How to do it on some models fron another poster. Unfortunately yours is not included.


THIS ONLY WORKS FOR THE FOLLOWING MODELS!!!
96-02 Eldorado, ETC, ESC
96-97 Seville, STS, SLS
96-99 Deville, Concourse, DeElegance

~~~~~TO ADD COOLANT AND MPH DIC MESSAGE~~~~~
1) Press the OFF and PASS WARMER (referred to from here as WARMER) buttons simultaneously to enter diagnostic mode.

2) Let the system read any codes it has stored. You will ultimately be presented with "PCM?". You will answer with the fan speed control button. UP = yes and DOWN = no.

3) Press DOWN until you are presented with "IPC?". On mine, it's the very next prompt. When you get to the "IPC?" prompt, press UP to enter the IPC area (Instrument Panel Cluster).

4) Press DOWN until you are presented with "IPC OVERRIDE?". Press UP to enter the override area.

5) Scroll down (with the DOWN button) until you get to Option E. Wait a second or two, and the override value will appear to the right where the TRIP ODOMETER normally reads. Yours will probably read "43". That's what mine read when I first did this.

Below are the Option E values:

- Coolant Temp message (64)
- Battery Volts message (32)
- Engine RPM message (16)
- Avg Mph message (8)
- Mph message (4)
- Fuel Used message (2)
- Inst Mpg message (1)

The stock displays (for analog E/K displays) are Battery Volts, Avg Mph, Fuel Used, and Inst Mpg, for a total value of "43".

6) Use the WARMER button to increment the value of the override. In this case, we want to add Coolant Temp, so we're going to add "64" to "43", or "107". Press the WARMER button repeatedly to increment the value from "43" to "107".

If you make a mistake, you can decrement the value by pressing the COOLER button.

7) To permanently save the new value, hold the FRONT DEFROST and the A/C buttons simultaneously until the new override value flashes once.

8) You're done. Press OFF repeatedly to "back out" of the diagnostic system. You'll probably need to press OFF 5 or 6 times to get out of the deep "menu structure" you're in now.

Now, the coolant temp (in units specified) should be one "stop" along the revolving door we call the DIC. If you are in metric units, the coolant temp will read in *C. If you are in standard units, it'll read in *F.




~~~~~TO SHUT OFF DRLS~~~~~

1-4 FOLLOW ABOVE DIRECTIONS!!!

5) Scroll down (with the DOWN button) until you get to Option C. Wait a second or two, and the override value will appear to the right where the TRIP ODOMETER normally reads.

Below are the Option C values:

IPS03 Option C
- RSS installed (128)
-Premium Unleaded Fuel Only -
-Graphic supression (digital) (64)
-Daytime running lamps enabled (32)
-Cellular Telephone Installed (16)
-BTSI message suppression (4)
-Options not set (2)
-FUEL LEVEL LOW message suppresion (1)


6) Use the COOLER button to decrease the value of the override. In this case, we want to remove the DRLs so subtract your number by 32

If you make a mistake, you can decrement the value by pressing the WARMER button.

7) To permanently save the new value, hold the FRONT DEFROST and the A/C buttons simultaneously until the new override value flashes once.

8) You're done. Press OFF repeatedly to "back out" of the diagnostic system. You'll probably need to press OFF 5 or 6 times to get out of the deep "menu structure" you're in now.

NOTE!!!!
in order for your drls to ACTUALLY BE OFF your twilight must be pushed all the way to the left and your fog lights (when applicable) must be off as well!!!

HOPE THIS HELPS
ETC97