Rear Fuse And Relay Box Wiring Diagram - PE54.15-P-2103-97FCA
Model 253 (except 253.99) as of model year 2020 K40/5, Sheet 1 Model 253.99 as of model year 2019 with code 9O1 (Fuel cell pre-installation) K40/5, Sheet 1
| Code: | Designation: | Position: |
| A76 | Left front reversible emergency tensioning retractor | 73L |
| A76 | Left front reversible emergency tensioning retractor | 99L |
| A76/1 | Right front reversible emergency tensioning retractor | 105L |
| A76/1 | Right front reversible emergency tensioning retractor | 115L |
| A90/11 | Hydrogen filling station communication module | 31L |
| C3 | Rear window interference suppression capacitor | 11L |
| Code 221 | Fully electric driver seat adjustment without memory without electric head restraint adjustment | 128J |
| Code 222 | Electrically adjustable right front seat | 128J |
| Code 233 | DISTRONIC PLUS | 116J |
| Code 235 | Active Park Assist | 122J |
| Code 242 | All-electric front passenger seat with memory (right) | 128J |
| Code 275 | Memory package | 129J |
| Code 299 | PRE-SAFE® | 73J |
| Code 299 | PRE-SAFE® | 99J |
| Code 299 | PRE-SAFE® | 105J |
| Code 299 | PRE-SAFE® | 115J |
| Code 301 | Smoker"s package | 41J |
| Code 409 | Multicontour seat package | 125J |
| Code 409 | Multicontour seat package | 126J |
| Code 460 | Canada version | 42J |
| Code 467 | Electronic locking differential | 74J |
| Code 475 | Tire pressure monitor | 94J |
| Code 475 | Tire pressure monitor | 132J |
| Code 494 | USA version | 43J |
| Code 550 | Trailer hitch | 35J |
| Code 550 | Trailer hitch | 80J |
| Code 550 | Trailer hitch | 108J |
| Code 550 | Trailer hitch | 119J |
| Code 550 | Trailer hitch | 123J |
| Code 810 | Sound system | 18J |
| Code 810 | Sound system | 22J |
| Code 853 | "Midline" sound system | 21J |
| Code 865 | TV tuner | 93J |
| Code 866 | Rear entertainment preinstallation | 48J |
| Code 871 | Sensor system for trunk lid opening/closing | 121J |
| Code 872 | Left and right rear seat heaters | 109J |
| Code 876 | Interior lights package | 86J |
| Code 877 | Ambiance illumination | 86J |
| Code 890 | EASY-PACK liftgate | 20J |
| Code 897 | Wireless mobile phone charging | 43J |
| Code 899 | Wireless phone charging at front and antenna | 43J |
| Code 970 | Police emergency vehicles | 110J |
| Code 974 | Fire department lead emergency vehicle preinstallation | 111J |
| Code 975 | Emergency physician vehicle preinstallation | 111J |
| Code 9O1 | Fuel cell retrofitting | 24J |
| Code 9O1 | Fuel cell retrofitting | 22J |
| Code 9O1 | Fuel cell retrofitting | 21J |
| Code 9O1 | Fuel cell retrofitting | 19J |
| Code 9O1 | Fuel cell retrofitting | 18J |
| Code 9O1 | Fuel cell retrofitting | 34J |
| Code 9O1 | Fuel cell retrofitting | 31J |
| Code 9O1 | Fuel cell retrofitting | 46J |
| Code 9O1 | Fuel cell retrofitting | 73J |
| Code 9O1 | Fuel cell retrofitting | 81J |
| Code 9O1 | Fuel cell retrofitting | 72J |
| Code 9O1 | Fuel cell retrofitting | 83J |
| Code 9O1 | Fuel cell retrofitting | 105J |
| Code 9O1 | Fuel cell retrofitting | 89J |
| Code 9O1 | Fuel cell retrofitting | 85J |
| Code 9O1 | Fuel cell retrofitting | 96J |
| Code 9O1 | Fuel cell retrofitting | 98J |
| Code 9O1 | Fuel cell retrofitting | 103J |
| Code 9O1 | Fuel cell retrofitting | 125J |
| Code 9O1 | Fuel cell retrofitting | 128J |
| Code 9O1 | Fuel cell retrofitting | 126J |
| Code 9O1 | Fuel cell retrofitting | 118J |
| Code 9O1 | Fuel cell retrofitting | 115J |
| Code 9O1 | Fuel cell retrofitting | 122J |
| Code 9O1 | Fuel cell retrofitting | 131J |
| Code B01 | 48V technology | 97J |
| Code L | LEFT-HAND DRIVE | 82J |
| Code L | LEFT-HAND DRIVE | 77J |
| Code ME05 | HYBRID DRIVE 80 KW VARIANT (INCLUDING PLUGIN) | 90J |
| Code ME05 | HYBRID DRIVE 80 KW VARIANT (INCLUDING PLUGIN) | 100J |
| Code P21 | AIR-BALANCE package | 92J |
| Code P65 | Seating comfort package | 61J |
| Code P65 | Seating comfort package | 58J |
| Code P65 | Seating comfort package | 59J |
| Code P65 | Seating comfort package | 56J |
| Code P65 | Seating comfort package | 129J |
| Code R | RIGHT-HAND DRIVE | 79J |
| Code R | RIGHT-HAND DRIVE | 83J |
| Code U67 | 230 V socket in interior compartment | 46J |
| Code U67 | 230 V socket in interior compartment | 62J |
| Code U67 | 230 V socket in interior compartment | 112J |
| Code U79 | BLUETEC (SCR) diesel exhaust treatment 3 | 24J |
| Code U79 | BLUETEC (SCR) diesel exhaust treatment 3 | 76J |
| Code U80 | 115 V socket | 46J |
| Code U80 | 115 V socket | 112J |
| F32/4 | Vehicle interior prefuse box | 3L |
| F32/4f7 | Fuse 7 | 1K |
| G1/3 | 48 V on-board electrical system battery | 97L |
| K40/5 | Rear fuse and relay module | 4A |
| K40/5 | Rear fuse and relay module | 12A |
| K40/5 | Rear fuse and relay module | 20A |
| K40/5 | Rear fuse and relay module | 27A |
| K40/5 | Rear fuse and relay module | 36A |
| K40/5 | Rear fuse and relay module | 44A |
| K40/5 | Rear fuse and relay module | 52A |
| K40/5 | Rear fuse and relay module | 59A |
| K40/5 | Rear fuse and relay module | 67A |
| K40/5 | Rear fuse and relay module | 76A |
| K40/5 | Rear fuse and relay module | 84A |
| K40/5 | Rear fuse and relay module | 92A |
| K40/5 | Rear fuse and relay module | 100A |
| K40/5 | Rear fuse and relay module | 108A |
| K40/5 | Rear fuse and relay module | 116A |
| K40/5 | Rear fuse and relay module | 124A |
| K40/5 | Rear fuse and relay module | 134A |
| K40/5 | Rear fuse and relay module | 139A |
| K40/5 | Rear fuse and relay module | 154A |
| K40/5f400 | Fuse 400 | 67A |
| K40/5f401 | Fuse 401 | 65A |
| K40/5f402 | Fuse 402 | 64A |
| K40/5f403 | Fuse 403 | 62A |
| K40/5f404 | Fuse 404 | 60A |
| K40/5f405 | Fuse 405 | 57A |
| K40/5f406 | Fuse 406 | 82A |
| K40/5f407 | Fuse 407 | 80A |
| K40/5f408 | Fuse 408 | 78A |
| K40/5f409 | Fuse 409 | 76A |
| K40/5f410 | Fuse 410 | 74A |
| K40/5f411 | Fuse 411 | 72A |
| K40/5f412 | Fuse 412 | 99A |
| K40/5f413 | Fuse 413 | 96A |
| K40/5f414 | Fuse 414 | 93A |
| K40/5f415 | Fuse 415 | 91A |
| K40/5f416 | Fuse 416 | 89A |
| K40/5f417 | Fuse 417 | 86A |
| K40/5f449 | Fuse 449 | 112A |
| K40/5f450 | Fuse 450 | 110A |
| K40/5f451 | Fuse 451 | 109A |
| K40/5f452 | Fuse 452 | 107A |
| K40/5f453 | Fuse 453 | 106A |
| K40/5f454 | Fuse 454 | 104A |
| K40/5f455 | Fuse 455 | 48A |
| K40/5f456 | Fuse 456 | 45A |
| K40/5f457 | Fuse 457 | 42A |
| K40/5f458 | Fuse 458 | 40A |
| K40/5f459 | Fuse 459 | 39A |
| K40/5f460 | Fuse 460 | 37A |
| K40/5f461 | Fuse 461 | 35A |
| K40/5f462 | Fuse 462 | 33A |
| K40/5f463 | Fuse 463 | 32A |
| K40/5f464 | Fuse 464 | 31A |
| K40/5f465 | Fuse 465 | 29A |
| K40/5f466 | Fuse 466 | 28A |
| K40/5f467 | Fuse 467 | 131A |
| K40/5f468 | Fuse 468 | 122A |
| K40/5f469 | Fuse 469 | 120A |
| K40/5f470 | Fuse 470 | 126A |
| K40/5f471 | Fuse 471 | 118A |
| K40/5f472 | Fuse 472 | 115A |
| K40/5f473 | Fuse 473 | 21A |
| K40/5f474 | Fuse 474 | 10A |
| K40/5f475 | Fuse 475 | 19A |
| K40/5f476 | Fuse 476 | 16A |
| K40/5f477 | Fuse 477 | 14A |
| K40/5f478 | Fuse 478 | 24A |
| K40/5kS | Reserve solenoid switch | 26A |
| K40/5kT | Heated rear window relay | 8A |
| K40/5kU | 2nd seat row cup holder and power outlet relay | 54A |
| K40/5kV | AdBlue® relay | 69A |
| K40/5kX | 1st seat row/trunk refrigerator box and power outlet relay | 51A |
| N10/8 | Rear SAM control unit | 7L |
| N10/8 | Rear SAM control unit | 16L |
| N10/8 | Rear SAM control unit | 52L |
| N118 | Fuel pump control unit | 106L |
| N118/5 | AdBlue® control unit | 24L |
| N118/5 | AdBlue® control unit | 76L |
| N121/1 | Tailgate control control unit | 20L |
| N129/1 | Power electronics control unit | 72L |
| N143 | TV tuner control unit | 93L |
| N162 | Ambiance illumination control unit | 86L |
| N24/3 | DC/AC converter control unit | 46L |
| N24/3 | DC/AC converter control unit | 62L |
| N24/3 | DC/AC converter control unit | 112L |
| N25/6 | Rear seat heaters control unit | 109L |
| N28/1 | Trailer recognition control unit | 35L |
| N28/1 | Trailer recognition control unit | 80L |
| N28/1 | Trailer recognition control unit | 119L |
| N28/1 | Trailer recognition control unit | 108L |
| N28/1 | Trailer recognition control unit | 123L |
| N3/2 | Electric differential lock control unit | 75L |
| N32/15 | Left front multicontour seat control unit | 125L |
| N32/16 | Right front multicontour seat control unit | 126L |
| N32/23 | Driver"s seat lumbar support electropneumatic controller unit | 129L |
| N32/24 | Front passenger seat lumbar support electropneumatic controller unit | 130L |
| N38 | Rear switching module | 121L |
| N40/3 | Sound system amplifier control unit | 22L |
| N40/3 | Sound system amplifier control unit | 18L |
| N40/9 | Subwoofer amplifier | 21L |
| N51/8 | AIR BODY CONTROL Plus control unit | 34L |
| N59 | Perfume atomizer generator | 92L |
| N62 | Parking system control unit | 122L |
| N62/4 | Mercedes-Benz Intelligent Drive control unit | 116L |
| N66/2 | Backup camera control unit | 87L |
| N69/1 | Left front door control unit | 82L |
| N69/2 | Right front door control unit | 83L |
| N69/3 | Left rear door control unit | 77L |
| N69/4 | Right rear door control unit | 79L |
| N82/2 | Battery management system control unit | 89L |
| N82/2 | Battery management system control unit | 100L |
| N83/1 | DC/DC converter control unit | 96L |
| N83/11 | Alternating current charger for high-voltage battery | 90L |
| N83/11 | Alternating current charger for high-voltage battery | 118L |
| N88 | Tire pressure monitor control unit | 94L |
| N88 | Tire pressure monitor control unit | 132L |
| N97 | Rear axle electronic level control control unit | 104L |
| R1 | Rear window heater | 12L |
| R3 | Front cigarette lighter with ashtray illumination | 41L |
| S22/1 | Driver seat partially electric seat adjustment switch | 61L |
| S22/1 | Driver seat partially electric seat adjustment switch | 59L |
| S23/1 | Front passenger seat partially electric seat adjustment switch | 58L |
| S23/1 | Front passenger seat partially electric seat adjustment switch | 57L |
| W3/11 | Left rear wheel well ground point | 10H |
| W7 | Right wheelhouse trunk ground point | 6H |
| X4/36 | Vehicle socket electrical connector | 111L |
| X58/12 | Luggage compartment socket | 45L |
| X58/18 | Rear center console power outlet | 40L |
| X58/40 | Front passenger footwell socket | 43L |
| X99x1 | Left tablet PC electrical connector | 48L |
| X99x2 | Right tablet PC electrical connector | 49L |