Question about 2003 Cadillac CTS

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I have 2003 cad cts mt new battery,new starter

I have 2003 cad cts mt new battery,new starter when trying to turn the key the starter is not starting to crank only clicks,checked all the wires everything looks good

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  • matthew1187 Dec 11, 2009

    when trying to crank all of the dash lights going blank like there is a big power Los



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Does the vehicle have an anti theft device on it if so it may need to be reset. usually all you have to do is unlpug the negative batt cable. for about 5 mins.and reconnect it. if this does not solve the problem look i the owners manual to see how to override the system.

Posted on Dec 11, 2009

  • Katdaddy21 Dec 12, 2009

    look under the hood there is a fuse box this box houses all of the major fuses look for the fuse that controls the starting system usually a 50-100 amp fuse. this can be a regular two pronged fuse or it may be a fuse that looks like a relay. usually has a clear top on it and it usually bolts into the box locate this fuse and make sure that it is not blown.



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1 Answer

Why won't it start?

Is it the ignition key chip ? most likely will have to have it reprogramed, did you try the spare key ?

Oct 17, 2015 | 2003 Cadillac CTS

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2003 cts wont start. i jumped the starter and won't turn over. Battery says 11.9 volts could it be the battery or starter?

Battery voltage is definitely and issue. Charge your battery and have it tested before condemning the starter.

Jul 08, 2012 | 2004 Cadillac CTS

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2005 Cad CTS 3.6. Car won't start...all electrical appears to be functioning...battery is fine...all battery connections seem fine...when key is turned there is a single click and then nothing...

when key is turned there is a single click and then nothing happens. Where do you hear this click coming from ? Before you replace parts you should test the electrical circuits , if you don't know how i suggest you take it to a qualified repair shop .
Viewing wiring diagrams to see what all is involved in the starting of the vehicle , reading how it's suppose to work in factory service repair manual .
Moving the ignition switch to the START position sends a 12-volt signal to the engine control module (ECM) to command starting. Battery voltage also travels through the switch side of the Run/Crank relay then through the clutch switch, if equipped with manual transmission, and on through the coil side of the Starter relay and then to the ECM. The ECM receives class 2 information from the vehicle theft deterrent (VTD) and transmission control module (TCM) to verify that all parameters are met for starting. When all parameters are met the ECM grounds the control circuit of the Starter relay closing the switch providing battery voltage to the starter solenoid through a 30 A Maxi-Fuse.

Are the battery cables good ? Voltage drop testing

Starter Voltage Drop

Test the control side of the circuit at the relay . Free wiring diagrams here Enter vehicle info. year , make , model an engine size . Under system click on engine .Then under subsystem click on starting . Click the search button then the blue link . Pretty complex looking isn't it . Using a factory scan tool at the dealer makes diagnosing a lot simpler . Can view data to the PCM , start signal from the ignition switch , Starter relay control , see input from transmission park neutral safety switch .

Feb 28, 2018 | 2005 Cadillac CTS

2 Answers

I have an cadillac Cts 2003 with starting problems

the plugs are the problem, they become unable to ignite all the fuel when in idle, so that they get wet and won't give any spark until dry. try to replace them. if there's no difference the problem is at the admission system(fuel pump maybe)

Mar 13, 2010 | 2003 Cadillac CTS

1 Answer

2005 cad cts won't start makes a sparking sound when you press start button

check for loose connection at starter may also have a bad battery

Aug 11, 2009 | 2005 Cadillac CTS

1 Answer

Sometimes won't turn over when i try it. 2003 cadillac cts

hi, when it dont turn over do you hear a clicking noise or is the engine turning over and just not starting.
If its the first and when you turn the key the starter motor dont turn the engine over allowing it to start you will usually hear a clicking noise and this is the selanoid inside the starter motor failing to make a connection.
If this is the case then all you need to do is get the starter motor replaced if you have any further comments or need further assistance then let me know ok

Aug 05, 2009 | 2003 Cadillac CTS

3 Answers

Cadillac 2004 cts, wont start

i had a 2003 ctc that did the same thing, it wouldn't start or would make a clicking sound and about 1 mth after the problem started aND mechanics could not find a problem my car caught on fire and burned completely from something under the right side of the hood. i had just parked the car and got out, it happened really fast. the fire chief said the cause was unknown????

now i have a 2004 cts and i'm having the same problem!!!!!!!!!!!!!!! has anyone else had this happen???? please be cautious if your cts is doing this, during the fire my doors locked and had to be pried into by fire chief.

Nov 24, 2008 | 2004 Cadillac CTS

4 Answers

The car will not start. The battery is in good condition. I have a keyless start and had the starter replaced 3 months ago when it would not start the first time. Now it would not start again with the...

My 2004 CTS started doing the same thing last week (October 24) Took it to the dealer the PCM was shot. It was covered under the factory warranty (130 000km if I remember right) works great now.

Jul 16, 2008 | 2007 Cadillac CTS 3.6L

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