I have a 2003 Chevy Silverado and the battery not charging light blinks even though I have replaced the alternator and have had all tested and works fine,I also realized my radio no longer cuts off automatically when I shut off and open the door. Is the PCU bad

60

Asked by Dec 03, 2014 at 06:54 AM about the 2003 Chevrolet Silverado 1500 Ext Cab Long Bed 4WD

Question type: Maintenance & Repair

Changed Alternator and had all tested, also radio now dose not shut off automatically

7 Answers

34,985

Try this. It should reset the ECU. Disconnect the battery for about a half hour. It's worth a shot.

1 of 1 people found this helpful.
19,880

Make sure ALL of your connections are clean and tight at the battery and alternator. That none of the wires are nicked, cut, corroded, melted or broken. As far as the radio not turning off when you open the door, does the dome light come on when you open the drivers door? Will the radio turn off when the passenger door is opened?

2 of 2 people found this helpful.
60

Yes the dome light and everything else is good and no the radio has to be shut down manualy now. Also now I see at idle that the

5 of 5 people found this helpful.
60

wow I see at idle that the motor bogs down and the volts go to 11-12 just for 1-2secs every 6-9 mins.

1 of 1 people found this helpful.
19,880

Sounds like the new alternator is no good. If you got it at Autozone or someplace similar they are usually not very good. However even a good brand can be bad out of the box from time to time. Go have the alternator and battery tested at an Autozone for free.

60

My avalanche 2003 has the bateri no charging I change the baterie and the alternator,clean all grounds but still the light is blinking please help me with it Thank you

6 of 6 people found this helpful.
40

I am having the identical problem with my 2003 Chevy Silverado- found any solution yet?

4 of 4 people found this helpful.

Your Answer

Silverado 1500

Looking for a Used Silverado 1500 in your area?

CarGurus has 183,298 nationwide Silverado 1500 listings starting at $1,693.

ZIP:

Chevrolet Silverado 1500 Experts

  • #1
    John Carson
    Reputation
    2,450
  • #2
    Rowefast
    Reputation
    1,960
  • #3
    Andrew Olsen
    Reputation
    1,670
View All

Related Models For Sale

Used GMC Sierra 1500
754 Great Deals out of 68,023 listings starting at $1,699
Used Ford F-150
2,230 Great Deals out of 181,369 listings starting at $1,500
Used Dodge Ram 1500
412 Great Deals out of 10,701 listings starting at $1,500
Used Chevrolet Silverado 2500HD
347 Great Deals out of 29,278 listings starting at $2,650
Used Toyota Tundra
436 Great Deals out of 33,697 listings starting at $1,999
Used Toyota Tacoma
549 Great Deals out of 42,057 listings starting at $2,999
Used Chevrolet Tahoe
624 Great Deals out of 36,241 listings starting at $1,800
Used Chevrolet Colorado
259 Great Deals out of 29,466 listings starting at $2,395
Used Chevrolet Camaro
422 Great Deals out of 31,785 listings starting at $2,395
Used Ford F-250 Super Duty
329 Great Deals out of 43,470 listings starting at $1,250
Used Chevrolet Silverado 2500
6 Great Deals out of 243 listings starting at $3,995
Used Chevrolet Silverado 1500HD
9 Great Deals out of 266 listings starting at $4,300
Used Ford Mustang
759 Great Deals out of 42,755 listings starting at $1,300

Used Cars For Sale

2017 Chevrolet Silverado 1500 For Sale
321 Great Deals out of 110,536 listings starting at $20,107
2016 Chevrolet Silverado 1500 For Sale
163 Great Deals out of 6,005 listings starting at $17,995
2015 Chevrolet Silverado 1500 For Sale
271 Great Deals out of 9,042 listings starting at $12,950
2014 Chevrolet Silverado 1500 For Sale
357 Great Deals out of 11,851 listings starting at $9,999
2013 Chevrolet Silverado 1500 For Sale
156 Great Deals out of 5,023 listings starting at $7,974

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.