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so i bought this 97 sts and its a really nice car, first it had a overheating problem and charging, i figured that out replaced the battery and alternator,

and waterpump and now car was running good i did a tune up changed plugs and it was great, drove it for an hour then out of no where cause it wanted to on the highway normal speed it just lost power. it died.

after further inspection under the hood the small fuse box i pulled the fuel pump relay one (small grey box fuse USA 965041A) it smelt a little burnt.

inside the car i could smell some burning also. just a funny smell not really burning.

i got it towed home cause i couldnt hear the the pump purging or coming on when i turned the key.

i pulled the codes on the dash

165 695 KM on the car if it matters.

ACM B1348 HISTORY

SDM B1161 HISTORY

TCS C1226 HISTORY

TCS C1233 CURRENT

TCS C1251 HUSTORY

TCS C1253 HISTORY

TCS C1255 CURRENT

RSS C1780 HISTORY

RSS C1785 HISTORY

PZM B1552 HISTORY

PZM B1970 HISTORY

OZN B2471 HISTORY

NO CCP CODES

MMM U1300 HISTORY

165 695 KM

if someone knows something i dont please help me. anything would be great. :mellow:

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:welcomesmiley:

Generally PCM codes have to do with the engine computer.

TCS are traction control codes.

ACM is Air conditioning.

RSS is ride control

PZM and OZM look llike light / lamp issues.

Your codes will be similar to the 1998 codes shown here: http://www.caddyinfo.com/1998eldoradodtccodes.htm

B1348 Very Low A/C Refrigerant Pressure

B1161: Loss of Serial Data?

DTC C1226 RF Excessive Wheel Speed Variation

DTC C1233 RF Wheel Speed Circuit Open or Shorted

TCS C1251 HiSTORY

DTC C1253 ICCS2 Data Link Right Malfunction

DTC C1255 EBTCM Internal Malfunction

C1780 Loss of Steering Position Signal

DTC C1785 ICCS2 DL Right Output Short CKT to GND

DTC B1552 Loss of BCM Keep Alive Memory

DTC B1970 Exterior Lamp Power

B2471 Interior Lamp fault

U1300 Serial bus shorted to ground

Sometimes the U1300 is a nuisance code, but if you do have a short on the serial bus that the PCM uses to talk to the other system that could cause problems.

Bruce

2016 Cadillac ATS-V gray/black

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Was the battery new? Are you sure that the battery connections are good?

As Bruce noted that short to ground is the first one that I would look at. Are there any aftermarket accessories? Radios, remote starters, amps, etc

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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No the car is stock not even an alarm that I know of it has power options though.

I'm just wondering if there's another relay somewhere in the car like my 90 gt mustang has the one under the seat also and an auto gas shut off/ reset in the rear of the car.

The battery was well is new and yes the ground is good

I'm thinking somehow the system got over loaded by something like fans turning on or something

(car was at operating temp when it died)

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Fans cant overload the electrical system

Check the positive battery cable, it is two wires sandwiched with a lead spacer between them. Make sure that entire joint is clean, take it apart by taking the red insulator off of it. clean it well

Check that when the cable to battery bolts are tight, make sure that the cables are tight, sometimes the bolt can bottom out and the cables are not tight.

These cars need GOOD current and steady non intermittant power,

You need to seriously eliminate that possiblity at the outset of this diagnosis a bad or intemittant connection can cause problems like DTC codes all over the board.

What kind of work has been done on this car?

Check your under hood relay center, pull each relay and fuse and look for GREEN/WHITE corrosion, that can cause fits, and make sure that the 12V battery cable is tight at the relay center

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Yes I had found corrosion around the fuel pump relay when I pulled it out

I found this link and read up it seems like a positive lead to my problems

http://www.cadillacforums.com/forums/cadil...pump-relay.html

are there more relays in the fuel system curcit?

Did you make sure that the socket and the relay were clean?, that could have been your problem, buy some electrical contact cleaner. If you have corrosion in one socket you must pull all the others and check

Check the Fuel Pump fuse also

You are looking for this type of corrosion, notice how it eats the contacts

Closeupofgreencorrosion.jpg

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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I don't know for sure whether there are other relays/fuses for the fuel system in your car, but I know there are in mine. There should be a diagram that lists all the fuses/relays, their location, and what they do in your owner's manual. If you don't have one, you can download one here. It's GM's website. You have to sign up, but all that requires is putting in your e-mail address and your car's VIN number. It's the only place I have found that lets you download them for free.

http://www.gm.com/gmownercenter/gm/?campaignId=&vin=

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Yes it seemed clean but I'll for sure get some cleaner and pull all the fuses and clean the

up.

Thank you I'm on my iPhone right now at work but as soon as I get up I'll forsure download the diagram

You guys are really helpfull

Friday my buddy is going to come over and work on it with me and were replacing a wack of fuses to be safe

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I'm just wondering if there's another relay somewhere in the car like my 90 gt mustang has the one under the seat also and an auto gas shut off/ reset in the rear of the car.

I think you are talking about an inertia switch. GM doesn't use them. Your pump may be on the way out and overloading the circuit.

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  • 2 weeks later...

so it turns out it was the relay and some fuses but now iv got another problem

there is a draw somewhere and it kills the battery and im really not sure where to

even begin. this is a beautiful car but the problems just never end, its a money pit.

any suggestions or should i just burn it and rid of my worries.

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I'm sure you have probably already checked the basics.....but just in case.

Make sure ALL of your lights turn off after you get out of the car, including any interior lights. Also, be sure the stereo shuts off. Most Caddys have RAP (retained accessory power) where the power windows and stereo will stay on even after the car is off, until you open a door, so be sure that the RAP is shutting off as it should. Also, be sure there isn't anything plugged into the cigarette lighter adapter. Even something as simple as a cell phone charger or a power cord for a CD player can still draw power when the car is off.

Also, did you make sure you replaced the relays/fuses with the proper types?

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so it turns out it was the relay and some fuses but now iv got another problem

there is a draw somewhere and it kills the battery and im really not sure where to

even begin. this is a beautiful car but the problems just never end, its a money pit.

any suggestions or should i just burn it and rid of my worries.

Put a 12v test light in line between the negative battery cable and the battery "post". If you have a draw, the light will illuminate. Start pulling fuses til it goes out. That is the circuit with the draw.

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well wont have to warry about this anymore... the car caught on fire.... its a write off.

I'm so sorry to hear about this. Was anyone hurt?

If you don't mind my asking, what caused the fire?

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nope no one was hurt but the auto door locks sure scared the driver

as i got out opened the hood, which fueled it then the smoke came out

and she panicked and couldn't open the door. a quick second of me

telling her to calm down and do it manually and stop trying to pull the handle

she got out and ya the nylon rail.. really couldn't tell ya the car is gone

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I'm sorry for your loss of the car. I was re-reading through this topic and can't help but to think back to my old Chevy Corsica. It had a problem with stalling but I couldn't figure out why. One day while I was driving the dashboard caught on fire. As it turns out, one of the wires to the fuel pump under the car had become bare, and was shorting out under the car. I guess this day it shorted out and caught the fuse box on fire under the dash. I managed to get the fire out (my father raised me to keep an extinguisher in my car) and had it sent to a garage. Upon further investigation, the fire started at the fuse for the fuel pump.

I realize a Corsica isn't a Cadillac, but I'm wondering if you could have had a similar problem.

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nope no one was hurt but the auto door locks sure scared the driver

as i got out opened the hood, which fueled it then the smoke came out

and she panicked and couldn't open the door. a quick second of me

telling her to calm down and do it manually and stop trying to pull the handle

she got out and ya the nylon rail.. really couldn't tell ya the car is gone

The battery drain might had something to do with the "thermal event". Have you found a replacement for your Cadillac?

The saddest thing in life is wasted talent

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i want the never ctsv but thats going to be a few years down the road.. i got an 05 yamaha r6 raven edition 6000km on it

so thats goin be my toy... no problems with this thing unlike the dam caddy, that thing was nothing but money and head aches

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Keep in mind that you were driving a 97 that is 13 years old. I am not sure how many miles on it but at this age, it it going to need replacements and maintenance, try not to let this vehicle sour you, with your nothing but money and headaches statement. If no work or substandard work was done on this car, you WILL have problems as with any mechanical device.

If the fuel rail caused the fire, whoever owned this car, should have received a recall notice from GM, as many of us did, if the rail was not replaced, someone dropped the ball. Where is this car located, and where was the prior owner located?

Make: CADILLAC Model: SEVILLEModel Year: 1997Manufacturer: GENERAL MOTORS CORP.Mfr's Report Date: MAR 03, 2004NHTSA CAMPAIGN ID Number: 04V110000 EA04003NHTSA Action Number: EA04003 Component: FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGSPotential Number of Units Affected: 483477

Vehicle Make / Model: Model Year(s): CADILLAC / DEVILLE 1995-1997

CADILLAC / ELDORADO 1995-1997

CADILLAC / SEVILLE 1995-1997

OLDSMOBILE / AURORA 1995-1997

NHTSA CAMPAIGN ID Number: 04V110000 Summary: SOME PASSENGER VEHICLES EQUIPPED WITH 4.0L V8 ENGINES HAVE A CONDITION IN WHICH THE NYLON TUBING USED IN THE FUEL RAIL CONSTRUCTION MAY DEGRADE AND CRACK. ADDITIONALLY, THE 1995 MODEL YEAR USES A UNIQUE UNDERHOOD FUEL RETURN LINE THAT MAY CRACK. CRACKING OF THE FUEL RAIL OR RETURN LINE TUBING CAN RESULT IN A FUEL LEAK INTO THE ENGINE COMPARTMENT. Consequence: FUEL LEAKAGE, IN THE PRESENCE OF AN IGNITION SOURCE, COULD RESULT IN A FIRE. Remedy: DEALERS WILL INSPECT AND, IF NECESSARY, REPLACE THE ENGINE FUEL RAIL WITH A NEW STAINLESS STEEL FUEL RAIL. DEALERS WILL ALSO INSTALL A REVISED CHASSIS FUEL RETURN LINE. THE RECALL BEGAN ON JUNE 2, 2004, FOR 1996-1997 OLDSMOBILE AURORA VEHICLES. OWNERS OF 1995 CADILLACS AND 1996-1997 OLDSMOBILE AURORA WERE SENT LETTERS ON AUGUST 6, 2004. ADDITIONAL LETTERS TO OWNERS WILL BE FORTHCOMING. OWNERS SHOULD CONTACT OLDSMOBILE AT 1-800-630-6537. Notes: GM RECALL NO. 04014. CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION¿S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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For future reference, whenever you get a car, be it new or used, you should look up any recalls that may have been made on it and be sure to get them taken care of if they haven't been already.

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