PRE-RELEASE
Engine bay electrical centre 342 (UEC)
| Engine bay electrical centre 342 (UEC) |
| Location |
The electrical centre is located between the battery and the left front wing.
| Main function |
Act as the electrical centre for the front of the car and handle some parts of the logic for the front lighting as well as the visibility and signal systems.
Distributes current from the battery to the other electrical centres.
| Type |
Electrical centre with relays, maxi and micro-fuses and integrated control module for logic operations.
| Connection |
The fuse box is connected to the battery and to grounding points G30A, G30B and G33S. The electrical centre is connected via three switches in its base to the engine harness, front harness and main harness.
The engine harness is connected via switch M
The main harness is connected via switch B
Power supply circuit for +30
Power supply circuit for +15
| Fuses |
The electrical centre can be equipped with more fuses than those that have a function according to the list below. They are not then generally connected to the car's wiring harness.
| No. | Amp | Type | Function | Illus. |
| 1 | 30 | +30 | Diesel via main relay 229: PSG16 Glow plug control module Charge air control valve Solenoid valve, combustion circulation Solenoid valve, engine shut-off |
|
| 2 | 10 | +30 | Trionic T8 TCM |
|
| 3 | 20 | +30 | Horn |
|
| 4 | 10 | +15 | petrol: Trionic T8 Battery disconnect switch diesel: PSG16, switch K Mass Air Flow Sensor, diesel EGR unit |
|
| 5 | -- | |||
| 6 | 10 | +30 | TCM Gear selector, automatic Immobilizer switch |
|
| 7 | -- | |||
| 8 | 20 | +15 | Fuel filter, diesel |
|
| 9 | -- | |||
| 10 | -- | |||
| 11 | -- | |||
| 12 | -- | |||
| 13 | 10 | +30 | A/C compressor (diesel) |
|
| 14 | -- | |||
| 15 | 30 | +30 | Washer fluid pump, headlamp |
|
| 16 | 30 | Lighting, left front: Side direction indicators, dipped beam, fog light Lighting, right front : Position lamp, direction indicator, side direction indicator, main beam |
|
|
| 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 Auxiliary heater Connection, accessories |
|
| 20 | 10 | +15 | Motors, manual headlamp beam adjustment Automatic Headlamp Levelling |
|
| 21 | -- | |||
| 22 | 30 | +30 | Washer fluid pump, windscreen |
|
| 23 | -- | |||
| 24 | 20 | +30 | Auxiliary lamp Solenoid, screen, xenon lamp (US/CA/JP) |
|
| 25 | 20 | +30 | Front amplifier |
|
| 26 | 30 | +30 | Lighting, left front: direction indicator, position lamp, main beam Lighting, right front: dipped beam, fog light |
|
| 27 | 60 maxi | +30 | Glow plug control module |
|
| 28 | 40 maxi | +30 | TCS/ESP |
|
| 29 | 60 maxi | +30 | Main fuse 2 for rear electrical centre | |
| 30 | 60 maxi | +30 | Main fuse 2 for dashboard electrical centre | |
| 31 | 40 maxi | +30 | Starter motor solenoid via relay 517 |
|
| 32 | 60 maxi | +30 | Main fuse 1 for dashboard electrical centre | |
| 33 | 40 maxi | +30 | TCS/ESP |
|
| 34 | 60 maxi | +30 | Main fuse 1 for rear electrical centre | |
| 35 | 30 maxi | +30 | Radiator fans, high-speed |
|
| 36 | 20 maxi | +30 | Radiator fans, low-speed |
|
| 37 | 60 maxi | +30 | Transport lock. Main fuse 3 for rear electrical centre |
| Relays |
The electrical centre can be equipped with more relays than those that have a function according to the list below. They are not then generally connected to the car's wiring harness.
| Location | No. | Designation | Illus. | Diagram |
| R1 | 432b | Relay, washer fluid pump, windscreen |
|
|
| R2 | 156 | A/C compressor relay (diesel) |
|
|
| R3 | -- | |||
| R4 | -- | |||
| R5 | 666 | Relay, headlamp flasher |
|
|
| R6 | 68 | Horn relay |
|
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| R7 | 229 | Main relay, engine management system (diesel) |
|
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| R8 | 517 | Relay, +50 |
|
AUT MAN |
| R9 | 83 | Windscreen wiper relay |
|
|
| R10 | -- | |||
| R11 | 757F | Relay, +15, UEC |
|
|
| R12 | 709 | Relay, windscreen wiper, full/half speed |
|
|
| R13 | -- | |||
| R14 | 667 | Relay, washer fluid pump, high-pressure, headlamp |
|
|
| R15 | -- | |||
| R16 | -- |
