Horn stucked, starts and stops, ABS&P/S flashing

[DanieLocker]

Hi All,

I have a 2008, petrol, automatic, 5 doors Aygo. 2 weeks ago I've found high amount of water in the boot and at the rear footwell. 1 week later the horn has stucked (going off), I've disconnedted the Battery and removed the fuse of the horn. After these actions, the car starts, but stops after 1s and ABS & P/S lights are flashing. I've found a topic created many years ago mentioning the same symptoms, but there was no conclusion on the root cause. Any help is really appreciated.

 

[flash22]

Can you hear the fuel pump prime ?

Where was the water coming in from, front or rear ? is the boot wheel well dry, when you say rear footwell as in the rear passengers put there feet or the boot ?

I take it the Aygo is LHD ?

[DanieLocker]

20 minutes ago, flash22 said:

Can you hear the fuel pump prime ?

Where was the water coming in from, front or rear ? is the boot wheel well dry, when you say rear footwell as in the rear passengers put there feet or the boot ?

I take it the Aygo is LHD ?

Yes, I can hear the fuel pump prime.

Yes, it is a left hand drive (I'm from Hungary).

Front footwell was (is) dry, water was coming from the rear, I assume it is the brake light and side doors.

Water has been removed from the boot, let's say it's dry now. Rear right passenger footwell was really wet, left not so, but was also affected. I've attached some images.

Do you think that the horn ON, no start issue is connected to the leaking?

I do really appreciate your help.

BTW. When the horn was ON, first I've disconnected the Battery and after that I removed the fuse cover above the steering wheel, because first I did not know thaat the fuse of the horn is in front. I'm thinking, maybe I've accidentially disconnected the immobilizer?

[DanieLocker]

1 minute ago, DanieLocker said:

Yes, I can hear the fuel pump prime.

Yes, it is a left hand drive (I'm from Hungary).

Front footwell was (is) dry, water was coming from the rear, I assume it is the brake light and side doors.

Water has been removed from the boot, let's say it's dry now. Rear right passenger footwell was really wet, left not so, but was also affected. I've attached some images.

Do you think that the horn ON, no start issue is connected to the leaking?

I do really appreciate your help.

BTW. When the horn was ON, first I've disconnected the battery and after that I removed the fuse cover above the steering wheel, because first I did not know thaat the fuse of the horn is in front. I'm thinking, maybe I've accidentially disconnected the immobilizer?

Furthermore, today I could find one damaged I guess vacuum pipe (see below image).

[DanieLocker]

Now as it is around -5C, the rear footwell is frozen. I can not park in a warm garage unfortunately...

[flash22]

You will need to pull the interior out and dry it out, the rear lights and 3rd brake light are common leak points on the Mk1, not so much the door seals, is the carpet dry above/around the pedals ?

You may have pulled the wrong fuse

[DanieLocker]

1 hour ago, flash22 said:

You will need to pull the interior out and dry it out, the rear lights and 3rd brake light are common leak points on the Mk1, not so much the door seals, is the carpet dry above/around the pedals ?

You may have pulled the wrong fuse

We will work on the leaking issue, I've already ordered a complete sealing package.

But now the bigger problem is, that the car is not moving, so first I would like to solve the "motor starts but cuts" off issue with flashing ABS & P/S.

We will have time to debug the car today, will check all fuses.

[flash22]

water and electricity do not mix if that water is on top of the carpet there must be a load more under it and in the front under the insulation there is no telling what connectors and wiring are like, there are some major junctions in the driver's footwell

no point in chasing problems until you know it's dry

time to check for codes and see if anything is related, the immobilizer uses 3 different power feeds if a loom or connector is wet it will blow a fuse or 2