Best Answer

Hold the OFF and WARM buttons on the E.C.C. When 7.0. is displayed on the F.D.C press the HI button once, You should now see E.9.5 displayed on the F.D.C. Then hold the ECON and WARM buttons on the E.C.C. and the F.D.C should now display E.5.0 indicating your in override diagnostic mode and depending on what you want to do use the HI or LO buttons the scroll up or down.

User Avatar

Wiki User

โˆ™ 2008-06-13 03:27:57
This answer is:
User Avatar

Add your answer:

Earn +5 pts
Q: Where do you find the programming override button on a 1991 Cadillac DeVille?
Write your answer...

Related Questions

Where is the 2001 Cadillac deville fuel pump reset button?

It is equipped with no such button.

Fuel reset button for 1997 Cadillac deville?

Cadillac does not use inertia/reset switches.

How do you change the TCC solenoid on a 1999 Cadillac deville concours?

Where is the tcc button on a 99 Cadillac concour

Where is the fuel pump reset button located on a 2003 cadillac deville?

It does not have one.

Is there a reset button for rear shocks on a 1988 Cadillac Deville?

In the trunk or passenger compartment

Where under the dash is the override button for 2001 kia?

Override button for what?

1995 cadillac deville how do you open trunk without key?

Press the trunk button on the dash board or the remote key fob

How do you reset a 1990 Cadillac DeVille fuel center from metric to standard?

there is a button near the spedometer display that switches us and metric

What could cause 1993 cadillac deville coach lights to suddenly stop lighting up?

door button stuck --bulbs? fuse.

Where is the emergency override button in 2001 Ford Expedition?

where is the emergency override button in 2001 ford expedition

How do you reset the locking door alarm on a 1999 Cadillac Deville so it beeps when locking doors?

hi there im 18 with a 98 deville but i know inside and out... hold the information button and the reset button at the same time and itll give you options on customizing your alarm to your liking

How do you open the gas tank door on a 1993 cadillac sedan deville?

Inside the glove box there is a button you push. I think you got to have the ignition on for it to operate.

How do you get keys out of a locked trunk of a 1991 cadillac deville?

take vin # off title to dealer, they can cut you a key or if door is unlocked, depress trunk button switch

Where if the override button on a 2002 Ford Explorer Sport?

Need more info. override button for what? the passive anti theft security system

How do you reset gas gauges to gallons ...instead of liters... on a 1987 cadillac deville?

On my 1987 Fleetwood, there is a button on the dashboard labeled E/M. Pushing this button changes the readings from English to metric and back. Hopefully there is a similar button on your vehicle.

How do you set the clock on a 1990 cad sedan deville?

To set the clock on your 1994 Cadillac DeVille, turn the ignition on with your key. On the bottom right corner of the clock you'll find the 'set' button. Press the button and immediately press and hold the 'seek' button. When the clock gets to the hour you want, release the 'seek' button. Next, press the 'set' button again and press the 'scan' button, and hold it while it scrolls through the minutes. When it displays the correct minutes, release the 'scan' button.

What are some causes of th eoverride button not working on a 2003 ford expedition?

Override button ? What is it supposed to override ? A little more detail please

1990 cadillac deville drivers door handle button will not open the door how to repair?

Door trim must be removed. A piece of disconnected linkage is most likely the culprit

How do you fix a fuel door that wont open on a 96 cadillac deville?

I have a 95. I find a little wd40 once a month helps out alot. check valet button in glove box.valet button deactivates fuel door realease.

Where is the valet override button to override the starter lockout on a 1996 Ford Contour and what does the button look like?

It is usaully in the glove box on most cars check in there, it should be a little round button

Reset oil life indicator for a 1997 Cadillac DeVille?

press info botton until you come upon "oil life" then press and hold the reset button for about 5 seconds

What is override button for on 1998 polaris 6x6 big boss?

The override button is used when driving in reverse, it's used when you need to go faster then 5mph in reverse.

Where is the alarm override button located on a 1993 ranger?

The 1993 Ford Ranger does not have an alarm override but. You can override the alarm system by removing the alarm system fuse.

Where is the valet override button on an Acura Vigor?

You will need to unplug the connector on the hood switch. That is how you can override on an Acura Vigor.

How do you reset the computer system in 1994 Cadillac DeVille after oil change?

Hit INFORMATION button until oil percentage is displayed. Press and hold reset until display reads 100%