I need some help. Due to divorce and crazy ex reasons, it sat at our old house for 4 years. It ran fine back in 2020 and was in excellent shape. 4 years later Im trying to get it started, put a new battery in her and nothing lights up. The brake lights work, but that seems to be it, interior and headlights are inop, car doesnt seem to be getting the power.
Any easy fuses or anything I can check?

Really hoping for an easy fix although I fear not.

Thanks!

 

Any signs of rodent damage? Drop the under shroud and see if it’s full of droppings. May need to get it towed to a shop and have them look at the wiring harness. Good shop will spot the damage and be able to repair. Is the car in good shape otherwise? 4 years is a long time to sit. You will likely need to pour a bottle of fuel conditioner in the tank as well.

 

In addition to what socketz67 suggested, I would:

1. Check all the fuses at the positive battery cable (these are slightly known to corrode over time);
2. Check that the ground connections are clean and tight (especially at the negative battery cable);
3. Check that the IPDM/er is clean/ dry (this is the large fuse block to the left of the battery mounted on the fender wall);
4. Check for water under the front footwells especially the passenger-side; and
5. Check the fuses at the driver-side fuse block especially "ELEC PARTS- BAT" and "ELEC PARTS- IGN."

Though four years is a considerable amount of time, the electrics should still power up (horn, lights, seats, locks) when the battery is connected. Be sure to try all of these tests with the fob inserted into the slot. I do not know if the iKey loses its pairing with the BCM after a extended period of time.

While four years is a long time, my old Honda sat for almost 10 years before I was able to get back to it and it fired right up. Different beast/ circumstances but it takes a lot to kill these cars.

 

I dont see any rodent damage, but doesn tmean its not there. I might have it towed to a nearby shop.

 

This is good advice.

I havent done #3, cant seem to inspect but Ill try again today.

#4 there IS a lot of water in the passenger footwell. I think due to sunroof leak? What is the significance of this?

#5 Ill have to check these as well.

3. Check that the IPDM/er is clean/ dry (this is the large fuse block to the left of the battery mounted on the fender wall);
4. Check for water under the front footwells especially the passenger-side; and
5. Check the fuses at the driver-side fuse block especially "ELEC PARTS- BAT" and "ELEC PARTS- IGN."

 

Water ingress on the passenger-side is of concern due to the electronic modules that are susceptible to water damage - specifically the Body Control Module (BCM) which handles a majority of the cars systems. This would be the likely reason your car is "bricked."

If the BCM got "saturated" then likely it will need to be replaced. Easy enough but you'll need a qualified locksmith to pair your keys to the replacement.

You can try removing the BCM, checking for signs of corrosion, and that the connectors are free of dirt / corrosion. Some have had luck letting it "dry out" in the sun and cleaning the terminal pins. Miracles can happen and stranger things happen all the time.