20 Most Recent 2004 Cadillac DeVille DHS Questions & Answers

There is a little motor on the heater box under the dash that needs to be replaced. It's called a blend door actuator...

2004 Cadillac... | Answered on Mar 16, 2015

Check it for error codes. Test the fuel pump pressure.

Cadillac Cars &... | Answered 2 days ago

You disconnected the battery and upset the anti-theft system. The car isn't letting you take it anywhere!

Number 1 tip, when you remove the battery, maintain power using wires, jump leads or a charger so the power is never broken.

And you can't disable the system, you have to fix what's wrong. It is there to stop exactly what you are trying to do!

Tip & How-To about Cars & Trucks
Resetting a Vehicle Anti-Theft System
This is how you reset an anti theft system if you have the anti-theft light on, or your car is cranking, but you have no spark. The car starts and dies when you select a gear, or the car drives 100 yards and stops!

Doing a full reset of the anti-theft system.

Disconnect both battery leads for at least two hours.
Hold the negative and positive leads together for 5 minutes to fully discharge any power.
Put the key in the ignition, but not turned on. VERY IMPORTANT!
Connect the positive lead.
Connect the negative lead in one swift movement.
Wait 15 minutes for the system to fully reset.

Cadillac Cars &... | Answered 3 days ago

Starters don't have a computer, too many amps. Battery - Solenoid - Starter operated by the key and a relay, number 42.


Cadillac Cars &... | Answered on Jan 09, 2020

I guess instead of waiting for answers here just google it.. or like go for reliable-store.com. u can simply get answers to your questions there..

Cadillac Cars &... | Answered on Jan 03, 2020

Option codes are listed several places in the vehicle. Start with the glove box, then the trunk. Almost all DHS's are FE3.

Cadillac Cars &... | Answered on Jan 03, 2020

Maf sensor doesn't have a fuse , PCM - engine computer supplies voltage to maf sensor . Your best bet , take it to a qualified repair shop.

Cadillac Cars &... | Answered on Jan 01, 2020

Hi there's this website something like reliable-store and it is very amazing for manual for repairing servicing anything
someone on fixya recommended it to me and I thank him even today
They have full manuals and it's verrrrry cheap and mine
I got free in offers
3rd time I bought it, I also had an issue with the file so the girl replaced it in 30 mins
there is one website more but i don't remember its name it was 2 years back bitman something link this
Try these out brother

Cadillac Cars &... | Answered on Dec 18, 2019

You have multiple problems. Probably a bad IGN switch along with an anti-theft system issue. Get the codes read. Test the IGN switch. Fix it and it'll work.


Cadillac Cars &... | Answered on Dec 15, 2019

Not finding what you are looking for?
2004 Cadillac DeVille DHS Logo

2 questions posted

Ask a Question

Usually answered in minutes!

Popular Products

Top Cadillac Experts


Level 3 Expert

85219 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

Are you a Cadillac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

Cadillac Cars & Trucks

  • Cadillac Cars & Trucks

Most Popular Question

causes c blows cold drivers side hot

  • Cars & Trucks