Emission Problem: No power to the Test plug. Operating manual with truck does not show what fuse may feed the test plug. No indication in the manual why there would be no power to this plug. Cleared o

45

Asked by Dec 22, 2013 at 12:12 PM about the Chevrolet Silverado 1500

Question type: Maintenance & Repair

6 Answers

68,725

What year is your Silverado? -Jim

1 of 1 people found this helpful.
45

2006

1 of 1 people found this helpful.
68,725

If your scan tool won't read the computer and gives you an "error" message it's because of newer software that was installed at the factory. It's called "CAN". I've read that this software became mandatory beginning 2008 but GM has been using it as early as 2006 on some vehicles. It's too fast for some scan tools to read. If this is not your problem check the underhood fuse box. Look for fuses labeled PCM 1, PCM B, and 4 WS. HTH. -Jim

3 of 3 people found this helpful.
45

Js08016 led me in the correct direction, but all those fuses that he mentions were good. I found the fuse for the cigarette lighter was blown open. I replace it and measured power to the test connector then my truck passed the emissions test. Who would have thought? Problem solved.

3 of 3 people found this helpful.
68,725

Awesome, glad to help and you're on the road again! Thanks for letting us know. -Jim

10

I have the same problem but all my fuses are good. Is there any other problem it could be.?

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

Silverado 1500

Looking for a Used Silverado 1500 in your area?

CarGurus has 182,800 nationwide Silverado 1500 listings starting at $999.

ZIP:

Search Chevrolet Silverado 1500 Questions

Chevrolet Silverado 1500 Experts

#1 John Carson
John Carson
Reputation 2,440
#2 Rowefast
Rowefast
Reputation 1,950
#3 tenspeed
tenspeed
Reputation 1,650
View All

Related Models For Sale

Used GMC Sierra 1500
789 Great Deals out of 68,232 listings starting at $1,800
Used Ford F-150
2,089 Great Deals out of 191,500 listings starting at $290
Used Dodge Ram 1500
405 Great Deals out of 10,893 listings starting at $1,000
Used Chevrolet Silverado 2500HD
303 Great Deals out of 28,749 listings starting at $2,995
Used Toyota Tundra
447 Great Deals out of 34,305 listings starting at $1,950
Used Toyota Tacoma
560 Great Deals out of 42,402 listings starting at $1,995
Used Ram 1500
926 Great Deals out of 112,963 listings starting at $5,386
Used Chevrolet Tahoe
598 Great Deals out of 33,195 listings starting at $1,375
Used Chevrolet Colorado
246 Great Deals out of 27,749 listings starting at $1,000
Used Chevrolet Camaro
375 Great Deals out of 31,274 listings starting at $2,500
Used Ford F-250 Super Duty
326 Great Deals out of 43,864 listings starting at $1,450
Used Chevrolet Silverado 2500
9 Great Deals out of 257 listings starting at $3,495
Used Chevrolet Silverado 1500HD
10 Great Deals out of 286 listings starting at $3,995
Used Dodge Charger
537 Great Deals out of 28,340 listings starting at $2,500
Used Ford Mustang
689 Great Deals out of 44,320 listings starting at $1,500

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.