Ok, I have a 03 Discovery 2 HSE7 with 170k I bought for my daughter and have done the following:

New oil pump and timing chain
New Valve Cover gaskets
New Water pump
New Plugs and Wires (The upgraded blue ones from Atlantic British)
New oil and filter, air filter, etc
New compressor and Bags
New thermostat
New Brake Booster and suction hose to it
New ABS Pump and all
New front left (drivers side) wheel sensor
Note: When I did the ABS and sensor it cleared the three amigos originally.

Was running well and no warning lights. I let it set for about 8-9 months before I got back on it to finish up. I keep coming out after 36 hours to a dead battery and have NO idea why.

Now my dash is lit up like a christmas tree now:

SRS (seats are out and getting detailed)
Hill descent control warning lamp lower left
Hill descent control warning lamp upper left green
Brake light
Traction control
ABS light

I also have the following codes. ANY help is appreciated I am hoping to give her this for christmas and need to get all these bugs worked out.

P1000
P1300
P1319
P1592

18-05

I guess im gonna go ahead and replace the shuttle valve on the abs. I have NOT done the O2 sensors but plan to now. Any other suggestions? I am growing tired of this one.

Thanks Everyone

 

Sorry, just to make sure I read what you wrote correctly - you let it sit for 8-9 months and are now wondering why you have a low battery?

Fully charge the battery before attempting to troubleshoot dash lights and trouble codes.

 

No I charged it up and went out the next day and it was just about dead. Battled it before i let it sit as well

 

Have you tested the battery to see if it needs replacing? Overall what I'm driving at - a lot of inexplicably-lit dash lights can often just be related to a bad battery.

 

Brand new, less than 1 year old

 

Most common battery drain issues are ABS and SLS. You likely have a small leak in the bags or lines and it is draining the battery to keep the rear end level. Pull the fuses on the ABS and SLS and see if it solves your battery drain. Half of the other codes are because of the battery drain. Disconnect the battery, touch the two battery cables and then reconnect. Unlock and lock the truck three times after doing so, best with the key fob but will work with the key. Report back remaining codes.

 

It doesn't matter that your battery is only 1 yo. Prove that it isn't bad before chasing any of your codes, and the overnight discharge. It will seem like a waste of time, but the only real waste of time is chasing problems while assuming that the cause is not the cause.

 

ok I will disconnect and try that, if that doesnt work I will pull the battery and take and have tested

Thanks Everyone

 

@Johnyakimo1855 Yea that battery is probably toast, then start looking for signs of mice, rat and squirrel damage in the interior and engine compartment

Do a full oil change that oil is done after that long sitting.
Check your air filter box for rodent nests

 

I pulled air filter already and all good there. Dropped the blower motor and only leaves. So cleaned all that out.

Have not see any signs of rodents infestation.

So hopefully its just a voltage issue. on another note im gonna be swore off Oreilly batteries if this one is bad. This will be the 3rd one this year. I am switching to Batteries Plus X2 batteries