Cadillac Seville / Cadillac Eldorado Forum Discussion, Dead STS - no voltage whatsoever in Past Cadillac Vehicle Discussion; Hi.. I have a 2002 STS. It just died one day. I thought the alternator went & the car ran ...
Hi.. I have a 2002 STS. It just died one day. I thought the alternator went & the car ran on the battery until it just ran down..
Well I have tried boosting it & it wont take a boost. Not even the interior lights come on when hooked to the boosting vehicle.
Any helpful advice would be appreciated. Thanks
OK.. Got a new battery, Got power but the car wont start. The starter wont even engage.
Automobile(s): 2002.5 F55 STS, 2014 Explorer XLT 4WD
MD Eastern Shore
Re: Dead STS
Your Group 79 battery - minimum 800 CCA - is under the rear seat with a special vent system. Check all the battery cables and the end of the negative cable where it attaches to the body metal stud. Check the engine to body ground strap as well as the positive cable at the underhood fuse box. Using a VOM, check for battery voltage at the underhood fuse box + cable and body metal. A fully charged battery, hooked up in the car, should show 12.4 volts or so in the DIC. A fully charged battery, disconnected and sitting idle for at least a half hour, will show 12.6 volts.
With no power whatsoever you'll need to do some really basic troubleshooting before you can use the car's built-in trouble code scanner system.
If you do regain power, study the sticky posts just above this thread, especially the one "How to pull codes" for your year/model. Bookmark the link in the sticky which takes you to the site for all code definitions.
Pull the codes!
Everybody tell you to do so, if you see the message on the dash then you can pull the codes.
What is the battery voltage (ignition ON/OFF)?
I know you cannot start the engine but that should not prevent you to have the ignition ON.
The key in your car has a chip and a coil inside the plastic handle.
In the area around the ignition cylinder there is another coil (exciter) that is eventually connected to the DIM.
This way the DIM is able to read the code in the key (proxy).
The DIM will then encrypt this message and send the "START ENABLE" message to the PCM (basically will let the PCM know the key is valid and it can enable the starter relay and open the injectors).
'99% your issue is in the DIM/VTD area.
Please post ALL YOUR codes (HISTORY or CURRENT, in this situation ALL are important) along with their definitions and we can help you further. Do specify what code is current and what is history though.
The more information you provide the easier it is to get a correct diagnose form one of us.
The "current" (before cleared) are listed above
The "history" are as follows DDM U1715. DDM U1016. DIM B1805. IPC B1004. IPC U1192. IPM B1652. IRC U1301. IRC U1064. IRC U1065. IRC U1160.
MSM B1327. MSM B1840. MSM U1016. RFA U1305. RIM B1327. RIM U1016. RSS U1016. RSS U1000. TTM B1983. TTM U1016. VTD B1327.
After being asked to clear
All ID? appeared & this followed. AMP ID: 8822. DDM ID: 5660. DIM ID: 2403. IPC ID: 2403. IPM ID: 3026. IRC ID: 4346. MSM ID: 2234. RFA ID: 5964.
RIM ID: 2585. RSS ID: 6599. TTM ID 9790. VTD ID: 7589. ALL CODES?
I do wish to thank all for the help & forgive me if this seems like a dumb question but... How do I get the key & the car to communicate with each other?
I was told by a mechanic to scrap the car cause the starter was gone & cost WAY too much to fix.
I DONT want to scrap it & this new info gives me a lot of hope..
Got the code list & most are "loss of communication" codes (most likely from the battery going dead) Now that there is a new battery installed, will it re-set itself or does it have to go to the dealer to be re-set?? If it can be done at home,,, How?
p.s. the key fob still works
it seems the key is now the