Question about 2003 Chevrolet Silverado 1500

1 Answer

I recently had my transmission replaced on my truck and now i have ran into the problem of my data port has stoped working. when i plug my code reader in it does not communicate with the compter at all.

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Chevrolet Master
  • 3,854 Answers

Start with the simple and check all your fuses. Sounds like the power on the data port has no power to it and is causing your code reader does not power up to read any codes.

Good luck and keep us posted.

Posted on Sep 01, 2010

  • redneckiowan Sep 02, 2010

    yes this was what i was looking into but i do not know which fuse or relay it runs thru or if it runs thru one



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I have a 1998 mitsubishi galant and the transmission changes from 1st to 2nd gear fine. But, over-revs (up to 3200 rpm) to change from 2nd to 3rd gear. TPS was checked and is working fine. The computer and...

use a scanner that is capable to read transmission codes and data, if there is no codes, check the pressure from the transmission test ports, because is leaking pressure internally.

Dec 17, 2014 | 1998 Mitsubishi Galant

1 Answer

I recently had work done to my transmission , why will it now go forward , but not in reverse ?

Bring it back where you had it worked on. There is likely a defect in the work that was done. There are relays inside the transmission on some newer cars and that connection may have been damaged or not plugged in.

Oct 12, 2014 | Cars & Trucks

1 Answer

99 f250 v10 auto 4x4-cat converter imploded,

The fuel pressure sounds too low. Is it multi-port injection? Check the fuel pressure against your specs for the car and engine. MPFI systems usually require 40-50 psi.

Apr 16, 2013 | 1999 Ford F350 Regular Cab

1 Answer

Transmission will not shift into high gear

That chocolate cottage cheese may have been transmission fluid mixed in with your engine coolant (transmission cooler in radiator ruptured), which means you could have been getting engine coolant in the transmission. What does the fluid on your transmission dipstick look like? If the transmission fluid is contaminated, it could cause a lot of problems in the transmission. If you suspect this, have a transmission shop check it out. Just changing the transmission fluid will not correct this, as there will be a lot of fluid that doesn't drain out - in the torque converter, valve body, and all the passages and clutches.

Apr 29, 2017 | Isuzu Rodeo Cars & Trucks

1 Answer

Nissan Hardbody timing issue

The following are the general instructions on the start of diagnosing any electronically controlled engine or transmission problem.

The engine and the automatic transmission (transmission control is only for automatics, engine is still computer controlled no matter the transmission type) in this vehicle are computer controlled and in most cases when a fault occurs a fault code is stored in the memory of the computer control module. There are exceptions to this, such as the Mass Airflow Meter and fuel pressure problems. What must be done is to have all the basic testing done such as a scan of the system for fault codes as well as a check with a live data scanner tool for engine functions that are not within range of normal, a trained technician is required to know what is correct and what isn't, then based on careful diagnostics done from a factory repair manual the correct part is replaced or the wiring repaired or the computer replaced (known as the PCM or ECM,ECU), which is very rarely the problem. Other basic checks must be done as well such as mechanical problems with the engine as well as engine state of tune and mileage on the engine. The transmission can have mechanical issues as well such as no gear engagement at all or a failed pump or other pressure related problems. Also engine mechanical problems can and do cause many drive-ability related problem such as rough idle and other symptoms.

Feb 13, 2013 | Nissan Hardbody Cars & Trucks

1 Answer

Transmission wont work after car stoped

check transmission fluid with car running in park on level ground if full is it a red color or dark brown it should be red does it smell burnt if so transmission and torque conveter will need to be rebuilt or replaced. if no fluid I suspect a broken transmission line much easier and inexpensive to replace if this helps please leave me good feed back

Feb 02, 2013 | 2004 Ford Freestar

1 Answer

My speedometre stoped working in my suburban 2001, everything else works fine

01 Suburban has an electronic speedo which works by way of a speed sending unit on the tail end of the driver's side of the transmission. Replace that speed sending unit if there is any transmission fluid coming out of the plug entrance (where the wires plug into the sensor). Could also be a speed sensor mounted on the top of the differential, but less likely. Do get it fixed because either one of these could cause shifting problems in the transmission... Ugly.

Aug 09, 2012 | 2001 Chevrolet Suburban

1 Answer

My odometer stoped working how do i fix it?

Replace the speed sensor on the transmission/transaxle,

Jun 05, 2010 | 1994 Chevrolet S-10 Blazer

2 Answers

Limp mode on chrysler grand voyager 3.3 le auto. can still drive but not above 50mph,how do i fix or can i

If it's in limp mode, the check engine light is on steady, or blinking, or a combination of the two. You need to have trouble codes read, most parts stores offer this as a free service. They will plug a hand held scan tool into the vans diagnostic port under the dash, and 'read' codes stored in the computer. They can explain what they mean, and make recommendations on what to do to fix it. If you have any questions after that, post them here with the code #'s.

Apr 18, 2009 | Chrysler Voyager Cars & Trucks

1 Answer

Obd code po200 and po300. 2002 chevy 2500 hd

this trucks have very coming problem with the injectors stuck open or close, and some times they just works great and some does not, dealer has an updated injector assembly, i recomend you to install this update and spark plugs and plug wires, if you had replace plugs and wires recently just redo the spark plugs with the injectors

Jun 15, 2008 | 1999 Chevrolet C2500

Not finding what you are looking for?
Cars & Trucks Logo

55 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts


Level 3 Expert

78257 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides