Opel Zafira B (Opel Zafira b) was produced in 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 and 2014. It is also known as the Zafira Family. In this article you will find the locations of all electronic control units, a detailed description of the fuse boxes and relays of the Opel Zafira b, with diagrams and photographs. Separately, we note the fuse responsible for the cigarette lighter.

The purpose of the elements in the units of your car may differ from that shown and depends on the year of manufacture, region of delivery and level of electrical equipment.
General arrangement of blocks
General layout of electronic control units

- ABS electronic control unit – under the expansion tank
- Electronic air conditioning control unit
- Antenna Signal Booster 1
- Antenna Signal Booster 2
- Impact sensor (SRS) – front
- Side impact sensor, driver side
- Side impact sensor, passenger side
- Anti-theft system shutdown relay
- Anti-theft alarm siren
- Additional heater control unit
- Additional heater relay – behind the expansion tank
- Battery
- Diagnostic Link Connector (DLC)
- Electronic engine control unit, diesel – behind the wheel arch
- Electronic Engine Control Unit, Petrol – Upper Right Side of Engine
- Relay 4 electric motor cooling fan – radiator
- Relay 5 of the electric motor of the cooling system fan – radiator
- Fuse/Relay Box, Engine Compartment
- Fuse/Relay Box, Luggage Compartment
- Glow Plug Control Unit
- Headlight range control unit (adaptive additional headlights)
- Heater Fan Motor Resistor
- Sound signal 1
- Sound signal 2
- Keyless entry system control unit – behind the fuse/relay box
- Multifunction control unit 1 – integrated in the fuse/relay box in the engine compartment – functions: Central locking, multifunction display, fog lights, fuel pump, headlights, headlight washer, rear window defroster, heater/air conditioning, horn, immobilizer, direction indicators, instrument cluster, interior lights, remote central locking system, luggage compartment light, rear window washer, reversing lights, brake lights, tail lights, windscreen wiper/washer, rain sensor (windscreen wipers)
- Multifunction control unit 2 – integrated in the fuse/relay box in the luggage compartment – functions: Anti-theft alarm system, central locking, fuel pump, rear window defroster, instrument cluster, interior lights, number plate light, rear window wiper, brake lights, trailer socket, vanity mirror light
- Ambient air temperature sensor
- Parking system control unit – behind the right rear trim panel
- Driver’s seat heating control unit – under seat
- Passenger Seat Heating Control Unit – Under Seat
- Steering column electrical equipment control unit
- SRS Electronic Control Unit
- Suspension control unit – with active suspension system
- Telephone control unit
- Trailer electrical equipment control unit
- Electronic control unit of the gearbox
- Gear shift control unit
- Tire pressure monitoring system control unit
- Rain sensor (windshield wiper)
- Lateral displacement sensor
Block under the hood
It is located on the left side of the engine compartment, next to the pillar and is covered with a protective cover.

Consists of two sections (fuse and relay box and high-power fuse section)
Photo – diagram

| FB1 | 50A Electro-hydraulic hard top HT |
| FB2 | 80A Diesel (Glow Time Controller) |
| FB3 | 80A EHP |
| FB4 | 30A Independent Heater IH 100A Additional Heater – Electric, Passenger Compartment EH |
| FB5 | 80A on REC / Rear Fuse Box |
| FB6 | 80A on REC / Rear Fuse Box |
| F1 | 20A Anti-lock Braking System (ABS) |
| F2 | 30A Anti-lock Braking System (ABS) |
| F3 | 30A Heating, ventilation, climate control system (HVAC) |
| F4 | 30A Heating, Ventilation and Air Conditioning (HVAC) System |
| F5 | 30/40A Cooling Fan 1* |
| F6 | 30/40A Cooling Fan 2* |
| F7 | 10A Windscreen Washers 20A (without REC) Central Locking ZV |
| F8 | 15A Horn 10A (without REC) Central locking ZV, Windscreen washer front, rear WA |
| F9 | 25A Headlight washers 25A (without REC) Rear window heating HFH (K17_X125) |
| F10 | 7.5A To the diagnostic connector DIAG |
| F11 | 7.5A Devices |
| F12 | 5A Circulation pump 7.5A (without REC) Inf. display ID, Audio system Twin Audio TWA, Digital radio broadcasting DAB, Telephone with voice control TCV |
| F13 | 15A Fog Lights 5A Interior Light IRL(K18_X125) |
| F14 | 30A Windscreen Wiper |
| F15 | 30A Door Window Wiper |
| F16 | 5A Engine Control Module/Open-Start/Stop System (without REC) ABS-ESP, Horn (K4_X125), Air Conditioning, Semi-automatic Air Conditioning, Electronic Climate Control, Brake Light Switch, El. Hydraulic Hard Top |
| F17 | 25A Fuel filter heater (diesel models) |
| F18 | 25A Starter |
| F19 | 30A Gearbox Electronics |
| F20 | 10A Air Conditioner / Horn (K4_X125) |
| F21 | 20A Engine Electronics |
| F22 | 7.5A Engine Electronics |
| F23 | 10A Adaptive Headlights (AFL) Headlight Range Adjustment |
| F24 | 15A Fuel pump |
| F25 | 15A Gearbox Electronics |
| F26 | 10A Engine Electronics |
| F27 | 5A Power Steering |
| F28 | 5A Gearbox Electronics |
| F29 | 7.5A Electronic equipment of the gearbox 7.5A (with REC) Control unit gearbox Automatic/Easytronic |
| F30 | 10A Engine Electronics (Ignition Coils) |
| F31 | 10A Adaptive Headlights (AFL) Headlight Range Control 15A (without REC) Rear Window Wiper (K56) |
| F32 | 5A Brake Malfunction Indicator Light, Air Conditioner, Clutch Pedal Switch |
| F33 | 5A Adaptive Headlight System (AFL). Headlight Range Adjustment |
| F34 | 7.5A Steering Column Module Control Unit |
| F35 | 20A Infotainment system |
| F36 | 7.5A Mobile phone / radio / Twin Audio system / multi-function display 15A (without REC) Cigarette lighter |
In one of the design options, fuse number 36 for 15A is responsible for the cigarette lighter. In other cases, look at the block in the luggage compartment.
Purpose of the relay
- K1 (K11_X125) Radiator fan (FE5, FE6)
- K2 (K12_X125) Radiator Fan (FE5, FE6)
- K3 (K7_X125) (with REC) Headlight washer pump (FE9)
- K3 (K17_X125) (without REC) Rear window heating (FE9)
- K4 (K16_X125) (with REC) Fog lights, front (FE13)
- K4 (K18_X125) (without REC) Disabling loading (interior lighting, etc.) (FE13)
- K5 (K5_X125) Windscreen wiper, windshield, low/high (FE14, FE15)
- K6 (K6_X125) Windscreen wiper, windshield, ON/OFF (FE14, FE15)
- K7 (K15_X125) Fan, passenger compartment – Air conditioning/heating (FE4)
- K8 (K14_X125) (with REC) Filter Heating (Diesel) (FE17)
- K8 (K8_X125) (without REC) Compressor, air conditioner (FE17)
- K9 (K1_X125) Starter (FE18, K3_X125)
- K10 (K13_X125) Radiator Fan (FE5, FE6)
- K11 (K8_X125) (with REC) Compressor, air conditioner (FE20, FE32)
- K11 (K4_X125) (without REC) Horn sound (FE20, FE16)
- K12 (K2_X125) Engine control controller (for FE21, FE26, FE32)
- K13 (K10_X125) Fuel pump (FE24)
- K14 (K3_X125) Pin 15 (to K1_X125, FE23, FE24, FE25, FE27, FE29, FE30, FE31, FE33)
Individual relay elements can be located outside the main unit, for example:
- K30A Relay – Radiator Fan (FE5, FE6)
- K30B Relay – Radiator Fan (FE5, FE6)
- K84LD/RD Relay – Hydraulic Unit (Convertible Convertible Top) (FB1)
- K93 Relay – gearshift lever release (Automatic transmission AF17/4, AF22/4)

Block in the luggage compartment
Located behind the left interior trim.

Option 1
Scheme

| 1 | 25/30A Electric drive for front window lifters |
| 2 | Not used |
| 3 | 7.5A Instrument cluster |
| 4 | 5A Heating/Air Conditioning/Climate Control (HVAC) |
| 5 | 7.5A Airbags |
| 6 | Not used |
| 7 | Not used |
| 8 | Not used |
| 9 | Not used |
| 10 | Not used |
| 11 | 25A Rear window heating (tailgate window glass) |
| 12 | 15A Rear Window Wiper |
| 13 | 5A Parking Assistance System |
| 14 | 7.5A Air Conditioning System |
| 15 | Not used |
| 16 | 5A Seat occupancy recognition system/Open-Start system |
| 17 | 5A Rain sensor/Air quality sensor/Tire pressure monitoring system/Interior rearview mirror |
| 18 | 5A Devices/Switches |
| 19 | Not used |
| 20 | 10A Dynamic Damper Control (CDC) |
| 21 | 7.5A Heated exterior rearview mirrors |
| 22 | 25A Upper hatch |
| 23 | 25/30A Electric rear window lifts |
| 24 | 7.5A Diagnostic connector |
| 25 | Not used |
| 26 | 7.5A Electric folding outside mirrors |
| 27 | 5A Ultrasonic Sensor Anti-Theft Alarm System |
| 28 | Not used |
| 29 | 15A Cigarette Lighter, Front Socket |
| 30 | 10A Rear socket for connecting additional electrical appliances |
| 31 | Not used |
| 32 | Open & Start System |
| 33 | Not used |
| 34 | 25A Upper hatch |
| 35 | 10A Rear socket for connecting additional electrical appliances |
| 36 | 20A Towing hitch socket |
| 37 | 5A Interior lighting |
| 38 | 30A Central lock, terminal “30” |
| 39 | 15A Left front seat heating |
| 40 | 15A Heated right front seat |
| 41 | Not used |
| 42 | Not used |
| 43 | Not used |
| 44 | Not used |
- K2 (K3_X131) Relay — rear window heating, mirrors (on FR11, FR21), (from FB5, FB6)
- K3 (K1_X131) Relay – pin 15 (on FR12, FR13, FR14, FR16, FR17, FR18, FR20)
- K4 (K2_X131) Relay – terminal 15a (on FR39, FR40)
Fuse number 29 for 15A is responsible for the operation of the cigarette lighter, and fuse number 30 for 10A is responsible for the additional sockets.
Option 2

| F50 | 10A AC Air Conditioner (on relay K5) |
| F51 | 15A Fog lights (front) (on relay K39) |
| F52 | 15A Additional socket (rear cigarette lighter) ACS |
| F53 | 7.5A Heated Mirrors |
| F54 | 30A Front window lifters FHF |
| F55 | 30A Rear window lifts FHR |
| F56 | 7.5A Tail lights (on K71), Lock without handle (on K24D) |
| K5 | Relay – compressor, air conditioner (FE33, F50) |
| K24D | Deadlock relay (F56) |
| K39 | Relay – Fog Light, Front (F51) |
| K56 | Relay – Windscreen Wiper, Rear Window (FE31, FE33) |
| K71 | Relay – reverse light (F56, FE33) |