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

78,025

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.

78,025

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??????????????????/

78,025

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 9 nationwide Silverado 3500 listings starting at $13,888.

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
9 Great Deals out of 579 listings starting at $16,800
Used Chevrolet Silverado 2500HD
18 Great Deals out of 1,272 listings starting at $3,998
Used Chevrolet Silverado 1500
172 Great Deals out of 10,490 listings starting at $2,230
Used Dodge Ram 3500
3 Great Deals out of 67 listings starting at $11,200
Used GMC Sierra 3500HD
12 Great Deals out of 761 listings starting at $16,900
Used Ford F-350 Super Duty
31 Great Deals out of 1,157 listings starting at $2,795
Used GMC Sierra 3500
6 listings starting at $16,888
Used Ram 3500
18 Great Deals out of 1,414 listings starting at $21,990
Used GMC Sierra 2500HD
28 Great Deals out of 1,347 listings starting at $3,600
Used Ford F-250 Super Duty
27 Great Deals out of 658 listings starting at $1,790
Used Dodge Ram 2500
9 Great Deals out of 87 listings starting at $2,100
Used Ford F-450 Super Duty
57 listings starting at $16,830

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.