Is it one or more fuses, the computer, or something else in 2002 Chevy Impala?

Asked by Jul 06, 2013 at 07:23 PM about the 2002 Chevrolet Impala LS

Question type: Maintenance & Repair

All of a sudden, the Security light came on my 2002 Chevy Impala.  The manual says it's the pass lock system or possibly a fuse.  I'm thinking it may be more than one fuse, because I'm seeing the following problems at the exact time:  1) fog lights don't work, 2) headlights no longer come on automatically, 3) remote keyless entry no longer works - have to lock and unlock the car with the key - replaced the battery in the remote to no avail.  The car starts just fine.  I noticed in other posts people couldn't get the car to start, so this is not my problem with the Security light.  Does anyone have any ideas what could be causing these simultaneous problems?  Thanks!

4 Answers

71,655

Look for a fuse labeled BCM (Body Control Module). The BCM controls all the features you've mentioned. I'd start there first. Also, go into the "menu" on the radio. I hope you didn't put in an aftermarket radio. See if you can set up your personal settings such as lights and alarm system settings. If you can, that's where it is done. Through the radio. HTH. -Jim

2 of 2 people found this helpful.
45

JoAnn did you ever find out the problem on your 2002 Impala. I had the same thing happen today. I haven't yet checked the BCM fuse, but checked all other fuses, will check it tomorrow.

We're is bc diesel on 2002 impala

5

I had this issue on my 2002 chevy impala. It wouldn't start and the security light would come on. After a lot of inspection, it turned out to be the passlock module's connection to the ignition. The passlock module is a 2" x 0.5" x 0.5" black rectangular block attached to the side of the ignition. The wires from that module went into the ignition and those connection were corroded due to dis-similar metals on the pins, i.e. gold plated on one and tin on the other. I disconnected these wires and used electric cleaner on the leads and a straight wire brush. I then coated the connection in die-electric grease and never had the problem again.

Your Answer

Impala

Looking for a Used Impala in your area?

CarGurus has 34,842 nationwide Impala listings starting at $990.

ZIP:

Chevrolet Impala Experts

  • #1
    Js08016
    Reputation
    1,900
  • #2
    Tom Demyan
    Reputation
    1,840
  • #3
    Danny Wang
    Reputation
    1,710
View All

Related Models For Sale

Used Chevrolet Malibu
1,009 Great Deals out of 62,966 listings starting at $880
Used Chevrolet Camaro
439 Great Deals out of 31,299 listings starting at $3,550
Used Honda Accord
1,085 Great Deals out of 65,750 listings starting at $561
Used Nissan Maxima
302 Great Deals out of 22,129 listings starting at $1,200
Used Toyota Camry
935 Great Deals out of 90,022 listings starting at $300
Used Nissan Altima
1,070 Great Deals out of 78,359 listings starting at $1,500
Used Chevrolet Tahoe
764 Great Deals out of 41,930 listings starting at $1,980
Used Chevrolet Silverado 1500
2,346 Great Deals out of 173,301 listings starting at $699
Used Ford Mustang
544 Great Deals out of 36,562 listings starting at $1,500
Used Ford Taurus
208 Great Deals out of 14,739 listings starting at $1,850

Used Cars For Sale

2018 Chevrolet Impala LS For Sale
1,424 listings starting at $21,351
2017 Chevrolet Impala LS For Sale
8 Great Deals out of 1,571 listings starting at $15,990
2016 Chevrolet Impala LS For Sale
4 Great Deals out of 236 listings starting at $12,990
2015 Chevrolet Impala LS For Sale
4 Great Deals out of 246 listings starting at $10,999
2014 Chevrolet Impala LS For Sale
304 listings starting at $9,700

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.