laguna 1 2.2d non start

**johnnyh33** · 14th June, 2019, 11:33 PM

hi all,

got an old laguna that won't start anymore, no feed to stop solenoid.

can't find a wiring diagram anywhere for this model, 1995 g8t 706, in think.

the diagrams that i have got are 1998 onwards and show an injection computer but i don;t think this has one. also can't tell if it has immobiliser or not.

any help would be much appreciated,

**Meat-Head** · 16th June, 2019, 07:40 AM

Sorry, just mention Laguna, has made my head spin, now feel sick and dizzy

Look at back of diesel pump, do you see black box with 3 wires then yes going to be module
immboliser.

chances are at that age will be minimum of 20 rotten high resistance connections
even if you get correct diagram it will be wrong anyway

**Louislesinge** · 16th June, 2019, 10:12 AM

Hi,
Let's illustrate it Meat-Head!
In solenoid picture you see the black box named 4, in solenoid2 you see the simply stop solenoid named 8. In case you have simply solenoid, open the fuses and relays box near the battery and find an ignition + not cuted under starting motor and plug it on the solenoid.
Greetings,

**johnnyh33** · 16th June, 2019, 11:31 AM

i'm not at home at the minute so i can't check but iirc the pump has a normal looking solenoid and wire from it goes to an insulated bolt on the pump bracket then directly into the loom. also a couple of pots or microswitches on the pump.

the bugger started when it came to me but after takimg the battery out to test the coolant sensors and fan switch it starts only when i put a 12v lead on the solenoid.

the 1998 diagram i've got shows an ecu but another diagram i found on the internet shows a simple keyswitch-fuse-solenoid circuit. i suppose i am looking for something inbetween those two that probably doesn't exist

**johnnyh33** · 16th June, 2019, 11:39 AM

when i jump directly to solenoid (from battery) the car starts but it seems the instrument lights come on half brightness

**Meat-Head** · 16th June, 2019, 12:05 PM

Think next step do full light/wiper check see what else packed up.

can you upload photo of said solenoid, just that some times can be excess fuel

**Louislesinge** · 16th June, 2019, 12:14 PM

Originally Posted by johnnyh33

when i jump directly to solenoid (from battery) the car starts but it seems the instrument lights come on half brightness

Beware not to do it when ignition is turned off cause in this state you send ignition to all the car from little solenoid wire!

**johnnyh33** · 16th June, 2019, 09:09 PM

that is probably when i saw the dash lights half lit, when i put the cable on the solenoid and before i had turned on ignition. so maybe just a new wire from the engine fuse box will do. thanks guys. will let you knwo tomorrow.

**Louislesinge** · 17th June, 2019, 09:37 AM

Re,
Ok, ,cut old wire first. On Renault cars + ignition should be yellow wire.
Greetings,

**johnnyh33** · 17th June, 2019, 09:59 AM

ok, so all the underbonnet fuses are live all the time so no good. followed the stop sol. wire back to the fuse box and it arrives at this 'general module comfort relay' in the photo below.

**johnnyh33** · 17th June, 2019, 01:14 PM

I can't find out anything useful about this piece of shite relay module except that it does (at least) the central locking and stop sol. The manuals i've got do not have it at all and it doesn't have any way of entering a pin code (dash has no screen or anything) so i guess it enables the stop sol as long as the doors have been unlocked. but locking/unlocking doesn't help.

i have bypassed it now and the car starts and stops but i would love to see a wiring diagram to find out what is actually going on there.

**Meat-Head** · 17th June, 2019, 01:42 PM

So it DID have an immobiliser in former life and it’s been hacked off

so chances are there’s a multi plug that’s gone rotten

you got code from vin and entered using lock unlock button

**johnnyh33** · 17th June, 2019, 03:44 PM

get code from vin? what software? another look at dialogys and it seems a code can be entered by holding down accelerator and pressing button on indicator stalk.

hopefully don't need it now as the bypass means it is starting and stopping on the key. central lock works from internal button but not remote but i assume that didn't work before although i didn't check before.

**Louislesinge** · 17th June, 2019, 04:55 PM

Re,
Now solenoid is without antitheft you can try to find immobox and key, just plug it and remote will work again.
Greetings,

**johnnyh33** · 17th June, 2019, 11:05 PM

there isn't a transponder ring on the ignition...i don't know shit but i reckon this might be the most basic stone-age immobiliser the world has ever seen. that's why there's no wiring diagram cos renault are a little bit ashamed of it and want it to disappear without documentary evidence once the last laguna mk 1 is scrapped (shouldn't be that long now).