Question about Cadillac CTS

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I have a 2004 Cadillac cts,the abs,tc and brake light are on and the shift lock wont release. tried scanning and no codes

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  • formula270 Aug 21, 2010

    once again, i have a 2004 Cadillac cts,the abs ,brake, tc light are on and at the same time shift lock wont release

  • formula270 Aug 23, 2010

    i have a 2004 Cadillac cts,the abs,tc and brake light are on and the shift lock wont release. tried scanning and no codes

  • formula270 Aug 23, 2010

    and how would check this?

  • formula270 Aug 25, 2010

    i used a autoxray 6000 would this do?

  • Anonymous Mar 31, 2014

    my tc and abs light came on at the same time. I had my car scanned and these codes appeared(P0318,P1793,C0040)

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  • Master
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The bcm is going bad

Posted on Sep 03, 2010

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  • Master
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Under the hood you have 50 amp fuse on the right side of engine. make sure all the fuses are ok. Then check all the 15 amp fuses. If these check out good then the next step is to check to make sure you have power at the ABS module . If you do then the problem is the ABS module failed.

You do have codes stored if any of those lights are on. You just need a better scanner that can access all the systems. All cheap testers can only read engine performance codes.

Go to modulemaster.com You can remove the unit and send it out to be rebuilt for alot less than a dealer replacement. You can still drive the car while its out getting rebuilt.

But you really need to get the code before you proceed. Hate to do all this and it ends up being a wheel sensor which a code would specify.

Posted on Aug 23, 2010

  • Susan Price Aug 26, 2010

    you need to take the car to a shop. The shop will need to access the computer using a data scanner. Its the only way to get the codes

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  • Cadillac Master
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The ABS module may be bad if it has false ABS, TC, and Brake Light on and the Shift lock won't release.

Posted on Aug 23, 2010

  • Duane Wong
    Duane Wong Aug 23, 2010

    Most techs I know would change the ABS module to make it work. But, if it's not, then there's something in the wiring.

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You have a problem in your ABS control system or a caliper has failed. You will need to inspect your brake calipers and have the ABS control module tested. I recommend the Haynes repair manual for directions on how to properly do these things. It is available at most major auto parts stores.

Posted on Aug 21, 2010

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Did the battery get disconnected?If it did,it needs a "reset".My neighbors car needed that.There are instructions for it in the owner's manual,maybe under battery removal section.Or flip to the back index and look for an appropriate term for it.Something about systems locked up,or shifter locked up.If you can't find it,or don't have the owner's manual,call a Cadillac dealer.They will tell you for free.Good luck!Greg

Posted on Aug 21, 2010

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1 Answer

My 2004 Pontiac grand am by ram air has trac off light on and the abs light on what does that mean?


It means that there is a problem with the ABS (anti lock braking system) and traction control systems normally because of a component failure. When you get these warnings the ABS and traction control systems will be de-activated by the computer.
So you will have normal braking function but no anti lock function on your brakes to prevent wheel lock up under hard braking and no traction control system to assist you when a tire or tires begin to lose grip on the road surface.

You need to have the ABS system scanned for fault codes which will help identify which component has caused the problem with the system. Frequently the cause is a failed wheel speed sensor or sensors which are needed for both the ABS and TC systems to operate and it is possibly that issue in your case also. Or there could be an issue with the wiring but there are numerous possible causes. You won't know until the diagnostics are carried out properly. For this issue I would take the car to a GM dealer service center. They have the correct scan tools to diagnose ABS and TC problems and will have seen many others with the same fault appearing.

In the mean time your car is perfectly safe to drive but bear in mind that you will not have the ABS and TC systems to help you if you drive too hard for road and traffic conditions and get yourself into trouble.

Jan 31, 2016 | Pontiac Cars & Trucks

1 Answer

My 2003 cadillac cts was stuck in park and abs brake and traction lights are on replaced shifter wire car is not in park anymore but abs brake and traction light is still on. Also, resurfaced rotars and...


Low brake fluid level could cause that. Bad ABS wheel sensor. Brake switch. Go to Autozone and ask them to put the scanner on and see what codes you're getting.

Jan 30, 2015 | 2003 Cadillac CTS

1 Answer

Why my2004 Cadallic cts brake lights wont work or shift out of park?TC lig


A failed brake light switch or brake light circuit fuse will cause BOTH problems. Start by verifying that the fuse is OK, then proceed with replacing the brake light switch if the fuse was not at issue.

May 24, 2014 | 2004 Cadillac CTS

1 Answer

2006 CTS Engine light on.


Whenever this warning light or any other stays on in the dash it is indicating that the systems control module (or the system sensor in the case of lights like low oil pressure, door open indicators etc.) has detected a fault, it then disables the system (this applies to ABS,TCS, TCM, SRS, TPMS, MIL, CEL and BCM faults and others) as long as the light is on. You must now have the dealer hook up a special electronic diagnostic tool and "scan" the system for the fault code that is stored for the problem(s)

Legend of Abbreviations. ABS Anti-lock brake system. TCS Traction control system, TCM Transmission control module, SRS Supplemental restraint system, BCM Body control module. TPMS Tire Pressure Monitor System, MIL Malfunction Indicator Lamp, CEL Check Engine Light.

Nov 06, 2012 | 2006 Cadillac CTS

1 Answer

TC, ABS and Service brake assist lights are on after changing speed sensor.


make sure your sensor is aligned properly check your connections have you driven the car since you changed sometimes you need to drive the vehicle to reprogram the speed sensor into the abs circuit these are fused circuits check your fuses

Jul 07, 2012 | Cadillac CTS Cars & Trucks

1 Answer

Tc, abs and service brake assist lights are on


Could be a wiring problem or the object that triggers the sensor.

Jul 07, 2012 | 2004 Cadillac CTS

1 Answer

What does it mean when the tc and theft systm light on dashboard is on and car will start but not go into gear on a cadillac cts


the tc is the traction control light the switch to turn it on and off is in the glove compartment labeled tc try pressing it to see if the tc light goes off

Dec 27, 2011 | 2004 Cadillac CTS

1 Answer

ABS LIGHT AND TRACTION CONTROL LIGHT STAYS ON


ABS = Anti-lock Brake System.
TC = Traction Control System (Engine Control Module).
If the ABS lights on the dashboard permanently the ABS system is faulty. You must access the ABS & TC Electronic Control Units (ECU) memory for pull out all DTC (Diagnostic Trouble Codes), using diagnostic equipment connected to the data link connector of the car. Then you will be full informed about bad pieces (e.g.: front right wheel abs sensor interrupted, ...). After bad pieces replacement you will be able to erase all faults memored by ABS ECU, in other words reset the ABS system and turn off the warning lamp on dashboard.

I suspect bad brake pedal switch, but you should scan the ABS & TC ECU's.

Jul 02, 2011 | 2001 Jaguar XJ8

1 Answer

Service Stability Sys and Service Brake Asst message


This usually happens when one or more of the wheel speed sensors is not reporting correctly and/or the brake control module has a fault.
First, check your tire pressure, as this can cause this to happen.
Next have the ABS codes scanned. This will tell you more clearly what is happening.

Oct 23, 2009 | 2004 Cadillac CTS

1 Answer

ABS TURN LIGHTS COME ON


need to get abs codes read. it will tell you what wheel to look at.
1.bad wheel bearing, sensor is part of bearing.
2.broken wires to sensor.
3.traction control part of abs

May 06, 2009 | 2004 Cadillac CTS

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