No power to the computer No power to the scanner

5

Asked by Mar 30, 2017 at 12:33 PM about the Chevrolet Silverado 3500

Question type: Maintenance & Repair

I hooked up a scanner to the truck and nothing happened. The scanner didn't
even light up. the batteries are fully charged. Where does the power to the
computer come from? what wiring harness carries the power to the computer?

6 Answers

78,055

What year truck is this?

5

2003 chevy silverado 6.6 duramax

5

What wire harness carries power to the ECM?/?? I feel it is a frayed wire cause sometimes it starts and runs fine.

78,055

Bottom right #16 comes from the battery is the power to fire up your scanner.

5

OK git it working. The code is P0380 Glow plug Heater circuit A. This truck 2003 chevy Duramax 6.6 turbo HAS a GLOW PLUG CONTROLLER MODULE and a GLOW PLUG RELAY. Which one heats up the glow plugs??????????????????/

78,055

The relay just switches on power. But here is a video on this... https://youtu.be/WMimUyz8yR0

1 of 1 people found this helpful.

Your Answer

Silverado 3500

Looking for a Used Silverado 3500 in your area?

CarGurus has 500 nationwide Silverado 3500 listings starting at $5,900.

ZIP:

Chevrolet Silverado 3500 Experts

  • #1
    casper271
    Reputation
    90
  • #2
    Chris Jozwiak
    Reputation
    30
  • #2
    F_O_R
    Reputation
    30
View All

Related Models For Sale

Used Chevrolet Silverado 3500HD
126 Great Deals out of 10,637 listings starting at $7,995
Used Chevrolet Silverado 2500HD
450 Great Deals out of 29,772 listings starting at $2,795
Used Chevrolet Silverado 1500
2,925 Great Deals out of 161,757 listings starting at $1,295
Used Dodge Ram 3500
89 Great Deals out of 2,300 listings starting at $4,900
Used GMC Sierra 3500HD
76 Great Deals out of 4,589 listings starting at $9,995
Used Ford F-350 Super Duty
376 Great Deals out of 26,347 listings starting at $2,500
Used GMC Sierra 3500
4 Great Deals out of 229 listings starting at $3,950
Used Ram 3500
195 Great Deals out of 17,860 listings starting at $12,995
Used GMC Sierra 2500HD
120 Great Deals out of 13,900 listings starting at $1,500
Used Chevrolet Silverado 2500
7 Great Deals out of 236 listings starting at $3,000
Used Chevrolet Silverado Classic 3500
6 Great Deals out of 121 listings starting at $5,500
Used Chevrolet C/K 3500
189 listings starting at $6,990
Used Ford F-250 Super Duty
482 Great Deals out of 47,159 listings starting at $1,817
Used Dodge Ram 2500
155 Great Deals out of 5,445 listings starting at $2,995
Used Ford F-450 Super Duty
48 Great Deals out of 2,551 listings starting at $4,995

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.