I had a radio installed & now the check engine light is on

Yes but why !

You loose all the I/M Monitors that ran & all
data & possibly some shift strategy & relearns

Forget it-- unless you know you repaired something
& tested the new parts

If you clear codes or check lights, you can't
find the problems to diagnose & repair.

If your going to remove a battery cable, you need
to know if you loose radio codes or if the car will
even start,every vehicle is different.

You don't clear a check light after making a repair, unless
they are ones that have to be cleared after you road test
to confirm a repair.

If you have a check light or MIL Lamp on, you have OBD 2 System
Faults to work on.

You need to diagnose any codes you get
& smoke test the evap system, to find a
problem

Seldom does throwing on parts with a name similar
to a code work

Codes have nothing to do with installing parts

Clearing codes, clears all data needed to diagnose
the failed system & the evap system only runs every few
days,so you done as far as codes helping

Check Engine Light can be reset by disconnecting the battery terminal and and putting it back again. Make sure you have the code for the radio before you disconnect the battery terminal as the radio can get locked. You can get the radio code from any dealer.
Another way to rest the check engine light is by using an error code checking meter. You will have to purchase one.
It is always better to first get it checked from a mechanic for the reason of the light to come on before you reset the light as it might be an indication of a serious engine issue.

had the same problem. no radio, navigation interior lights etc. replaced 20 amp fuse labeled "back up" in the engine compartment fuse box and all checks good.

two ways,,disconnect the battery for 15 minuets,,then u will have to reprogram the radio,,or,,go back to advance & have them clear it with the scanner,,it can clear codes,,hope it helped

CHEVY IMPALA &
MONTE CARLO
On a Chevy Impala or Monte Carlo with indirect TPMS, a totally different reset procedure is required. You can use the light switch or radio to reset the system. With the light switch procedure, turn the ignition on (engine off), the turn the light switch from OFF to parking lamps three times within five seconds. With the radio technique, turn the ignition on (engine off). With the radio off, hold the DISP button until “SETTINGS” is displayed. Use the SEEK button to scroll down the menu until you see “TIRE MON.” Press the PREV or NEXT buttons until “RESET” is displayed. Then press the DISP button again. You should hear a chime and see “DONE” to indicate the TPMS system has been successfully reset. Use the SEEK button to scroll through the menu until “DONE” is shown, then press DISP once more to exit from the learn mode.

Though all of these TPMS applications use a similar technology and strategy to detect a low tire, there is no common reset procedure. GM is probably the worst, with 10 different reset procedures depending on the application. Toyota is probably the best, with only one simple reset procedure for all of their indirect TPMS systems (though a slightly different procedure is used on the Lexus models).

TPMS reset procedures may also be found in the vehicle owner’s manual (if it hasn’t been lost). Open the glove box and check the index in the owner’s manual for any TPMS information.

CHEVY IMPALA &
MONTE CARLO
On a Chevy Impala or Monte Carlo with indirect TPMS, a totally different reset procedure is required. You can use the light switch or radio to reset the system. With the light switch procedure, turn the ignition on (engine off), the turn the light switch from OFF to parking lamps three times within five seconds. With the radio technique, turn the ignition on (engine off). With the radio off, hold the DISP button until “SETTINGS” is displayed. Use the SEEK button to scroll down the menu until you see “TIRE MON.” Press the PREV or NEXT buttons until “RESET” is displayed. Then press the DISP button again. You should hear a chime and see “DONE” to indicate the TPMS system has been successfully reset. Use the SEEK button to scroll through the menu until “DONE” is shown, then press DISP once more to exit from the learn mode.

Good luck and this should work for you. They changed the reset procedure on the 2006 Impala.

Try removing the negative terminal on the battery for 5mins and this should reset it.

You can't reset it. That light is on because there's a problem with the emissions system,like a bad o2 sensor & such. Go to your local autozone & have them pull the trouble code out. Message back for the fix & the light will be out.

Sometimes disconnecting the battery for a few minutes will reset the check engine light. Make sure you have the correct radio code before doing this or your radio will not work after disconnecting the battery.