No spark
2008 Vauxhall Astra 1.8 petrol

had alternator replaced due to the old one failing (bushes failed when driving) engine now not firing. No fault codes are registering on the dash as the engine hasn't fired since. Could it have damaged other electrical circuits? i.e crankshaft sensor? Also has new ignition coil which has been tested on another astra and works fine.
Problem added: Jul 2, 2022 (1 month ago)

Vauxhall Astra 2008
Variant: 1.8 petrol
Problem Category
Electrics, ECU, Warnings & Lights

Replies and fixes

Check all fuses , if o.k , scan with Tech 2/3 or similar for fault codes

Vauxhall Astra 5th Generation (Astra H) (2004 – 2010) – fuse box diagram
Year of production: 2004, 2005, 2006, 2007, 2008, 2009, 2010



Fusebox in luggage compartment


The fusebox is located on the left side of the luggage compartment behind a cover.


Fusebox, version A
Vauxhall Astra 5th Generation - fuse box - luggage compartment - version A
Vauxhall Astra 5th Generation – fuse box – luggage compartment – version A
Number Circuit Rating
1 Luggage compartment socket 15
2 Rear socket 15
3 Electric windows, front 30
4 Electric windows, rear 30
5 Heated exterior mirrors 7,5
6 Air conditioning system 10
Fusebox, version B
Vauxhall Astra 5th Generation - fuse box - luggage compartment - version B
Vauxhall Astra 5th Generation – fuse box – luggage compartment – version B
Number Circuit Rating
1 Electric windows, front 25
2 — —
3 Instruments 7,5
4 Heating, air conditioning system, Electronic Climate Control (ECC) * 5
5 Airbags 7,5
6 — —
7 — —
8 — —
9 — —
10 — —
11 Heated rear window 25
12 Tailgate wiper 15
13 Parking distance sensors 5
14 Heating, air conditioning system 7,5
15 — —
16 Seat occupancy recognition, Open&Start system 5
17 Rain sensor, air quality sensor, tyre pressure monitoring system, interior mirror 5
18 Instruments, switches 5
19 — —
20 CDC 10
21 Heated exterior mirrors 1) 7,5
22 Sunroof 20
23 Electric windows, rear 25
24 Diagnostics plug 7,5
25 — —
26 Electrically retractable exterior mirrors 7,5
27 Ultrasonic sensor, Vauxhall alarm system 5
28 — —
29 Cigarette lighter, front socket 15
30 Rear socket 15
31 — —
32 — —
33 Open&Start system 15
34 Sunroof, TwinTop 25
35 Rear socket 15
36 Towing equipment 20
37 Courtesy light 5
38 Central locking system, clamp 30 25
39 Seat heater (left) 15
40 Seat heater (right) 15
41 — —
42 — —
43 — —
44 — —
1) Not in conjunction with Vauxhall alarm system *



Fusebox in engine compartment
The fusebox is at the front left side of the engine compartment. To open the cover, release the catch by inserting a screwdriver into the opening as far as it will go and swivelling it to the side. Open the cover upwards and remove.

Fuse layout, version A
Vauxhall Astra 5th Generation - fuse box - engine compartment - version A
Vauxhall Astra 5th Generation – fuse box – engine compartment – version A
Number Circuit Rating
1 ABS 20
2 ABS 20
3 Interior fan climate control system 30
4 Interior fan, heating, air conditioning system 30
5 Radiator fan 1 1) 30
41
6 Radiator fan 2 1) 20
30
40
7 Central locking system 20
8 Windscreen wash system, tailgate 10
9 Heated rear window, heated exterior mirrors 30
10 Diagnostics plug 7,5
11 Instruments 7,5
12 Mobile telephone, digital radio, Twin Audio, display 7,5
13 Courtesy light 5
14 Windscreen wiper 30
15 Windscreen wiper 30
16 Horn, ABS, brake light switch, air conditioning system 25
17 Diesel filter 25
Air conditioning system 20
18 Starter 25
19 Transmission electronics 30
20 Horn 15
21 Engine electronics 20
22 Engine electronics 7,5
23 Headlight range adjustment 5
24 Fuel pump 15
25 Reversing lights 5
26 Engine electronics 10
27 Heating, air conditioning system, air quality sensor 7,5
28 — —
29 Power steering 5
30 Engine electronics 10
31 Tailgate wiper 15
32 Brake light switch 5
33 Headlight range adjustment, light switch, clutch switch, instrument assembly, driver’s door module 5
34 Control unit steering column module 7,5
35 Infotainment system 20
36 Cigarette lighter, front socket 15
1) Different ratings depending on engine and equipment level.

Fuse layout, version B
Vauxhall Astra 5th Generation - fuse box - engine compartment - version B
Vauxhall Astra 5th Generation – fuse box – engine compartment – version B
Number Circuit Rating
1 ABS 20
2 ABS 30
3 Interior fan climate control system 30
4 Interior fan, heating or air conditioning system 30
5 Radiator fan 1 1) 30
40
6 Radiator fan 2 1) 20
30
40
7 Windscreen wash system 10
8 Horn 15
9 Headlight wash system 25
10 — —
11 — —
12 — —
13 Front fog lights 15
14 Windscreen wiper 30
15 Windscreen wiper 30
16 Electronics control units, Open&Start system, ABS, brake light switch, TwinTop 5
17 Diesel filter heating 25
18 Starter 25
19 Transmission electronics 30
20 Air conditioning system 10
21 Engine electronics 20
22 Engine electronics 7,5
23 Adaptive Forward Lighting, headlight range adjustment 10
24 Fuel pump 15
25 Transmission electronics 15
26 Engine electronics 10
27 Power steering 5
28 Transmission electronics 5
29 Transmission electronics 7,5
30 Engine electronics 10
31 Adaptive Forward Lighting, headlight range adjustment 10
32 Brake system, air conditioning system, clutch switch 5
33 Adaptive Forward Lighting, headlight range adjustment, light switch 5
34 Control unit, steering column module 7,5
35 Infotainment system 20
36 Mobile telephone, digital radio, Twin Audio, display 7,5
1) Different ratings depending on engine and equipment level.
Answered Jul 2, 2022 (1 month ago)

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