astra cdti no start

[cat100984]

Hi i have a vauxhall astravan g 1.7 cdti. iv got a problem when i turn my keys on there is no management light or spanner light. it started about 2 weeks ago and it didnt happen everyday, but when they dont come on the van wont stop. basically no connection from ecu. in thought it may have been ecu so i changed that, it worked for a day and now back with no lights

[cat100984]

any ideas anyone

[kiethton]

Had similar with my old astra 1.7, was on an '07 plate but wouldn't start when warm - nowhere could fix it (without quoting £££) so i part exchanged it.

[cat100984]

Can Anyone else help. No engine light when I turn ignition on?
No connection to ecu?

[Penelope Stopit]

Have you a wiring diagram?

[cat100984]

Hi no, everynow and then the lights reappear on dash and the van starts, it’s got me on this one. Iv been a macabic for 15 years and never come across anything like this,

[Penelope Stopit]

Ok, we need to find a diagram
What is the year of manufacture?

[cat100984]

its a 2006, but still the mk4 G

[Penelope Stopit]

See here http://www.autogenius.info/vauxhall-astravan-2004-...

Clutching at straws without a diagram

First off, at the above link check what diagram matches to your van

With the van operating correctly, check what voltages are at all the engine fuses

Now when the fault is there, check to see if there is a difference in the earlier measured voltages at the engine fuses

It's obviously very important that you know the fuse layout is correct before measuring anything

[Penelope Stopit]

Here is a handbook but it may not be for your van, the fuse boxes are shown under self help and look similar to those in the above link

https://www.vauxhall.co.uk/content/dam/Vauxhall/Eu...

Are there any fault codes?

Edited by Penelope Stopit on Tuesday 20th February 17:42

[cat100984]

thanks ill be doing all these checks tomorrow, the diagrams you sent are for the mk5 mines the mk4.
they started making the mk5 in 2004 but didnt stop making the astra van mk4 till 2006