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

58,905

What year is your Silverado? -Jim

1 out of 1 people think this is helpful.
45

2006

1 out of 1 people think this is helpful.
58,905

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 out of 3 people think this is 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 out of 3 people think this is helpful.
58,905

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 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Need desperate help with trouble codes regarding emissions! 3 answers

    I need some help with some trouble codes. I have a 2000 Chevy Silverado 1500, 4x4, with 5.3l V-8 engine. Over the past week, I've had the following trouble codes: P0300 and P0137 (can't remember e...

    2000 Chevrolet Silverado 1500 LS Ext Cab Short Bed 4WD

    -

    Maintenance & Repair

  • 2004 silverado Z71 flashing check engine light 47 answers

    my check engine light has come on and had started blinking just lately. which means engine misfire. after replacing the plugs and wires the truck seems to have a rough idle and still seems to misfire ...

    2004 Chevrolet Silverado 1500 Z71 Crew Cab Short Bed 4WD

    -

    Maintenance & Repair

  • Engine Shutting off after about 10-20 seconds on 2004 Silverado 1500 54 answers

    Can anyone shed some light on this problem. After driving my 04' Silverado 1500 all day without any problems, after the truck sat in the driveway for a couple of hours, the truck started right up, but...

    2004 Chevrolet Silverado 1500

    -

    Maintenance & Repair

  • rough running 15 answers

    put in ngk TR51x spark plugs iridium under my hood it says gap is .060 these plugs were gapped at . 040 i was told to leave them gapped at .040 . should i have changed the gap to .060 ? any help would...

    2000 Chevrolet Silverado 1500 LS Short Bed 4WD

    -

    Maintenance & Repair

  • 1999 Chevy Suburban, 5.7 L. 148,000 miles, all power options #5 cylinder code 3 answers

    My truck did not pass NH state inspection emissions test because: bank 1, sensor 1- O2 sensor #5 cylinder check engine light was also burnt out I replaced all 8 spark plugs, both front O2 sensors,...

    1999 Chevrolet Suburban K1500 LT 4WD

    -

    Maintenance & Repair

Silverado 1500

Looking for a Used Silverado 1500 in your area?

CarGurus has 151,095 nationwide Silverado 1500 listings starting at $1,500.

ZIP:

Search Chevrolet Silverado 1500 Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Chevrolet Silverado 1500 Experts

#1 John Carson
John Carson
Reputation 1,760
#2 Silverado_owner_2006
Silverado_owner_2006
Reputation 1,490
#3 tenspeed
tenspeed
Reputation 1,420
View All

Related Models For Sale

Used GMC Sierra 1500
1,020 Great Deals out of 59,972 listings starting at $1,299
Used Ford F-150
3,036 Great Deals out of 207,199 listings starting at $1,990
Used Dodge Ram 1500
531 Great Deals out of 13,026 listings starting at $1,800
Used Chevrolet Silverado 2500HD
396 Great Deals out of 27,129 listings starting at $2,998
Used Toyota Tundra
673 Great Deals out of 27,892 listings starting at $2,500
Used Toyota Tacoma
713 Great Deals out of 31,628 listings starting at $2,750
Used Chevrolet Tahoe
862 Great Deals out of 27,925 listings starting at $1,700
Used Ram 1500
1,302 Great Deals out of 115,236 listings starting at $6,500
Used Chevrolet Colorado
308 Great Deals out of 17,667 listings starting at $1,995
Used Chevrolet Camaro
437 Great Deals out of 40,498 listings starting at $3,500
Used Ford F-250 Super Duty
442 Great Deals out of 42,874 listings starting at $2,750
Used Chevrolet Silverado 1500HD
11 Great Deals out of 313 listings starting at $4,988
Used Chevrolet Silverado 2500
5 Great Deals out of 282 listings starting at $3,995
Used Chevrolet Avalanche
235 Great Deals out of 5,838 listings starting at $2,400
Used Chevrolet C/K 1500
1,071 listings starting at $1,250