Mercedes-Benz Sprinter 906 represents the 2nd generation of the Mercedes Sprinter lineup. Years of production: 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 and 2017. In this material you will find information about the locations of electronic control units, a description of the fuses and relays Mercedes Sprinter 906 with box diagrams and photo examples of their performance. Select the fuses responsible for the cigarette lighter.
The execution of the boxes and the purpose of the elements in them may differ from those presented and depend on the year of manufacture, equipment level and region of delivery.
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[Description of Sprinter 1G]
[Description of Sprinter 3G]
Contents
Layout
General block layout
Assignment
| 1 | ABS electronic control unit |
| 2 | A/C condenser fan motor relay |
| 3 | Electronic air conditioning control unit – in the heater control panel |
| 4 | A/C/Heater Fan Motor Control Module – Next to the fan motor |
| 5 | Antenna signal booster |
| 6 | Air suspension control unit – pillar “0” |
| 7 | Anti-theft siren – engine compartment, left side |
| 8 | Additional battery – engine compartment, left side |
| 9 | Secondary Battery Relay |
| 10 | Additional heater control unit (type 1) |
| 11 | Additional heater control unit (type 2) |
| 12 | Additional heater control unit (type Z) – in the heater unit |
| 13 | Accumulator battery |
| 14 | Diagnostic connector (DLC) |
| 15 | Door electrical control unit, driver’s side |
| 16 | Left rear door electrical control unit |
| 17 | Control unit for electrical equipment of the right rear door |
| 18 | ECM (Diesel) – Engine 651 |
| 19 | ECM (Diesel) – except 651 engine |
| 20 | Electronic engine control unit (gasoline) – on the engine |
| 21 | Fuse/Relay Box, Instrument Panel |
| 22 | Fuse/Relay Box, Footwell |
| 23 | Fuse/Relay Box, Under Seat |
| 24 | Glow Plug Control Unit – Engine 646 |
| 25 | Glow plug control unit – except engine 646 |
| 26 | Headlight control unit, left (xenon headlights) |
| 27 | Headlight control unit, right (xenon headlights) |
| 28 | Headlight range control unit – pillar “A” |
| 29 | Rear defroster relay 1 |
| 30 | Rear defroster relay 2 (with anti-theft system) |
| 31 | Windshield defroster relay |
Fuse box and relay under the panel
Under the instrument panel, in the foot well on the left side of the vehicle, behind a protective cover is the main fuse and relay box. To access, turn the fastener in the middle of the cover.
Photo
Diagram
Designation
| 1 | 15A Horn |
| 2 | 25A Steering column lock (ELV), electronic ignition and starter switch (EZS) |
| 3 | 10A Terminal 30z (petrol engines), electronic ignition and starter switch (EZS), instrument cluster |
| 4 | 5A Light switch (LDS), center console switch box (OBF; terminal 30) |
| 5 | 30A Front wiper |
| 6 | 15A Fuel pump |
| 10A Engine control, terminal 87 (5) (vehicles with code MI6/XM0) | |
| 7 | 5A Steering column tube module (MRM) |
| 8 | 20A Motor control, terminal 87 (2) |
| 9 | 20A Engine control terminal 87 (3) (petrol vehicles) |
| 25A Engine control, terminal 87 (3) (vehicles with diesel engine) | |
| 20A Engine control, terminal 87 (1) (vehicles with code MI6/XM0) | |
| 10 | 10A Motor control terminal 87 (4) |
| 11 | 15A Terminal 15R |
| 12 | 10A Airbag terminal 15R |
| 13 | 15A Audio module, cigarette lighter, glove box lighting, bodybuilder tail lift, PND power socket (mobile navigation system) |
| 14 | 5A Light switch (LDS), instrument cluster, diagnostic socket, reversing warning lamp deactivation, anti-theft system with vehicle tracking, terminal 15 |
| 15 | 5A Headlight range adjustment (LWR), front heating system |
| 16 | 10A Motor control terminal 87 (1) |
| 17 | 10A Airbag |
| 18 | 7.5A Terminal 15, brake light switch |
| 19 | 7.5A Interior lighting, terminal 30 |
| 20 | 25A Terminal 30, right front power window, signal recording and excitation module |
| 21 | 5A Engine control unit, terminal 15 |
| 22 | 5A ABS, ESP, terminal 15 |
| 23 | 20/25A Starter, terminal 50 |
| 10A Engine control, terminal 87 (6) (vehicles with code MI6/XM0) | |
| 24 | 10A Engine components, terminal 15 (diesel engines), control unit (vehicles with NGT natural gas engine) |
| 25 | 25A Front panel socket |
| 26 | 25A Driver’s door control unit |
| 27 | 10A Diagnostic connector |
| 28 | 25A Brake system (valves) |
| 29 | 40A Brake system (booster pump) |
| 30 | 7.5/10A Motors terminal 87 (5) (7.5A – M272, OM651; 10A – OM642) |
| 31 | 7.5/10A Motors terminal 87 (6) (7.5A – OM651, M271, M272; 10A – OM642) |
| 32 | 30A Headlamp cleaner |
| 33 | 15A Anti-Theft Warning System (EDW), Flashing Beacon/SGU |
| 34 | 10A Reserve (until 03/07) |
| 10A Additional turn signal module | |
| 35 | 15A Radio receiver 1 DIN |
| 20A Radio receiver 2 DIN | |
| 36 | 7.5A Mobile phone, tachograph, navigation system holder |
| 37 | 30A Front passenger compartment fan, auxiliary heating system, fan stage 1 |
| 38 | 7.5A Auxiliary heating timer, radio, electrical retrofit – DIN socket, FleetBoard system, anti-theft device with vehicle tracking |
| 39 | 30A Seat heating |
| 40 | 10A Body Electrical, Third Party |
| 5A Brake control unit | |
| 41 | 10A Front air conditioning, CD changer, heating system, rear heating system |
| 42 | 7.5/10A Motion sensor, comfort light, satellite radio, reading light and cargo area light, luggage compartment light |
| 43 | 7.5A Rear air conditioner |
| Relay | |
| R1 | Horn relay |
| R2 | Front wiper relay, mode 2 |
| Wiper relay, stage 1/2 | |
| R3 | Fuel pump relay |
| Starter relay, terminal 15 (vehicles with code MI6/XM0) | |
| R4 | Front wiper relay, mode 1 |
| relay on / off wipers | |
| R5 | Starter relay, terminal 50 |
| R6 | Relay, terminal 15R |
| R7 | Motor control relay, terminal 87 |
| R8 | Relay, terminal 15 |
Fuse and relay boxes under the seat
On the left side, under the driver’s seat, there are several blocks with fuses and relays.
Fuse and relay box on the side of the seat
To access, remove the protective cover.
Type 1
Photo example
Diagram
Appointment
| 1 | 5A Mirror adjustment, heated rear window relay |
| 2 | 30A Rear wiper |
| 3 | 5A Heater timer, Reversing camera, Neutral switch (with start assist, 4WD and keep engine running function), Electrical retrofit – DIN socket (roof), FleetBoard system, anti-theft system with vehicle tracking, emergency hammer lighting at the rear of the car, emergency exit lighting |
| 4 | 7.5A Tachograph, automatic speed control (ADR), power take-off, trailer coupling (AAG) |
| 5 | 10A Transmission Shift System (EGS) control unit, terminal 87 |
| 5A Start function, ECO engine shutdown, hood switch | |
| 6 | 5A All wheel drive |
| 10A AWD, ride height control (ENR), auxiliary oil pump | |
| 7 | 7.5/10/15A Automatic transmission control lever module (EWM) |
| 8 | 10A 3-way tipping/tail lift, terminal 15, PARKTRONIC |
| 9 | 15A SSU/roof fan |
| 7.5A Air conditioning compressor clutch, switchable warning buzzer for reversing warning light | |
| 10 | 25A Body equipment, terminal 30 |
| 11 | 15A Body equipment, terminal 15 |
| 12 | 10A Body equipment, terminal D+ |
| 13 | 10A Additional turn signal module (before 03/07) |
| 30A Rear air conditioner | |
| 20A Fuel Pump FSCM (Fuel Level Control Module) | |
| 15A Fuel pump relay without FSCM (vehicles with code MI6/XM0) | |
| 14 | 20A Trailer socket |
| 15 | 25A Trailer coupler (AAG) |
| 16 | 7.5A Tire pressure monitoring system (RDK), Parktronic |
| 17 | 25A Control unit for parameterizable special module (PSM) |
| 18 | 25A Control unit for parameterizable special module (PSM) |
| 19 | 5/10A Ceiling control box (DBE) |
| 25A Sliding/tilting sunroof, overhead control box (DBE) | |
| 10A “ERA-GLONASS” system | |
| 20 | 7.5A Contour lights, number plate light, identification light |
| 21 | 30A Heated rear window without EDW (anti-theft alarm system) |
| 15A Heated rear window with EDW (anti-theft alarm system) | |
| 22 | 15A Heated rear window |
| 20A Vehicle power socket | |
| 23 | 10A Body Electrical, Third Party |
| 15A Socket in rear compartment, left | |
| 24 | 15A Driver’s seat socket |
| 25 | 15A Socket in the rear of the passenger compartment on the right |
| 26 | 25A Auxiliary water heater |
| 27 | 25A Additional heater |
| 20A Additional air heater | |
| 28 | 30A Rear air conditioning (until 03/07) |
| 7.5A CNG, terminal 87 | |
| 25A Starter relay SRB (fuse and relay box; vehicles without back-up battery) | |
| 25A Starter with support from the on-board network due to an additional battery | |
| 29 | 10/30A Four wheel drive |
| 7.5A Terminal 87 (7) gas fuel system, cars with natural gas engine NGT | |
| 30 | 30A Air suspension (compressor), brake booster (for North America) |
| 10A All wheel drive (compressor) | |
| 15A Additional heat exchanger fan | |
| 31 | 15/30A Sliding door left, rear fan |
| 15A Sliding door closing reinforcement, left | |
| 32 | 10A Keyless Entry |
| 5A SCR system – exhaust gas aftertreatment control relay | |
| 33 | 30A Sliding door right, suspension unit (ENR) |
| 15A Sliding door closing reinforcement, right | |
| 34 | 30A Left sliding door (until 03/07) |
| 20A SCR system – heating system 1, AdBlue® reducing agent, vehicles with diesel exhaust aftertreatment system | |
| 35 | 30A Brake booster |
| 5A SCR system – heating system 2, AdBlue® reducing agent, vehicles with diesel exhaust aftertreatment system | |
| 36 | 15A SCR system – control and heating system 3, AdBlue® reducing agent, vehicles with diesel exhaust aftertreatment system |
| 37 | 5A COLLISION PREVENTION ASSIST / FCW (Forward Collision Warning) |
| 5A Lane Change Warning / BSM (Blind Spot Monitor) | |
| 38 | 10A Multifunction Camera (MK) with High Beam Assist with Lane Departure Warning |
| 39 | 7.5A Body electrical equipment (delivery operation), reinforced air conditioning system in the rear of the vehicle |
| 15A Ceiling fan, siren | |
| 40 | 15A Charging current from buffer battery (vehicles with buffer battery) |
| 41 | 7.5A SAM (signal acquisition and excitation module) buffer battery reference voltage |
| 42 | 30A Rear air conditioning system |
| 43 | 10A Electric step/sliding door, right |
| 44 | 10A Electric step/sliding door, left |
| 45 | 5A Electric step, control module and warning buzzer |
| Relay | |
| R1 | relay cl. D+ Body |
| R2 | relay cl. 15 body |
| R3 | Lighting relay |
| tail lift relay | |
| R4 | headlight washer relay |
| R5 | Flashing light relay |
| R6 | Horn relay EDW (EDW – anti-theft alarm system) |
| R7 | Not used |
| R8 | SGU relay |
| R9 | Circulation pump relay |
| R10 | Not used |
Type 2
Diagram
Decoding
| 1 | 5A Window regulator control panel in the driver’s door Relay 2 for heated rear window |
| 2 | 30A Rear window wiper motor in swing door |
| 3 | 5A Timer Gearbox neutral position switch Display panel Rear view camera |
| 4 | 7.5A Switch for adjusting the operating speed PTO monitor sensor Trailer detection control unit Tachograph control unit |
| 5 | 5 / 10A Selector Control unit mech. Electronically controlled gearbox Bonnet limit switch (from November 2011) |
| 6 | 5 / 10A Heating resistor for crankcase ventilation system Control unit for battery regulation (from May 2011 to May 2013) |
| 7 | 10A Fuel filter heating element |
| 8 | 5 / 10A Tipping device button Parking aid control unit (from May 2013) Special superstructure relay, cl. 15 (up to November 2011) 6-pin connector -T6ah- 7-pin connector -T7f- (tail lift connector) |
| 9 | 15A Roof fan switch for supply ventilation of the cargo compartment (until November 2011) Siren relay (until November 2011) Not used (from November 2011) |
| 10 | 25A For the manufacturer of superstructures and special equipment |
| 11 | 15A Relay for special superstructures, cl. fifteen |
| 12 | 10A Relay for special superstructures, cl. 61 |
| 13 | Reserve |
| 14 | 20A Connector, 9-pin -T9b- (preparation for post-factory installation of trailer hitch) Hitch socket |
| 15 | 25A Trailer recognition control unit |
| 16 | 7.5A Parking aid control unit Tire pressure monitor control unit |
| 17 | 25A Control unit for programmable special functions |
| 18 | 25A Control unit for programmable special functions |
| 19 | 5 / 25A Roof electrical control unit |
| 20 | 7.5 / 10A Relay for pumping coolant after off. motor relay input illumination and footwell |
| 21 | 30A Rear window defogger relay |
| 22 | 15A Rear window heating relay 2 |
| 23 | 10 / 15A Load box lighting switch 12 V socket 2 -U18- |
| 24 | 15A Socket 12V 4 |
| 25 | 15A Socket 12V 3 |
| 26 | 25A Additional heater control unit |
| 27 | 20 / 25A Additional heater control unit |
| 28 | 30 / 40A Gearbox hydraulic pump relay, Starter relay 1 |
| 29 | 15A Control unit mech. Electronically controlled gearbox |
| 30 | 5A Battery regulation system control unit |
| 31 | 15 / 30A Control unit for left sliding door (from May 2012) Control unit for rear supply fan Rear supply fan |
| 32 | 5A Control unit for battery control |
| 33 | 7.5 / 15 / 30A Not used Right sliding door control unit (from May 2012) Transfer case interlock relay (from January 2012) Air compressor (from January 2012) |
| 34 | 7.5 / 15A Control unit for reducing agent heating system Gearbox sensor for differential lock |
| 35 | 3 / 15A Control unit for reducing agent heating system Compressor protection control unit (from January 2012) |
| 36 | 5A Not used (until January 2012) Compressor switch (from January 2012) |
| 37 | Reserve |
| 38 | Reserve |
| 39 | 7.5 / 15A Roof fan switch for supply ventilation of the cargo compartment (from November 2011) Siren relay (from November 2011) |
| 40 | Reserve |
| 41 | Reserve |
| 42 | 30A Evaporator fan control unit -J349- |
| 43 | Reserve |
| 44 | Reserve |
| 45 | Reserve |
| 46 | Reserve |
| 47 | Reserve |
| 48 | Reserve |
| 49 | Reserve |
| 50 | Reserve |
| 51 | Reserve |
| 52 | Reserve |
| 53 | Reserve |
| 54 | Reserve |
| 55 | Reserve |
| 56 | Reserve |
Relay under the seat
Additional relays can be installed under the seat itself.
Diagram
Assignment
| R1 | Starter relay, right-hand drive vehicles |
| R2 | Unload relay, terminal 15 |
| R3 | Relay, terminal 15, starter |
| R4 | Secondary Air Injection Relay / Secondary Air Pump |
| SCR system relay, vehicles with exhaust after treatment system | |
| R5 | Fuel pump relay |
| R6 | Fan relay, front, fan stage 1 |
| R7 | Unload relay, terminal 15 R |
| R8 | Starter relay, auxiliary battery |
| Starter relay, left-hand drive vehicles | |
| R9 | Relay 1, heated rear window |
| R10 | Heated rear window relay 2 with EDW |
| Snow plow relay, low beam left | |
| R11 | Relay 1, left electric footrest |
| Snow plow relay, right low beam | |
| R12 | Relay 2, left electric footrest |
| Snow plow relay, high beam left | |
| R13 | Unload relay, terminal 15 (2) |
| Snow plow relay, right high beam | |
| R14 | Relay 1, heated windshield |
| R15 | Relay, bodybuilder, terminal 15 |
| R16 | Relay, bodybuilder, terminal 61 (D+) |
| R17 | Tail lift equipment relay |
| Comfort lighting relay | |
| R18 | Headlight cleaner relay |
| R19 | Beacon relay with siren |
| R20 | EDW (Emergency Warning System) Relay, Horn |
| R21 | Loop/Identifier Relay (North America) |
| License Plate Lamp Relay (Public Service) | |
| Fan relay, additional air heating, fan stage 1 | |
| R22 | Fan relay, additional air heating, fan stage 2 |
| R23 | Beacon relay with siren |
| Relay, terminal 61 (D+), anti-theft device with vehicle tracking | |
| R24 | Relay 1, right electric footrest |
| R25 | Relay 2, right electric footrest |
| R26 | Reverse signal relay off. |
| Anti-theft device relay with vehicle tracking |
Power fuse box
When installing an additional battery under the seat, it can also be equipped with an additional high power fuse box.
Diagram
Designation
| 1 | Spare |
| 2 | 80A Signal Acquisition and Excitation Module (SAM) / Fuse and Relay Module (SRB) |
| 3 | Spare |
| 4 | 150A Buffer battery input |
| 5 | 150A SAM (signal acquisition and excitation module) / SRB (fuse and relay box), terminal 30 fuse box |
| 6 | |
| 7 | |
| 8 | 100A Brake – retarder, combined with battery disconnect relay |
| 9 | 150A Additional battery |
| 10 | 250A Snow plow drive hydraulic pump, Tail lift, Dump truck |
Diagram
Functions
| 12 | Spare |
| 13 | 150A Electrical auxiliary heater (PTC) |
| 80A Rear air conditioning system, reinforced | |
| 14 | 60A Air conditioning electric fan – cab without bulkhead or with heavy duty rear air conditioning (vehicles with a wheelbase of 3665 mm) |
| 40A Air conditioning electric fan – bulkhead cab or rear heavy duty air conditioning | |
| 40A Air conditioning electric fan – cab, open vehicle modification | |
| 70A Electric fan | |
| 15 | Spare |
| 16 | 100A Retarder, not in combination with battery disconnect relay |
| 150A Battery Disconnect Relay | |
| 17 | Spare |
| 18 | 300A Generator |
Battery fuse box
The fuse box is located near the battery in the footwell on the left side of the vehicle.
Diagram
Appointment
| 1 | 80A Engine preheat relay |
| 40A Secondary air pump (vehicles with petrol engine) | |
| 2 | 80A Engine cooling fan – air conditioning |
| 25A Relay, terminal 15, starter (vehicles with code MI6/XM0; vehicles with back-up battery) | |
| 25A Starter relay, no support (vehicles with backup battery) | |
| 70A Engine cooling fan (vehicles without backup battery) | |
| 40A Air conditioning fan – cab (vehicles without backup battery) | |
| 40A Air Conditioning Fan – Cab with Bulkhead or Powered Rear Air Conditioning (Vehicles Without Buffer Battery) | |
| 60A Air Conditioning Fan – Cab with Bulkhead or Powered Rear Air Conditioning (3665 mm wheelbase vehicles; vehicles without buffer battery) | |
| 3 | 80A Signal acquisition and excitation module / fuse and relay box (vehicles without back-up battery) |
| 4 | 150A Auxiliary battery in engine compartment, retarder (vehicles without backup battery) |
| 5 | 150A Terminal 30, fuse blocks, signal recording and excitation module / fuse and relay box (vehicles without backup battery) |
| 6 | Seat frame reference point (bridge) |
| 7 | 150A Auxiliary heater (PTC) (vehicles without backup battery) |
| 80A Rear air conditioning system, reinforced (vehicles without backup battery) |
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I GOT BATTERY CHECK RELAY IN MY CONTROL MONITOR, WHERE CAN I FIND MY BATTERY RELAY MERCEDES B – SPRINTER TRANQUILITY 2023.
i want know nox sensor relay location for mb sprinter van 314cdi 2017 pls