I have many errors that started to come up on my status menu on my 2001 lincoln ls. some of the dash lights dont work, interior lights, headlights, trunk light and it doesn't start. engine sensor error, interior light sensor error, trunk sensor error and exterior sensor errors are on. Is there a problem with the pcm??
2001 lincoln ls not starting
- Thread starter maleck
- Start date
yep. i vote dead/failing battery. (in the trunk btw. some people have trouble finding it. sometimes even dealers. 
) the LS is extremely voltage sensitive. charge the battery completely with a battery charger and try again.
do the tach and speedo make full sweeps after trying to start the car?
afaik, the PCM doesn't control lighting. that is dealt with with separate modules in the car, including, but not limited to, the REM (rear electronics module) and FEM (front electronics module).
a failure of multiple systems is unlikely, so there will be an underlying issue causing this.
other things to check, fuses in all 3 i believe it is, fuse boxes. check grounding points. corrosion on the battery terminals. any sort of wear or chafing of wires. etc.
note, if you do decide to replace the battery, it is strongly suggested you replace it with a sealed, tube vented motorcraft battery. as non sealed units can leak harmful gases into the cabin. and they might explode.
) the LS is extremely voltage sensitive. charge the battery completely with a battery charger and try again.do the tach and speedo make full sweeps after trying to start the car?
afaik, the PCM doesn't control lighting. that is dealt with with separate modules in the car, including, but not limited to, the REM (rear electronics module) and FEM (front electronics module).
a failure of multiple systems is unlikely, so there will be an underlying issue causing this.
other things to check, fuses in all 3 i believe it is, fuse boxes. check grounding points. corrosion on the battery terminals. any sort of wear or chafing of wires. etc.
note, if you do decide to replace the battery, it is strongly suggested you replace it with a sealed, tube vented motorcraft battery. as non sealed units can leak harmful gases into the cabin. and they might explode.
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Charged the battery to full and it seemed to hold a charge, it won't even try to crank it's like all the ignitions aren't powering up. Connections on the battery look fine and also the grounding points. Checked the main bigger fuses, but i will be checking the rest of them today to make sure. the tach and speedo don't move. only certain things seem to have power in the car like heated seats, mileage and status display when key is on, the radio. No lights in or outside the vehicle, no locks, no windows, no heating controls, keyless, or trunk pop.
tixer
Lincoln Evangelist
Take a good close look at the cables themselves.
I don't know where you are, but here in Minnesota it is common for the cables to corrode from the inside out where the connectors crimp on. Often they look perfect on the outside, but if you give them a wiggle where the cable meets the connector, you may find a problem.
Hardly a sure thing, but it is the next thing I'd check if it won't crank.
I don't know where you are, but here in Minnesota it is common for the cables to corrode from the inside out where the connectors crimp on. Often they look perfect on the outside, but if you give them a wiggle where the cable meets the connector, you may find a problem.
Hardly a sure thing, but it is the next thing I'd check if it won't crank.
ok. the sweeping tach is a power problem. when the gauges lose power, the gauges do a full sweep to like reset their on center or something. so if that happens, the car is losing power somewhere.
as for the rest of the electronic issues, the power seat and windows aren't controlled by anything that runs the car, so i am going assume they are not related..
did all of this occur at the same time? cuz that's really strange...
at this point paying a reputable Lincoln dealer for a diagnostic scan may go a long way in trying to figure what on earth is going on. because are having quite a few issues...
am i also going to direct you to lincoln vs cadillac . com. i am probably not technically supposed to do that (mods edit as necessary), but their LS section sees a ton more traffic than here. and there are many people that frequent the LS side that very good with diagnostics on the internet.
nothing wrong with LOD, but there are mostly Mark VIII enthusiasts here.
as for the rest of the electronic issues, the power seat and windows aren't controlled by anything that runs the car, so i am going assume they are not related..
did all of this occur at the same time? cuz that's really strange...
at this point paying a reputable Lincoln dealer for a diagnostic scan may go a long way in trying to figure what on earth is going on. because are having quite a few issues...
am i also going to direct you to lincoln vs cadillac . com. i am probably not technically supposed to do that (mods edit as necessary), but their LS section sees a ton more traffic than here. and there are many people that frequent the LS side that very good with diagnostics on the internet.
nothing wrong with LOD, but there are mostly Mark VIII enthusiasts here.
yes everything happened at the same time, we were testing for a current draw issue that was draining the battery and all of a sudden everything went dark and ever since it wouldn't start etc etc.. the gauges do the sweep once you turn the key to the "on" position. right now we are thinking it's the pcm and will be trying to swap that but i will try that other forum as well thanks!
Well brought it to the dealer and after 4 hours of diagnostics they said the reverse light was shorting out and causing the problem, also said something about the radio backfeeding into the light which may have caused the problem... note to everyone don't buy cheap brands or you pay for it in the long run!!
SCTBIRD1173
Mark my Bird!
Great news on getting it fixed! I'm surprised you found a dealer that knew what they were doing...