Immobiliser issue

[Evan ditchburn]

So my Clio 172 ph2 2003 has an immobiliser issue, everything seems to work as it should, just the immobiliser light is flashing quickly and obviously won’t turn over, it’s had a new ecu uhc and keys and that hasn’t made a different. Checked the fuses in the engine bay, swapped the 3 black boxes around and tried again and still no luck. I got told that I’d need to unlock the ecu, but also got told that if I get the ecu unlocked that still won’t make a difference. Any advice or help would be very appreciated. Thanks!

 

[bloke]

fast flash is key not recognised, won't stop the car from turning over though. wiring problem.

 

[Evan ditchburn]

Guessing the wiring problem could be anywhere? Or could it just be to do with the fact I haven’t got a battery in I’m just connecting jumper cables to another car?

 

[White16valver]

Guessing the wiring problem could be anywhere? Or could it just be to do with the fact I haven’t got a battery in I’m just connecting jumper cables to another car?

Can you swap the battery from the other car into the Clio?

 

[william84]

Guessing the wiring problem could be anywhere? Or could it just be to do with the fact I haven’t got a battery in I’m just connecting jumper cables to another car?

I agree try sticking a battery in first ?

 

[Evan ditchburn]

Stuck the battery in and still no luck, it could possibly be a bad earth, so where would I be looking at for that?

 

[william84]

Think there is between 4-6 under the bonnet

 

[william84]

Can you turn the engine by hand?

 

[Evan ditchburn]

Haven’t tried that out I’ve had it plugged in and it came up with this..

 

[JamesBryan]

Decoder ring shagged.

 

[adamlstr]

Decoder ring shagged.

This, they're not coded though IIRC, so you can chuck a second hand one in.

 

[Evan ditchburn]

Cheap fix the decoder ring isn’t it?

 

[Evan ditchburn]

This, they're not coded though IIRC, so you can chuck a second hand one in.

As far as I am aware I have another one in the car I could give that a try and let you know

 

[adamlstr]

Yeah, and have a check on the loom for it as far as you can, checking for nips or breaks.

 

[Evan ditchburn]

Yeah, and have a check on the loom for it as far as you can, checking for nips or breaks.

So I changed it and tried it it didn’t work, I’m guess that’s probably because il need to clear the codes first

 

[White16valver]

Haven’t tried that out I’ve had it plugged in and it came up with this..View attachment 1428062

Are you wearing any clothes in that picture?? lol

 

[bloke]

will start with codes stored, it's a wiring problem.

 

[Evan ditchburn]

Are you wearing any clothes in that picture?? lol

Too warm for clothes ?

 

[Evan ditchburn]

will start with codes stored, it's a wiring problem.

Where abouts on the loom you think I should check? Could be anywhere really couldn’t it

 

[Subaru addict]

I had exact same thing a couple of months ago. Tried my spare key and it starts first time. The key I was normally using locks and unlocks on the remote but when put key in light flashes quickly and won't start. Spare works fine so tells me wiring is fine must be the key. Anyone know what can do about that?

 

[White16valver]

Do the keys need batteries for the immobiliser part?

 

[william84]

not that I know is it not a chip in the key that gives out signal?

 

[Evan ditchburn]

I’

I had exact same thing a couple of months ago. Tried my spare key and it starts first time. The key I was normally using locks and unlocks on the remote but when put key in light flashes quickly and won't start. Spare works fine so tells me wiring is fine must be the key. Anyone know what can do about that?

Even my spare key doesn’t work :/ I’m gonna have to flick through the loom somewhere and see what’s going on, I’ve got a spare loom if needs be so I can put that in and try again. It’s a pain in the arse now