Heated seat request  APIM The heated seat request message allows the HVAC module to activate the heated seat(s) selected.


 

  APIM Network Input Messages

 

Broadcast Message Originating Module Message Purpose
Heated seat request HVAC Module The HVAC module provides this message to the APIM for the purpose of updating the displayed status of the heated seat buttons on the touchscreen.



System Diagram - Climate Controlled Seats

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Network Message Chart - Climate Controlled Seats

 

  SCME Network Input Messages

 

Broadcast Message Originating Module Message Purpose
Climate control requests  APIM The climate control requests message contains the climate controlled seat request information.

 

Heated Seat Operation

The driver and passenger heated seat buttons are selected from the touchscreen. The heated seat system functions independently of the vehicle's climate control system. Each time the heated seat button is pressed, the system decreases one setting (the sequence is high, med, low, off, high, etc.).

 

When activated, the HVAC module supplies voltage to the selected seat heater circuit. Each seat cushion heater mat and backrest heater mat is connected in a series circuit to the HVAC module and powered by the output circuit for that seat. The HVAC module monitors inputs from a temperature sensor located in each seat cushion heater mat, and maintains seat temperature by cycling the heater circuits on/off. The heated seat remains ON until the heated seat switch button is pressed to cycle the system OFF or the ignition is set to OFF.

 

If a fault is detected by the HVAC module, the module stops supplying voltage to that individual left or right seat that the fault was detected on until the ignition is turned OFF and then ON.

 

Climate Controlled Seat Operation

The driver and passenger climate controlled seat buttons are selected from the touchscreen. The climate controlled seat system functions independently from the vehicle's climate control system.

 

The seat cushion and backrest are each equipped with a blower motor assembly. As cabin air is drawn through each blower motor, a Thermo-Electric Device (TED) heats or cools the air, which is then directed into the foam pad where it is distributed along the surface of the cushion and backrest of the seat. Once the system is activated, the SCME uses a set of flexible algorithms to control the heating/cooling modes and the blower speed dependant on the commanded climate controlled seat settings.

 

The SCME monitors seat cushion temperature while it supplies voltage and ground to both blower motors. The SCME also supplies a variable voltage signal to control the blower speed. Cabin air enters the blower through an integrated filter attached to the blower motor housing. Heated or cooled air exits the blower motor and flows through the foam pad.

 

Climate Controlled Seat Heating Characteristics

  • The system control settings are indicated next to each climate controlled seat heat switch button. The first setting is HIGH (3 indicators), the second setting is MED (2 indicators) and the third is LOW (1 indicator) then OFF (no indicators).
  • When heating, the SCME varies the speed of the blower motors and the duty cycle of the integral Thermo-Electric Device (TED) in order to reach and maintain the desired temperature determined by the system control settings.

Climate Controlled Seat Cooling Characteristics

  • The system control settings are based on the 3 indicators next to each climate controlled seat cool switch button. The first setting is HIGH (3 indicators), the second setting is MED (2 indicators) and the third is LOW (1 indicator) then OFF (no indicators).
  • When cooling, the SCME maintains a constant blower motor speed and a constant Thermo-Electric Device (TED) supply voltage (duty cycle is determined by the switch setting) in COOL mode.

Climate Controlled Seat Recovery Mode

NOTE: The presence of overtemperature faults (Diagnostic Trouble Codes (DTCs) B1153:4B, B1154:4B, B1151:4B and B1152:4B) can be induced by incorrectly operating the climate controlled seat system after an initial heat setting has been attained. If a heat setting is repeatedly turned off and on in an attempt to increase the seat temperature or repeatedly toggled between heat and cool modes, an overtemperature condition can result and the Diagnostic Trouble Codes (DTCs) may be set.

 

If the temperature of one of the blower motors rises above 110° C (229.8° F) in the heat mode or 65° C (149° F) in the cool mode for more than 4 seconds, the SCME records an overtemperature DTC , removes voltage from the Thermo-Electric Devices (TEDs) (part of the blower motor assembly) and goes into recovery mode (blower only) for 30 seconds to cool down the blower motor. The same occurs if a temperature difference of 60° C (140° F) or greater is detected between the backrest and cushion blower motors on either front seat.

 

The SCME continues to monitor the blower motors while in recovery mode. If the temperature of the Thermo-Electric Devices (TEDs) do not drop to 105° C (220.8° F) in the heat mode or 60° C (140° F) in the cool mode after 30 seconds, the system continues to cool the blower motors in recovery mode for up to 5 minutes. If the Thermo-Electric Devices (TEDs) cool down after 30 seconds, but before 5 minutes (checked at 4 second intervals), the system is operating normally. An overtemperature DTC is still recorded even if the system recovers and is operating normally. This is more likely to occur during extreme cabin temperatures with significant seat back sun load. If the system does not recover within 30 seconds in heat mode or within 5 minutes in cool mode, the SCME disables that seat (fault mode) and remains off until the ignition is cycled. Also, if the SCME detects a temperature differential fault twice during the same ignition cycle, the SCME disables the seat. When a fault causes a shutdown, the climate controlled seat indicators turn off and that seat is not operational until the next ignition cycle.

 

Remote Start Climate Operation

Different climate control modes/preferences can be selected when the vehicle is started using the remote start feature. This can be accessed through the message center. For additional information on how to set the remote start preferences, refer to the Owner's Literature. When the driver seat and/or passenger seat is set to AUTO mode, the driver/passenger heated/climate controlled seat activates in full heat mode when the outside temperature is less than 0° C (32° F) and full cool mode (climate controlled seats only) when outside temperature is greater than 27° C (80° F) any time the vehicle is started using the remote start feature. No heated/climate controlled seat adjustments are recognized during remote start operation. Once the ignition is cycled ON, the heated/climate controlled seat turns off.

 

System Diagram - Heated Steering Wheel

imagen2.dll?id=E200804_EN&w=580&t=JPG

Network Message Chart - Heated Steering Wheel

 

  HSWM Network Input Messages

 

Broadcast Message Originating Module Message Purpose
Engine power status  PCM This message indicates to the HSWM whether the engine is running.
Ignition status  BCM Indicates which ignition mode is active.
Steering wheel heat request  FCIM Message is used to activate the heated steering wheel function when the touchscreen button is pressed on the FDIM , or when the conditions are met to activate the heated steering wheel (and heated seats) during a remote start.


 

  FCIM Module Network Input Messages

 

Broadcast Message Originating Module Message Purpose
Heated steering wheel command status  APIM This message informs the FCIM that the heated steering wheel touchscreen button was pressed on the FDIM .
Ambient exterior temperature data  IPC This message is used by the FCIM when determining if outside conditions are cold enough to request the heated steering wheel be activated during remote start operation.



Heated Steering Wheel

When the engine is running and the HSWM receives a request to heat the steering wheel, the HSWM applies voltage and ground to the steering wheel heating elements (integral to the steering wheel) to heat the steering wheel to a temperature of approximately 28-34°C (82-94°F). The heated steering wheel temperature is maintained by the HSWM using a temperature sensor in the steering wheel.

 

The HSWM is designed to remain on, heating the steering wheel and maintaining the temperature until switched off on the FDIM or the ignition is turned off.

 

The controls and indicators for the heated steering wheel system are located on the FDIM (touchscreen) only. The FDIM does not communicate on any network and is connected directly to the APIM .

 

Remote Start System

The heated steering wheel system (along with the heated front seats) may be configured using the message center to activate when the remote start feature is used, based on outside air temperature. During remote start, the outside air temperature is continually monitored by the HVAC system. The heated steering wheel system activation changes if the outside air changes from cold to moderate or warm temperatures or back from moderate or warm to cold temperatures.

 

Good luck!

Edited by Haz
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