Legend of wiring diagram of rear fuse and relay box - PE54.15-P-2103-60RAB
Model 251 up to 31.8.06 Fuse and relay box F4, Specification 2
| Code | Designation | Coordinates |
|---|---|---|
| A0 | Color code key | 80A |
| A2 | Radio | 48L |
| A2/56 | Radio and navigation unit | 49L |
| A6/1 | STH radio remote control receiver | 18L |
| A28/3 | E-net compensator | 28L |
| A40/3 | COMAND operating, display and controller unit | 45L |
| A40/3 | COMAND operating, display and controller unit | 49L |
| A49/1 | Interference filter 1 | 77L |
| A49/1x1 | Interference filter 1 input connector | 77K |
| A76 | Left front reversible emergency tensioning retractor | 10L |
| A76/1 | Right front reversible emergency tensioning retractor | 11L |
| A90/1 | TV combination tuner (analog/digital) | 68L |
| F4 | Load compartment fuse and relay box | 4A |
| F4 | Load compartment fuse and relay box | 11A |
| F4 | Load compartment fuse and relay box | 20A |
| F4 | Load compartment fuse and relay box | 28A |
| F4 | Load compartment fuse and relay box | 36A |
| F4 | Load compartment fuse and relay box | 44A |
| F4 | Load compartment fuse and relay box | 51A |
| F4 | Load compartment fuse and relay box | 61A |
| F4 | Load compartment fuse and relay box | 68A |
| F4 | Load compartment fuse and relay box | 76A |
| F4f20 | Fuse 20 | 75A |
| F4f21 | Fuse 21 | 22A |
| F4f22 | Fuse 22 | 14A |
| F4f23 | Fuse 23 | 30A |
| F4f23 | Fuse 23 | 72A |
| F4f24 | Fuse 24 | 12A |
| F4f25 | Fuse 25 | 46A |
| F4f26 | Fuse 26 | 37A |
| F4f29 | Fuse 29 | 10A |
| F4f33 | Fuse 33 | 41A |
| F4f34 | Fuse 34 | 34A |
| F4f38 | Fuse 38 | 64A |
| F4f39 | Fuse 39 | 52A |
| F4f40 | Fuse 40 | 8A |
| F4f41 | Fuse 41 | 60A |
| F4f42 | Fuse 42 | 61A |
| F4f68 | Fuse 68 | 4E |
| F4f69 | Fuse 69 | 6E |
| F4f70 | Fuse 70 | 1E |
| F4f71 | Fuse 71 | 3E |
| N25/7 | HS [SIH], seat ventilation and steering wheel heater control unit | 4L |
| N41/3 | Voice control system (VCS [SBS]) control unit | 75L |
| N41/5 | Microphone array control unit | 75L |
| N62 | PTS control unit | 14L |
| N69/1 | Door control module front left | 34L |
| N69/2 | Door control module front right | 37L |
| N69/5 | KEYLESS-GO control unit | 41L |
| N70 | Overhead control panel control unit | 60L |
| N72/2 | RCP [HBF] control unit | 21L |
| N87/5 | SDAR control unit | 56L |
| N88 | TPM [RDK] control unit | 53L |
| N93/1 | Audio gateway control unit | 64L |
| N121/1 | Rear-end door closing control module | 7L |
| N123/1 | Universal Portable CTEL Interface (UPCI [UHI]) control unit | 25L |
| U1 | Valid for | 23G |
| U1 | Valid for | 47F |
| U1 | Valid for | 73F |
| U2 | Valid for all except | 23G |
| U2 | Valid for all except | 27J |
| U3 | Valid for all except | 73G |
| U20 | Valid for all (except) | 47G |
| U78 | Valid for | 43F |
| U78 | Valid for | 62F |
| U78 | Valid for | 73G |
| U82 | Valid for KEYLESS GO | 39F |
| U538 | Valid for Parktronic System | 12F |
| U563 | Valid for rear entertainment (DVD) | 70K |
| U579 | Valid for stationary heater | 16F |
| U645 | Valid for tire pressure monitor system | 51F |
| U661 | Valid for TV and video in rear | 66F |
| U664 | Valid for automatic rear-end door | 6F |
| U703 | Valid for portable CTEL preinstallation | 30F |
| U752 | Valid for rear seat heater | 2F |
| U775 | Valid for reversible emergency tensioning retractor | 10F |
| U801 | Valid for UHI (Universal Portable CTEL Interface) | 23F |
| U816 | Valid for satellite radio (SDAR) | 55F |
| U895 | Valid for rear audio | 70J |
| X18/2 | Interior/roof connector | 59H |
| X29/6 | Center console intermediate connector | 21H |
| X35/1 | Left front door separation point | 34H |
| X35/2 | Right front door separation point | 37H |
| X39/37 | CTEL separation point | 31L |
| Z53/25 | UPCI [UHI] circuit 30 interior compartment solder point | 25H |