Underhood electrical centre 342 (UEC)
| Underhood electrical centre 342 (UEC) |
| Location |
The main fuse box is located between the battery and the left-hand front wing.
| Main function |
To be the main fuse box for the front of the car and take care of certain parts of the logic for the front lighting as well as visibility and signal systems.
Distributes power from the battery to the other main fuse boxes.
The main fuse box contains the transport fuse (fuse 37).
| Type |
Main fuse box with relays, maxi and micro fuses and built-in control module for logic functions.
| Electrical connections |
The fuse box is connected to the battery and to the grounding points G30A, G31 and G33S. The main fuse box is connected via three contacts in the bottom of the engine harness, front harness and main harness.
Voltage circuit for +30
Voltage circuit for +15
The engine harnesses are connected via contact M
The main harness is connected via contact B
| Fuses |
The main fuse box may be equipped with more fuses than those that have a function as listed below. In which case they are not generally connected to the car's wiring harnesses.
| No. | Amp | Type | Function | Illustration |
| 1 | 30 | +30 | Z19 (EDC16) via main relay 229: Control module, EDC16 (595B) Glow plug control module (596) Charge air solenoid valve (179a) Heating element, oxygen sensor (271) Actuator, combustion circulation (403) Throttle body actuator (604) Solenoid valve, EGR (606) |
|
| 2 | 10 | +30 | Control module, TCM (502a/b) Control module, E39 (589A) |
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| 3 | 20 | +30 | Horn |
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| 4 | 10 | +15 | Transmission control module TCM, AF 40 (502b) Battery disconnector (700) LHU/A20NFT: Control module, E39 (589A) Z19 (EDC16): Control module, EDC16 (595B) Unit, mass air flow sensor (686) Level switch, water, fuel filter (692) Power steering system unit (745) Clutch switch, start inhibitor (411) |
|
| 5 | - | - | ||
| 6 | 10 | +30 | TCM, FA 57 (502a) Starter motor interlock switch, automatic (77) Gear selector, automatic (245) Starter motor interlock switch (411) |
|
| 7 | 7.5 | +15 | Control module, headlamp, left (628FL) |
|
| 8 | 5 | +15 | Unit, vacuum pump (459) Control module EDC16 Diesel (595B) |
|
| 9 | 10 | +15 | AFL control module |
|
| 10 | - | |||
| 11 | - | |||
| 12 | 10 | +30 | Washer fluid pump, rear window (63c) |
|
| 13 | 10 | +30 | EDC16: A/C compressor (170) |
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| 14 | +30 | Battery sensor (343) |
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| 15 | 30 | +30 | High pressure headlamp pump motor (668) |
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| 16 | 30 | Illumination left front: Side direction indicator, dipped beam, fog light Illumination right front : Position light, direction indicator, side direction indicator, main beam |
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| 17 | 30 | Windscreen wiper motor, low speed Starter motor (4) |
|
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| 18 | 30 | Windscreen wiper motor, high speed |
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| 19 | 20 | +30 | Parking heater, diesel (597) Connection, accessories (711) |
|
| 20 | 10 | +15 | Motors, manual headlamp levelling (280) Control module, AHL (664) Control module, headlamp, right (682FR) |
|
| 21 | Control module EDC16 Diesel (595B) | |||
| 22 | 30 | +30 | Washer fluid pump, windscreen (63b) |
|
| 23 | - | |||
| 24 | 20 | +30 | Spotlights |
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| 25 | 20 | +30 | Front amplifier (354F) |
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| 26 | 30 | +30 | Illumination left front: direction indicator, position light, main beam Illumination right front: dipped beam, fog light |
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| 27 | 60 maxi 20 maxi | +30 | LHU/A20NFT: Main fuse for main fuse box 727 Z19 (EDC16): Fuel pump (323) Switch, clutch, immobiliser (411) |
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| 28 | 40 maxi | +30 | Control module, TCS/ESP (382/671) |
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| 29 | 60 maxi | +30 | Main fuse 2 for the luggage compartment's main fuse box | |
| 30 | 60 maxi | +30 | Main fuse 1 for the instrument panel's main fuse box | |
| 31 | 40 maxi | +30 | Starter motor solenoid via relay 517 |
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| 32 | 60 maxi | +30 | Main fuse 2 for the instrument panel's main fuse box | |
| 33 | 40 maxi | +30 | Control module, TCS/ESP (382/671) |
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| 34 | 60 maxi | +30 | Main fuse 1 for the rear main fuse box | |
| 35 | 30 maxi | +30 | LHU/A20NFT: Radiator fan |
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| 36 | 20 maxi | +30 | LHU/A20NFT: Radiator fan EDC16: Heating element, fuel filter |
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| 37 | 60 maxi | +30 | Transport fuse. Main fuse 3 for the rear main fuse box |
| Relays |
The main fuse box may be equipped with more relays than those that have a function as listed below. In which case they are not generally connected to the car's wiring harnesses.
| Location | No. | Description | Illustration | Diagram |
| R1 | 432b | Windscreen washer fluid pump relay |
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| R2 | 156 | A/C compressor relay (EDC16) |
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EDC16 |
| R3 | - | |||
| R4 | 641 | Relay, preheating, diesel |
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| R5 | 675 | Relay, extra lights |
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| R6 | 68 | Horn relay |
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| R7 | 229 | Main relay, engine management system (EDC16) |
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| R8 | 517 | Relay, +50 |
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LHU/A20NFT Z19 |
| R9 | 83 | Relay, windscreen wiper |
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| R10 | 432c | Relay, washer fluid pump, rear window |
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| R11 | 757F | Relay, +15, UEC |
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| R12 | 709 | Full/half speed windscreen wiper relay |
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| R13 | - | |||
| R14 | 667 | High pressure headlamp washer fluid pump relay |
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| R15 | - | |||
| R16 | - |
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