PRE-RELEASE
Central electrical unit 342 in engine compartment (UEC)
| Central electrical unit 342 in engine compartment (UEC) |
| Location |
The central electrical unit is located between the battery and the left front wing.
| Main task |
To be the central electrical unit for the front part of the car and manage certain parts of the logic for front lighting and visibility and signal system.
Distributes current from the battery to other central electrical units.
The central electrical unit contains the transport fuse (fuse 37).
| Type |
The central electrical unit with relays, maxi and micro fuses as well as integrated control module for logic functions.
| Connection |
The fuse box is connected to the battery and to the grounding points G30A, G31 and G33S. The central electrical unit is connected via three contacts at its bottom to the engine network, front network and main network.
Power circuit for +30
Power circuit for +15
The engine network is connected via contact M
The main network is connected via contact B
| Fuses |
The central electrical unit can be equipped with more fuses than those that have a function as listed below. They are then not connected to the car's wiring harness.
| No. | Amp | Type | Function | Illustration |
| 1 | 30 | +30 | Z19 (EDC16) via main relay 229: Control module, EDC16 (595B) Glow plug control module (596) Boost pressure control valve, charge air (179a) Heating element, heated oxygen sensors (271) Actuator unit, combustion circulation (403) Actuator unit, throttle body (604) Boost pressure control valve, EGR (606) |
|
| 2 | 10 | +30 | Control module, TCM (502a/b) Control module, Trionic T8 (589A) Control module, ME9 (608B) |
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| 3 | 20 | +30 | Horn |
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| 4 | 10 | +15 | Control module TCM, AF 40 (502b) Battery disconnect switch (700) B207 (T8): Control module, Trionic T8 (589A) B284 (ME9): Control module, ME9 contact B (608B) Mass air flow sensor (205) Z19 (EDC16): Control module, EDC16 (595B) Module, mass air flow sensor (686) Water level switch, fuel filter (692) Unit, power steering unit (745) |
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| 5 | -- | -- | ||
| 6 | 10 | +30 | Control module, TCM, FA 57 (502a) Contact immobiliser, automatic (77) Gear selector, automatic (245) Immobiliser contact (411) |
|
| 7 | 7,5 | +15 | Control module, headlamp, left (628FL) |
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| 8 | 5 | +15 | Unit, vacuum pump (459) |
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| 9 | 10 | +15 | Control module, AFL |
|
| 10 | -- | |||
| 11 | -- | |||
| 12 | 10 | +30 | Washer fluid pump, rear windscreen (63c) |
|
| 13 | 10 | +30 | EDC16: A/C-compressor (170) |
|
| 14 | -- | |||
| 15 | 30 | +30 | Engine, pump, high pressure, headlamp (668) |
|
| 16 | 30 | Lighting left front: Side indicators, dipped beam, fog lamps Lighting right front : Parking lamps, indicators, side indicators, main beam |
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| 17 | 30 | Windscreen wiper motor, low speed |
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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) |
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| 20 | 10 | +15 | Motors, manual headlamp aligning (280) Control module, AHL (664) Control module, headlamp, right (682FR) |
|
| 21 | -- | |||
| 22 | 30 | +30 | Washer fluid pump, windscreen (63b) |
|
| 23 | -- | |||
| 24 | 20 | +30 | Auxiliary lamps |
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| 25 | 20 | +30 | Front amplifier (354F) |
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| 26 | 30 | +30 | Lighting left front: indicators, parking lamps, main beam Lighting right front: dipped beam, fog lamps |
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| 27 | 60 maxi 20 maxi | +30 | B207 (T8): Main fuse for central electrical unit 727 Z19 (EDC16): fuel pump (323) |
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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 cargo compartment central electrical unit | |
| 30 | 60 maxi | +30 | Main fuse 1 for instrument panel's central electrical unit | |
| 31 | 40 maxi | +30 | Starter motor's solenoid via relay 517 |
|
| 32 | 60 maxi | +30 | Main fuse 2 for instrument panel's central electrical unit | |
| 33 | 40 maxi | +30 | Control module, TCS/ESP (382/671) |
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| 34 | 60 maxi | +30 | Main fuse 1 for rear central electrical unit | |
| 35 | 30 maxi | +30 | B207: Cooling fan B248: Unit, vacuum pump |
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| 36 | 20 maxi | +30 | B207: Cooling fan EDC16: Heating element, fuel filter |
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| 37 | 60 maxi | +30 | Transport fuse. Main fuse 3 for rear central electrical unit |
| Relays |
The central electrical unit can be equipped with more relays than those that have a function as listed below. They are then not connected to the car's wiring harness.
| Location | No. | Denomination | Illustration | Diagram |
| R1 | 432b | Relay, washer fluid pump, windscreen |
|
|
| R2 | 156 | Relay, A/C compressor (Simtec and EDC16) |
|
EDC16 |
| R3 | -- | |||
| R4 | 641 | Relay, pre heating diesel |
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| R5 | 675 | Relay, auxiliary lamp |
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| R6 | 68 | Relay, fan |
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| R7 | 229 | Main relay, engine management system (Simtec and EDC16) |
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| R8 | 517 | Relay +50 |
|
B207 B284 Z19 |
| R9 | 83 | Relay, windscreen wiper |
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| R10 | 432c | Relay, washer fluid pump, rear windscreen |
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| R11 | 757F | Relay, +15, UEC |
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| R12 | 709 | Relay, windscreen wiper, full/half speed |
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| R13 | -- | |||
| R14 | 667 | Relay, washer fluid pump, high pressure, headlamp |
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| R15 | -- | |||
| R16 | -- |
