Door control module: Difference between revisions
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[[File:W220_EPC_Switch_in_front_door_lining.png|400px]] | [[File:W220_EPC_Switch_in_front_door_lining.png|400px]] | ||
[[File:W220_EPC_Switch_in_rear_door_trim.png|400px]] | [[File:W220_EPC_Switch_in_rear_door_trim.png|400px]] | ||
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When looking for part in catalogs, you may need to add color code to end of the part number (e.g., A2208210658'''7C45'''). | When looking for part in catalogs, you may need to add color code to end of the part number (e.g., A2208210658'''7C45'''). | ||
= Functionality = | |||
The door control module in itself is a pretty dumb device. All key presses are sent over CANBUS to SAM. SAM then broadcasts message to all modules and module which understands the message acts appropriately (whether lighting up some bulb, engaging seat heating, moving seat, etc.). | The door control module in itself is a pretty dumb device. All key presses are sent over CANBUS to SAM. SAM then broadcasts message to all modules and module which understands the message acts appropriately (whether lighting up some bulb, engaging seat heating, moving seat, etc.). | ||
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Power for driver side front DCM is controlled by fuse X. | Power for driver side front DCM is controlled by fuse X. | ||
= Location = | |||
In door panel hold by plastic clips. | In door panel hold by plastic clips. | ||
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|} | |} | ||
= Connectors = | |||
[[File:W220_door_control_module_connected.jpg|thumb|none|Front left door control module connected.]] | [[File:W220_door_control_module_connected.jpg|thumb|none|Front left door control module connected.]] | ||
= Seat ventilation = | |||
Seat ventilation functionality does not depend on DCM. Appropriate buttons are not part of DCM and can be bought separately. | Seat ventilation functionality does not depend on DCM. Appropriate buttons are not part of DCM and can be bought separately. | ||
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</gallery> | </gallery> | ||
= Memory seats = | |||
Memory seat function is determined by DCM itself. Even more, by controls board. | Memory seat function is determined by DCM itself. Even more, by controls board. | ||
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= Using right hand drive DCM in left hand drive vehicle = | |||
It has been tested that RHD DCM A2208212179 installed on left side of LHD vehicle originally equipped with A2208214179 will work fine, however, the mirror controlling switch will not work and window controlling switch will be able open only driver's door window. Similarly, RHD DCM A2208211879 installed on left side of LHD vehicle originally equipped with A2208214979 will work fine, however, the window opening switch will open left side driver's door window. | It has been tested that RHD DCM A2208212179 installed on left side of LHD vehicle originally equipped with A2208214179 will work fine, however, the mirror controlling switch will not work and window controlling switch will be able open only driver's door window. Similarly, RHD DCM A2208211879 installed on left side of LHD vehicle originally equipped with A2208214979 will work fine, however, the window opening switch will open left side driver's door window. | ||
= Using left DCM on the right side = | |||
The physical location of DCM is programmed into DCM. E.g., if left DCM is connected to right side, the DCM will still move left seat. | The physical location of DCM is programmed into DCM. E.g., if left DCM is connected to right side, the DCM will still move left seat. | ||
= Using pre-facelift DCM in facelift vehicle = | |||
Has not been tested. | Has not been tested. | ||
Revision as of 20:14, 3 February 2015
Door control module (in WIS) or Electric Seat Adjuster Switch (in EPC) is electrical part responsible for several tasks. When looking for part in catalogs, you may need to add color code to end of the part number (e.g., A22082106587C45).
Functionality
The door control module in itself is a pretty dumb device. All key presses are sent over CANBUS to SAM. SAM then broadcasts message to all modules and module which understands the message acts appropriately (whether lighting up some bulb, engaging seat heating, moving seat, etc.).
DCM is responsible for:
- External mirror:
- Lighting up mirror turn signal light
- Lighting up mirror courtesy light
- Mirror heating
- Mirror angle altering
- Mirror fold-in
- Receiving signal from infrared receiver
- Engaging door power close
- Opening door window
- Receiving signal from window control switch
- receiving signal from trunk open switch
- Receiving signal from mirror control switch
- Powering door handle LED
- Powering door courtesy light
- Receiving signal from seat regulation switch
Power for driver side front DCM is controlled by fuse X.
Location
In door panel hold by plastic clips.
 |
 |
Connectors
Seat ventilation
Seat ventilation functionality does not depend on DCM. Appropriate buttons are not part of DCM and can be bought separately.
 |
 |
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A2208210358 -- Heated seat button for left DCMs.
-
A2208210458 -- Heated seat button for right DCMs.
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A2208210558 -- Heated and ventilated seat button for left DCMs.
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A2208210658 -- Heated and ventilated seat button for right DCMs.
Memory seats
Memory seat function is determined by DCM itself. Even more, by controls board.
It has been tested that vehicle originally equipped with DCM A2208214179 in drivers doors can be replaced with DCM A2208211579 and memory seats will work out of the box. To mount DCM with memory buttons appropriate door panel with holes for memory buttons must be mounted. Alternatively, if memory functionality is not needed, one can replace front control board connected by wire with control board from A2208214179.
Using right hand drive DCM in left hand drive vehicle
It has been tested that RHD DCM A2208212179 installed on left side of LHD vehicle originally equipped with A2208214179 will work fine, however, the mirror controlling switch will not work and window controlling switch will be able open only driver's door window. Similarly, RHD DCM A2208211879 installed on left side of LHD vehicle originally equipped with A2208214979 will work fine, however, the window opening switch will open left side driver's door window.
Using left DCM on the right side
The physical location of DCM is programmed into DCM. E.g., if left DCM is connected to right side, the DCM will still move left seat.
Using pre-facelift DCM in facelift vehicle
Has not been tested.
List of door control modules
Facelift (from 30/09/2002)
Front Left
| Part No. | Front | Back | Controls board | Board side A | Board side B |
|---|---|---|---|---|---|
| A2208214179 (left hand drive vehicles) | 
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| A2208211579 (left hand drive vehicles) | 
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| A2208214479 (right hand drive vehicles) | 
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| A2208212179 (right hand drive vehicles) | 
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Front Right
| Part No. | Front | Back | Controls board | Board side A | Board side B |
|---|---|---|---|---|---|
| A2208214979 (left hand drive vehicles) | 
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| A2208211679 (left hand drive vehicles) | 
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| A2208215079 (right hand drive vehicles) | |||||
| A2208211879 (right hand drive vehices) | 
|
|
Rear Left
| Part No. | Front | Back | Controls board | Board side A | Board side B |
|---|---|---|---|---|---|
| A2208216279 | 
|
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| A2208215779 | 
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| A2208212379 | 
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| A2208212779 (right hand drive vehicles) | 
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Rear Right
| Part No. | Front | Back | Controls board | Board side A | Board side B |
|---|---|---|---|---|---|
| A2208216879 | 
|
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| A2208216379 | 
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| A2208212479 | 
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| A2208212879 (left hand drive vehicles) | 
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Pre-facelift (to 01/09/2002)
Front Left
| Part No. | Front | Back | Controls board | Board side A | Board side B |
|---|---|---|---|---|---|
| A2208208710 (left hand drive vehicles, to date 29/07/1999, replaced by A2208218751) | 
|
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| A2208218751 (left hand drive vehicles, to date 30/06/2011) | 
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| A2208212958 (left hand drive vehicles, from date 30/06/2001 to date 01/09/2002) | |||||
| A2208200110 (left hand drive vehicles, to date 29/07/1999, replaced by A2208219351) | 
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| A2208219351 (left hand drive vehicles, to date 30/06/2001) | 
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| A2208213358 (left hand drive vehicles, from date 30/06/2001 to date 01/09/2002) | 
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| A2208208910 (right hand drive vehicles, to date 30/06/2001, replaced by A2208219151) | 
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| A2208219151 (right hand drive vehicles, to date 30/06/2001) | 
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| A2208213158 (right hand drive vehicles, from date 30/06/2001 to date 01/09/2002) | 
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| A2208202610 (right hand drive vehicles, to date 30/06/2001, replaced by A2208219751) | 
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| A2208219751 (right hand drive vehicles, to date 30/06/2001) | 
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| A2208213758 (right hand drive vehicles, from date 30/06/2001 to date 01/09/2002) | 
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Front Right
| Part No. | Front | Back | Controls board | Board side A | Board side B |
|---|---|---|---|---|---|
| A2208208810 (left hand drive vehicles, to date 30/06/2001, replaced by A2208219251) | 
|
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| A2208219251 (left hand drive vehicles, to date 30/06/2001) | 
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| A2208213258 (left hand drive vehicles, from date 30/06/2001 to date 01/09/2002) | 
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| A2208200110 (left hand drive vehicles, to date 30/06/2011, replaced by A2208219851) | 
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| A2208219851 (left hand drive vehicles, to date 30/06/2011) | 
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| A2208213858 (left hand drive vehicles, from date 30/06/2001 to date 01/09/2002) | 
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| A2208209010 (right hand drive vehicles, to date 29/06/1999, replaced by A2208218851) | 
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| A2208218851 (right hand drive vehicles, to date 01/09/2002) | 
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| A2208202710 (right hand drive vehicles, to date 30/06/2011, replaced by A2208219451) | 
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| A2208219451 (right hand drive vehicles, to date 30/06/2011) | 
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| A2208213458 (right hand drive vehicles, from date 30/06/2001 to date 01/09/2002) | 
|
|
Rear Left
| Part No. | Front | Back | Controls board | Board side A | Board side B |
|---|---|---|---|---|---|
| A2208214351 (to date 30/06/2001, replaced by A2208211558) | 
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| A2208211558 (to date 30/06/2001, replaced by A2208214958) | 
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| A2208214958 | 
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| A2208203310 (to date 30/06/2011, replaced by A2208210958) | 
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| A2208210958 (to date 30/06/2011, replaced by A2208214758) | 
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| A2208214758 | 
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| A2208200310 (to date 30/06/2011, replaced by A2208211358) | 
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| A2208211358 (to date 30/06/2011, replaced by A2208215158) | 
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| A2208215158 | 
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| A2208214551 (right hand drive vehicles, replaced by A2208218351) | 
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| A2208218351 (right hand drive vehicles, replaced by A2208215558) | 
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| A2208215558 (right hand drive vehicles) | 
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Rear Right
| Part No. | Front | Back | Controls board | Board side A | Board side B |
|---|---|---|---|---|---|
| A2208214451 (to 30/06/2001, replaced by A2208211658) | 
|
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| A2208211658 (to 30/06/2001, replaced by A2208215058) | 
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| A2208215058 | 
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| A2208203410 (to 30/06/2001, replaced by A2208211058) | 
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| A2208211058 (to 30/06/2001, replaced by A2208214858) | 
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| A2208214858 | 
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| A2208200410 (to 30/06/2001, replaced by A2208211458) | 
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| A2208211458 (to 30/06/2001, replaced by A2208215258) | 
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| A2208215258 | 
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| A2208214651 (left hand drive vehicles, replaced by A2208218451) | 
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| A2208218451 (left hand drive vehicles, replaced by A2208215658) | 
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| A2208215658 (left hand drive vehicles) | 
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Resources
Making your own DCM control buttons: http://www.benzworld.org/forums/w220-s-class/1624796-seeking-rh-headrest-adjuster-button.html