The 2nd generation Skoda Octavia is based on the A5 platform. It was produced in 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 and 2013 with station wagons and liftbacks, both with gasoline and diesel engines. In this material, we will provide a designation of the Skoda Octavia a5 (MK2) fuse boxes and relays, their locations, photographs and diagrams. Separately, we will highlight the fuses responsible for the cigarette lighter and washer
The number of elements in the boxes and their purpose may differ from the one presented and depends on the year of manufacture, the level of the vehicle equipment and the country of delivery.
Passenger compartment
Fuse box
It is located at the end of the dashboard behind the protective cover. On the back of which the current designation of the fuses should be found in the form of a brochure.
Diagram
Assignment
| 1 | 10A Diagnostic connector, engine control unit, fuel pump |
| 2 | 5A Control unit ABS, ESP |
| 3 | 5A Airbags |
| 4 | 5A Heater, air conditioner, reversing light |
| 5 | 5A Electro headlight range control |
| 6 | 5A Instrument cluster, automatic gearbox control unit, electric power steering control unit, parking assistance system |
| 7 | Reserve |
| 8 | Reserve |
| 9 | Reserve |
| 10 | Reserve |
| 11 | Reserve |
| 12 | 10A Central locking control unit |
| 13 | 10A External lighting control unit, brake lights |
| 14 | 5A Automatic gearbox control unit, gear selector lock |
| 15 | 7.5A Interior lighting control unit |
| 16 | 10A Climate control system |
| 17 | Optional equipment |
| 18 | 5A Parking aid sensors |
| 19 | 5A Traction hitch control unit |
| 20 | 5A Help system when starting off uphill |
| 21 | Reserve |
| 22 | 40A Fan of the climate control system |
| 23 | 30A Window regulator for front windows |
| 24 | 15A cigarette lighter fuse |
| 25 | 25 / 30A Rear window heating. Additional heater |
| 26 | 20A Trunk socket |
| 27 | 15A Fuel pump relay, fuel injectors |
| 28 | Optional equipment |
| 29 | 10A Engine control unit |
| 30 | 20A Automatic gearbox control unit |
| 31 | 20A Brake vacuum pump |
| 32 | 30A Rear door windows |
| 33 | 25A Electric sunroof |
| 34 | 20A Control unit for comfort functions |
| 35 | 5A Anti-theft system |
| 36 | 20A Headlight washers |
| 37 | 20A Heated front seats |
| 38 | 30A Heated rear seat |
| 39 | Reserve |
| 40 | 40A Heating fan |
| 41 | 15A Rear door window wiper |
| 42 | 15A Windshield washer |
| 43 | 15A Trailer coupling |
| 44 | 20A Trailer coupling |
| 45 | 15A Trailer coupling |
| 46 | 5A Heated washer jets |
| 47 | 5A Additional heater relay |
| 48 | Reserve |
| 49 | 5A Central light switch |
The fuse number 24 at 15A is responsible for the cigarette lighter. And for the windshield washer number 42, also 15A.
Relay box
It is located under the dashboard itself, behind the cladding panel.
Type 1
Diagram
Designation
- B4 – supply voltage relay (30)
- B5 – rear window heating relay
- B6 – horn relay
- B7 – relay -1- glass washer pump
- B8 – relay -2- glass washer pump
- B9 – commutation relay for contact X
Type 2
In this version, there is also a central control unit.
Relay box under the CBU
Diagram
Appointment
- supply voltage relay (15) -J329-
- Heated rear window relay -J9-
- supply voltage relay (50) -J682- / starter relay 1 -J906-
- fuel pump relay (pressure build-up in the fuel supply system) -J643- (for engine codes BUD, CGGA, BSE, BSF, CMXA, CHGA) / fuel pump relay -J17- (for diesel engines)
- Switching relay for terminal X -J59-
Additional relay box above the central control unit
Protected components
- D1 – Relay for independent heater -J485- (for vehicles with an independent auxiliary heater) / relay for low heat output -J359- (for vehicles with auxiliary resistive heater (PTC))
- D2.1 Horn relay -J4-
- D2.2 – Fuel pump relay (for engine letters BUD, CGGA, BSE, BSF, CMXA, CHGA) / – Additional fuel pump relay -J832- (for engine letters CLCA, CLCB, CFHF, CFHC, CEGA)
- D3 – Relay for high heat output -J360- (on vehicles with additional resistance heater (PTC))
D3.1 – Relay for fresh air blower -J13- (on vehicles with independent auxiliary heater) - D3.2 – Additional heater fuel pump relay -J749- (on vehicles with an independent additional heater)
- D4 – Starter relay 2 -J907-
- D5.1 – headlight washer relay -J39
- D5.2 – Relay for heating element -J925- (at engine lettering CAYC)
Stove not working? In some models, a thermo-fuse for the stove is provided, which is located separately.
Engine compartment
It is located on the left side of the underhead space under the protective cover and consists of 2 department:
- fuse and relay department
- department of high power fuses in the form of fusible links
Fuse and relay box diagram
Assignment
| 1 | Reserve |
| 2 | 5A Steering column switches |
| 3 | 5A Diagnostic connector |
| 4 | 30A ABS Hydroelectronic Module |
| 5 | 15A Automatic gearbox control unit |
| 6 | 5A Instrument cluster |
| 7 | Reserve |
| 8 | 15A Audio system |
| 9 | 5A Phone |
| 10 | 5A Power supply of the relay of the engine control unit |
| 11 | 20A Control unit for additional heater and ventilation |
| 12 | 5A Data bus control unit |
| 13 | 15A Engine control unit |
| 14 | 20A Ignition |
| 15 | 5 / 15A Oxygen concentration sensor, fuel pump relay, glow plug relay |
| 16 | 30A ABS control unit |
| 17 | 15A Sound signal |
| 18 | 30A Sound amplifier |
| 19 | 30A Windshield wipers |
| 20 | Reserve |
| 21 | 15A oxygen concentration sensor |
| 22 | 5A Brake clutch pedal switch |
| 23 | 5/10 / 15А Additional air pump, high pressure fuel pump, mass air flow sensor |
| 24 | 10A Exhaust Gas Recirculation Valve |
| 25 | 30A Right headlight |
| 26 | 30A Left headlight |
| 27 | 40A Additional air pump, preheating |
| 28 | 40A Starter |
| 29 | 50A Clamp power supply 30 |
| 30 | 50A Terminal X – equipment connected to this terminal will automatically turn on when the engine is started. |
Relay
- R1 – Radiator fan motor relay
- R2 – Automatic gearbox control relay
- R3 – supply voltage relay (15)
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Still have questions? Ask them in the comments.
I liked this. It was more informative than usual insights into the fusebox. On RHD the fuse box on end of dash panel appears to be a mirror image of LHD so one must be careful to count the fuse numbering the right way. It might be worth mentioning that and perhaps covering it briefly so as to make it clear. The fuse numbering is right to left rather than left to right. For example, in the image fuse 1 actually becomes fuse 6. This is one that catches people out quite a lot
Thanks for your addition.
Skoda Octavia 2009 diesel….no ignition or instrument cluster lights, car starts then dies straight away, lights, radio are working, I hope it’s a fuse or relay but which one should I be looking at.
Have looked at manual and inspected fuse in engine compartment, seems ok and not sure which one inside the car.
I have no power to ignition switch, no lights to instrument cluster and car won’t turn over which fuses, relay should I be checking for this please
Check the engine fuse box. Is the battery ok?
Did you get sorted I am having the same issue
Hi guys could you help with the location of glow plug relay 2010 1.6
Hi guy I pied the automatic gear box relay and now I put it back I have a gear selection warning and can’t start the engine is this issue a fuse or is it the relay?
I’m having problems with 2006 skoda Octavia it will drive for about 3 miles them cuts out it won’t start for a few hours but struggles to start when it does any help.
Skoda octavia 2005 1.9 tdi. Brake lights are on all the time when ignition is on. I have replaced switch, I have power in the wire feeding the switch when the fuse is out of the fuse box.
I have a problem with the seat warming. The driver seat si not warming up at all, the passenger seat is warming up pretty slowly. What might be the problem? I heard that it may be a relay, but which one? And where to find it?
I have a problem with the battery charging. Have a new alternator fully charged battery, car starts runs but the battery is not charging after about 30 seconds. Is this a short or relay problem?. If relay which one?.
On intermittent wipe my wipers start going erratic, : they go like the clappers like the fastest rate for heavy rain. A mechanic said just live with it. I dont see a relay for the front wipers.
hello I have a problem that has been bothering me for a month. when you want, both fans turn on at full speed and the engine revs up to 1050 rpm. it doesn’t matter if the engine is cold or warm.
Based on the information you’ve provided, it sounds like there may be an issue with the cooling system of your vehicle. When both fans turn on at full speed and the engine revs up to 1050 rpm, it’s likely that the engine is trying to cool down quickly.
One possibility is that there is a problem with the engine’s temperature sensor or the thermostat. These components help regulate the temperature of the engine and if they are not functioning properly, it can cause the fans to turn on at full speed and the engine to rev up.
Another possibility is that there is a problem with the fans themselves. If they are not working properly, they may not be able to cool the engine effectively and could cause it to overheat, which would cause the fans to turn on at full speed.
I wonder where is located Trailer Control Unit (1K0907383B) in Skoda Octavia 2 1Z5 Combi ?
I have a problem with fuse 6+8+12( instruments audio and canbus not shutting down power in sleep mode and draining the battery. If I raise the voltage with a charger to +. 14.5 the system will switch off . These alone will re energise @ approx 12.5 v any help would be useful ( body control module? )
Hello, I have a Skoda Octavia 2 2012 1.6 tdi with this error :
00187:012 ACTIVATION FOR POWER SUPPLY RELAY ( TERMINAL 75X) ELECTRICAL ERROR IN CIRCUIT
Can You guys help me please? What do I need to check or change?
Thank You!
Hi Skoda octavia 2005 drivers electric seat not operating any ideas thank you