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This is only applicable to mk1-6 fortwos as the mk7 has all functions integrated into the SAM unit. If you car has a ZEE unit then you will have this additional engine fuse box.
The engine electrical centre is located under the carpet beneath the left seat.
It is held with 2 10mm nylon nuts to the floorpan and is easily removed. To remove the cover, there are three clips located as follows:
Pull each black clip back whilst pulling the lid upwards.
This reveals the engine fuses and relays.
The functions are as follows:
| Petrol |
| Location |
Component |
Colour |
Value |
Function |
| S1 |
Fuse |
Blue |
15 |
Charge air cooler, aircon compressor magnetic clutch |
| S2 |
Fuse |
Red |
10 |
Fuel pump |
| S3 |
Fuse |
Blue |
15 |
Injectors, MEG |
| S4 |
Fuse |
Red |
10 |
Tank vent valve, oxygen sensor |
| P |
Relay |
- |
- |
Electric fuel pump |
| Q |
Relay |
- |
- |
Automated manual transmission |
| R |
Relay |
- |
- |
Main relay |
| S |
Relay |
- |
- |
charge air cooler fan |
| T |
Relay |
- |
- |
Starter motor |
| U |
Relay |
- |
- |
Aircon compressor magnetic clutch relay |
| Diesel |
| Location |
Component |
Colour |
Value |
Function |
| S1 |
Fuse |
Blue |
15 |
Charge air cooler, aircon compressor magnetic clutch |
| S2 |
Fuse |
Red |
10 |
Fuel pump |
| S3 |
Fuse |
Blue |
15 |
Injectors, electrical cut off, pressure valve |
| S4 |
Fuse |
Red |
10 |
Glow time control |
| P |
Relay |
- |
- |
Electric fuel pump |
| Q |
Relay |
- |
- |
Automated manual transmission |
| R |
Relay |
- |
- |
Main relay |
| S |
Relay |
- |
- |
charge air cooler fan |
| T |
Relay |
- |
- |
Starter motor |
| U |
Relay |
- |
- |
Aircon compressor magnetic clutch relay |
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