Electronic issues after flooding.

[JoseBR]

Hi,
First of all thank you for accepting my sign up in this forum.

I need urgent support to fix some electronic failures in a JL from a car rental.

The car got flooded in a salty puddle. It simply slipped to the left on a narrow road. The car wasn't totally underwater or completely inside.
It was dense mud from a salt pan, and it got caught on one side.
Water entered the driver's foot compartment.

Important: It did not reach the ECU and did not go to the right side as it was tilted. But the connectors of the driver's feet were covered by water.

Failures noticed after leveling the car out of the puddle:
- power top not closing properly while vehicle stopped (error message: too high speed to retract the top).
- blind spot alert not operative.
- Main screen switching on & off continuously.
- electric step not responding to door open/close.
- door lock button not working.

We have removed all mud and salty water from the carpet, but we have found some connectors which are damaged.

The most damaged connector is the one that connects the door and the vehicle (see image below).

This connector is specified in the wiring diagram, found in this forum as:

I cleaned this connector with WD40 for contacts, and the electric step started responding sometimes to door opening & close, but other issues are still showing.

I guessed is better to replace the connectors, but I only found the cables set corresponding to the door (product example image attached).
It costs around 100€, not bad.

BUT I can't find the reference of the cables set that goes from this connector in to the car.
Does anyone have a wiring diagram to identify it? (PINK in the diagram attaced above)

And one of my most important doubts:
I can understand or relate that the electric step, blind spot alert and the lock button aren't working because all these get supply from the door connector.
I have checked all other connectors where water has arrived, and it was all in good condition. Didn't find any damaged pins.

BUT what about the other failures? Can it be a security protocol of the car when it feels water inside? Could it be fixed using an OBD scan?

We need the car working correctly as soon as possible.

Thanks to all members here, I'm happy to have found this forum.
I will appreciate any help for it.
And won't doubt offering some great deals for everyone who visits us!
By the way, we're in Ibiza! Spain.


Best,
Jose.

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[Reinen]

The JL is designed to be submerged in water up to the top of the lower door hinge. (It says so on the tailgate plaque) There is also a drain in the floor pan for when it fills with water, which is likely plugged. It doesn't sound like you did anything that the JL isn't designed to do. It's made for this.

Are you sure the JL didn't have any problems before you rented it?

 

[JoseBR]

The JL is designed to be submerged in water up to the top of the lower door hinge. (It says so on the tailgate plaque) There is also a drain in the floor pan for when it fills with water, which is likely plugged. It doesn't sound like you did anything that the JL isn't designed to do. It's made for this.
Are you sure the JL didn't have any problems before you rented it?

Hi, thanks for your reply.

Few things to add to the case:
- The water got a bit higher than the lower door hinge. The car was pretty tilted to the left, so it did not reach the central console, but the left side components were submerged for some time.
- I removed the drain caps immediately after taking the car out of the puddle.
- The car was perfect before, as I'm the one who rents it.. hehe. I'm just trying to fix it soon as possible to keep the car working again asap.

Thanks again.

 

[JoseBR]

I have seen these comments in other posts:

If the driver's side was deep enough in the water, your PCM may have been submerged. (It is located above the tire towards the front in the engine bay), This would explain a lot of the issues you are having.
I'll check if the water got there. It was close to the wheel arch, so maybe.

Headlights, signals, radio, instrument cluster, unconnect, wipers, back up cam, interior cab lights, brake lights and rear signals, horn works with the power door locks.
Does it mean the other issues can be caused by the door connector?

 

[TheBirdie72]

I don’t see the problem…?

 

[JoseBR]

I can't find the replacement of the wiring so I will try splicing the wires. Hope it works at least until I replace the wires set with new connectors.

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