1988 Eldorado Dash An Heat controlls

[koolme88]

I bought a 88 Eldorado today The dash works when it wants to the odometer says error. The heat controlls dont display anything and the thing below them dont work eather. The dome lights work when they want to like when i wass messing with it tonight when the dash stoped workin they wouldnt come on i got sick of lookin at it so i went in the houst i came back out 15 min laiter to get my smokes an the dome lights came on do i turned the key on an the dash worked but it still says error on the odometer an the heas controlls still arnt working can anyone help me out with this.

[DFBonnett]

Could be a low voltage problem. Start by cleaning the battery connections and all the grounds you can access. Verify that the battery is up to full charge. Feel along the battery cables for lumps and swelling which would indicate internal corrosion.

[koolme88]

ok i will try that today i have to put a water pump in it to so i will check that out when i am under the hood

[koolme88]

I cleaned the grounds an still no luck i changed the heat controlls an i got them to work when everything elces is working an i checked the codes an i got a BCM EEPROM Error i dont know what the f* that means but if i cant get it fixed it will go for scrap wich is a shame cause there is no rust on the car