Wiring diagram for overhead control panel (OCP) control unit - PE54.21-P-2107-97FAA
WARNING: This page is about a different car, the 2012 Mercedes-Benz C300, 2011 Mercedes-Benz C300, 2010 Mercedes-Benz C300, 2009 Mercedes-Benz C300, and 2008 Mercedes-Benz C300. However, it is still accessible from the selected car via links, so may be relevant.
| Code: | Designation: | Position: |
|---|---|---|
| A0 | Color code key | 64L |
| A2 | Radio | 14L |
| A2 | Radio | 22L |
| A2/56 | Radio with auto pilot system | 14L |
| A40/3 | COMAND control unit | 18L |
| A40/3 | COMAND control unit | 26L |
| A67 | Inside rearview mirror | 30L |
| A67 | Inside rearview mirror | 36L |
| A67b1 | Hands-free system microphone | 30K |
| A67e1 | Left reading lamp | 31K |
| A67e2 | Right reading lamp | 32K |
| A67e3 | Ambient lamp | 32K |
| A67e4 | Garage door opener indicator lamp | 34K |
| A67h1 | Forward automatic dimming mirror light sensor | 35K |
| A67h2 | Rearward automatic dimming mirror light sensor | 36K |
| A67h3 | Automatic dimming mirror | 36K |
| A67n2 | Garage door opener | 34J |
| A67n3 | Compass module with display | 38J |
| A67s1 | Garage door opener button 1 | 33K |
| A67s2 | Garage door opener button 2 | 34K |
| A67s3 | Garage door opener button 3 | 34K |
| A67s8 | Compass display button | 37K |
| A67x1 | Inside rearview mirror unit electrical connector | 28G |
| B38/1 | Light sensor | 9L |
| B38/2 | Rain/light sensor | 11L |
| CAN B | Interior CAN | 6K |
| E14/1 | Left sun visor mirror lamp | 40L |
| E14/2 | Right sun visor mirror lamp | 42L |
| E15/3 | Rear dome lamp | 43L |
| E15/3 | Rear dome lamp | 46L |
| E15/3e1 | Left rear reading lamp | 46K |
| E15/3e2 | Right rear reading lamp | 46K |
| E15/3e3 | Rear interior lamp | 45K |
| E15/3s1 | Left rear reading lamp switch | 46K |
| E15/3s2 | Right rear reading lamp switch | 46K |
| LIN 2 | Wiper/inside rearview mirror LIN | 3B |
| LIN 2 | Wiper/inside rearview mirror LIN | 11B |
| LIN 2 | Wiper/inside rearview mirror LIN | 34B |
| M12 | Tilting/sliding roof drive unit | 49L |
| M12b1 | Tilting/sliding roof Hall sensor 1 | 49L |
| M12b2 | Tilting/sliding roof Hall sensor 2 | 49L |
| M12m1 | Tilting/sliding roof motor | 50L |
| N10/1 | Front SAM control unit with fuse and relay module | 3L |
| N10/1 | Front SAM control unit with fuse and relay module | 57L |
| N10/1f17 | Fuse 17 | 2L |
| N123/4 | Emergency call system control unit | 61L |
| N70 | Overhead control panel control unit | 4A |
| N70 | Overhead control panel control unit | 12A |
| N70 | Overhead control panel control unit | 28A |
| N70 | Overhead control panel control unit | 20A |
| N70 | Overhead control panel control unit | 36A |
| N70 | Overhead control panel control unit | 45A |
| N70 | Overhead control panel control unit | 51A |
| N70 | Overhead control panel control unit | 59A |
| N70b1 | Interior temperature sensor with integrated fan | 2A |
| N70e4 | Left front interior lamp | 17A |
| N70e5 | Right front interior lamp | 17A |
| N70s1 | Tilting/sliding roof switch | 3A |
| N70s2 | Rear dome lamp switch | 5A |
| N70s3 | Interior lamp automatic function switch | 7A |
| N70s4 | Front dome lamp switch | 8A |
| N70s6 | Left front reading lamp switch | 9A |
| N70s7 | Right front reading lamp switch | 15A |
| N70s8 | Interior protection switch | 53A |
| N70s9 | Towing sensor button | 54A |
| S101 | Left front mirror lamp switch | 39L |
| S102 | Right front mirror lamp switch | 41L |
| U1 | Valid for USA | 55A |
| U12 | Valid for left-hand drive vehicles | 23H |
| U12 | Valid for left-hand drive vehicles | 23H |
| U12 | Valid for left-hand drive vehicles | 26H |
| U12 | Valid for left-hand drive vehicles | 27H |
| U13 | Valid for right-hand drive vehicles | 23H |
| U13 | Valid for right-hand drive vehicles | 24H |
| U13 | Valid for right-hand drive vehicles | 27H |
| U13 | Valid for right-hand drive vehicles | 27H |
| U16 | Valid for ATA [EDW] with tow-away protection and interior protection | 52K |
| U19 | Valid for standard equipment | 8G |
| U195 | Valid for rain/light sensor | 10G |
| U52 | Valid for Japan | 16G |
| U52 | Valid for Japan | 24G |
| U54 | Valid for all except Japan | 17G |
| U54 | Valid for all except Japan | 24G |
| U58 | Valid for model 204.0 | 58F |
| U59 | Valid for model 204.9 | 58F |
| U865 | Valid for Audio 20 | 13G |
| U865 | Valid for Audio 20 | 20G |
| U866 | Valid for Audio 50 | 12G |
| U919 | Valid for equipment AVANTGARDE and ELEGANCE | 44A |
| U920 | Valid for equipment CLASSIC | 43A |
| U926 | Valid for compass | 37G |
| W18/3 | Left front seat crossmember ground point 2 | 58H |
| W6/1 | Left taillamp trunk ground point | 58H |
| X18/37 | Emergency call system button electrical connector | 57E |
| X30/32 | Left vehicle floor interior CAN voltage distributor electrical connector | 6L |
| Z81 | Circuit 58d connector sleeve | 57G |