Why do I get No reading on my OBD codes?

Check your fuses to see if any have gone bad. Remember that your car or truck might have more than one fuse box. This should be covered in your owner’s manual or a proper service manual. Another reason for getting no reading is that the scan port has become clogged with dust after years of not being used.

Why are scan tools not communicating with OBD2 system?

Check your fuses and replace any that are blown. Usually the cigarette lighter fuse also powers the DLC (data link connector) with this fuse blown the scan tools can not communicate with the OBD2 system. Why scan tool doesn,t connect to truck. ecm has been replaced????? was it programmed ?

Why is OBD II not communicating with state?

Help!!! Failed state inspection because OBD II wont communicate with tester, (or scan tool). I checked for blown fuses, especially cigarette lighter as tech suggested. No blown fuses! How do I troubleshoot this problem?

Where can I get an OBD code scanned?

You can have your codes scanned free at most auto parts chain stores. If you’ve plugged into your car’s diagnostic port and aren’t reading anything, you might think that your OBD-II brain has been fried, but don’t declare it dead yet. The most common reason for getting no OBD code is simply a blown fuse.

Why does my OBD scanner not work with a cigarette lighter?

Fat Lipped Billets FTW!!! As mentioned the cigarette lighter fuse also powers the OBDII port. Holy shit that makes no sense! At the same time, it makes perfect sense, because my cigar lighter doesn’t work.

Why is the OBD II scanner not communicating?

Check the fuse box (Power Panel), it might be the reason why PCM isn’t able to receive power as well as communicate.

Why is my OBD scanner not working on my GMC Sunfire?

Check your fuses, I can not remember exactly which one,but I have seen multiple times that the OBD port fuse is blown. I know some smaller GM’s (cavaliers, sunfires) are run off the electric seat fuse. The yuppie speaks the truth. Don’t ask me why GM put the OBD port on that circuit……Pull the cover and swap a fuse in that spot.

Check the fuse box (Power Panel), it might be the reason why PCM isn’t able to receive power as well as communicate.

Can a car pass inspection if the Check Engine Light is on?

It is true that your car will not pass inspection if the check engine light is on. However there is more to it than simply turning it off. By the way the easiest way to turn off the check engine light would be to disconnect the battery for 30 seconds.

Is the OBD port on my Dodge Ram working?

A lof of hangin out and drinking with friends. 2001 Dodge Ram 2500 with 5.9L Cummins. My obd port hasn’t worked since I’ve had the truck. Bought it used at 82,000 miles in May 2014. Now at 87000. Checked all fuses, they’re good. Everyone recommends checking the main cab fuse as it powers the obd port.

What causes a ticking sound in a Dodge Ram 1500?

A bad or failing manifold leads to decreased engine performance, and broken manifold bolts are common in Dodge Ram 1500s of all ages. The most common symptom of broken or degraded bolts is a ticking sound on cold starts, frequently heard from the passenger side of the truck.

How to know if your Dodge Ram has transmission issues?

There are a variety of ways transmission issues show up in these trucks, including: 1 Slow starts. 2 Engine running rough. 3 Bumping hard into 1st gear. 4 Jerk when shifting from 1st to 2nd. 5 Slipping into gear when in traffic. 6 Hard downshift to stop when slowing down.

How does the computer work on a Dodge Ram 3500?

Sensors positioned throughout the Dodge Ram 3500 send trouble codes to the computer when they sense a malfunction. The computer illuminates warning lights and service lights on the instrument panel to alert you to have the vehicle looked at and repaired by a qualified mechanic.

What are the trouble codes on a Dodge?

1 Dodge Codes 2 Trouble Code 3 P0171 4 P0300 5 P0301 6 P0340 7 P0420 8 P1000 – P1099 (Fuel and air metering and auxiliary emission control) 9 P1200 – P1299 (Fuel and air metering – injector circuit) 10 P1300 – P1399 (Ignition system or misfire)

Where can I find the OBD2 code for a Dodge?

Check specific manufacturer pages on the site, as some of them, we list the OBD2 codes on those pages for those specific vehicles. . Engine control module (ECM) -RAM read/ write error

Why is my computer not working on my Dodge truck?

Ironically, only several codes pertain to the actual engine in your truck. Many of the codes can indicate a problem with the transmission, emissions control system and even the fuel system. To erase the code and get the light to go off, you will need to reset the computer. This will involve cutting the power to the computer.

What does a check engine light on a Dodge truck mean?

The computer in your Dodge truck generates and stores error codes related to critical vehicle component systems. When your Dodge truck generates one of these codes, a Check Engine Light will illuminate on the dash. This light can indicate a variety of problems. Ironically, only several codes pertain to the actual engine in your truck.

What does a bad camshaft position sensor code mean?

Once your car’s computer detects a CMP sensor failure, it will trigger the engine light and store a diagnostic trouble code (DTC) in its memory (see the table below for common camshaft position sensor trouble diagnostic codes). IV. CMP Codes and What They Mean

Can a faulty camshaft sensor cause a P0300 code?

Answer: No, a faulty camshaft sensor can’t cause a knocking sound unless it affects ignition timing. Question: Can a faulty camshaft sensor cause a P0300 code? Answer: A number of faulty components may trigger a P0300 code, including: a bad camshaft position sensor

What does the warning no fuse mean on the dash display?

What does the warning NO FUSE mean on the dash display – Answered by a verified Dodge Mechanic We use cookies to give you the best possible experience on our website. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policyunless you have disabled them.

Are there fuses under the hood of the car?

In the meantime, there are a couple fuses under the hood in fuse block that are installed when dealer gets the car. Look in owners manula for any fuse marked something like IOD, or Radio IOD etc,. Jiggle the fuses around or even remove the IOD marke sfuses and reinstall. It is possible one of the ones dealer installs is not making good contact..

Why does my GM car say no start no crank?

How to diagnose a no start no click on GM vehicle. If you have a late model GM vehicle and turn the key only to hear nothing, you’ll most likely think you have a dead battery—and you may. But a no start, no crank, no click condition can be far more involved than that.

Why is my OBD2 not connecting to my computer?

But after conducting research online and speaking to different mechanics and technicians, I found out that a wide range of problems can cause it. These issues include an incompatible obd2 scan tool, bad fuses, damage in the circuit board, ECU, and failed computer. Non connecting data Port Issue.

Can a programmer read the OBD on a Dodge?

I cant read the OBD, I have no tach, water temp, OIL Pressure goes to default 40PSI, I have no read out on the PRND12, no cruise and no MPG read out. Accoriding to Dodge and the main computer there, The TIPM checks out, the Cluster checks out but the ECM shows no life.

What should I do if I Can’t Read my OBD code?

If you’re scanning your car’s computer for OBD (on-board diagnostic) codes and getting nothing in return, there are some things you should check before you give up and take your car to the shop.

Why is my OBD2 scanner not communicating with my car?

Each time I have tried scanning my vehicle for codes using the OBDII scanner, there is a message on the scanner stating that it is unable to communicate with vehicle. There are lots of issues with my car, but I am not able to correct them because of the OBDII issues.

What does OBD stand for in a car?

Since the mid-1990s vehicles have had a built-in troubleshooting system known as OBD. A computer in your car monitors sensors that measure such things as engine temperature, exhaust gas mixture, and other metrics that would mean very little to you unless you’re a serious automotive troubleshooter.

Why is my scan port not working on my car?

Remember that your car or truck might have more than one fuse box. This should be covered in your owner’s manual or a proper service manual. Another reason for getting no reading is that the scan port has become clogged with dust after years of not being used.

What to do when your status light does not blink?

If the status light does not start blinking after 90 seconds, release the gas control knob, turn the gas valve off, and wait 10 minutes before attempting to relight the pilot. On newly installed water heaters, it may take up to 2-3 lighting attempts before the pilot lights and the status light starts blinking.

Where can I get a diagnostic trouble code?

Diagnostic trouble codes let technicians know what is wrong with your vehicle, whether it be bad sensors or faulty modules. Contact MAS Repair for services with light control modules, mileage correction, airbag module reset, climate control, ECU cloning, and much more. MAS Repair is located in Buford, GA.

Where can I find the trouble code for my car?

Almost anyone at home can troubleshoot codes manually with cars that require OBD2 or OBD1. When a car’s dash lights appear, trouble codes are saved by your car when it realizes something is wrong. Car manufacturers make these codes easy to access for anyone, not just car techs.

Is there check engine light but no code?

There are other cases where there’s no check engine light but codes. For example, any problem that affects the emissions system will automatically light the check engine light. But if the problem is not emissions related, and also not critical, it may be stored in the computer but not light the check engine light.

Can you do a diagnostic without a trouble code?

Throughout the years, more emission related systems and components have been incorporated to the list of computer monitored systems. Still, some performance and driveability problems can appear without the computer setting any DTC. So you need a different strategy to do a diagnostic without the help of a trouble code.

What happens when you turn off the Check Engine light?

Some computers are programmed to see a problem, store a code, and light the check engine light. Then later, if the problem does not reoccur, the computer will turn off the check engine light and store the code as a HISTORY CODE.

Why is the diagnostic port on my Ford Expedition not working?

There is just no communication. I noticed there is a 4-pin gray connector taped back behind the OBDII port and was wondering if something needed to be plugged into that as well to enable the reader to read the codes from the PCM. I’ve seen some adapter harnesses before used in parallel with the OBDII port, but have not yet ever used one myself.

Where can I get the OBD codes for my car?

You do this by plugging a scan tool into a computer-style port on your car (your repair manual will show you where it is) and downloading the codes. Then you can go to a site such as OBD-Codes.com and see what the codes translate into.

How many error codes are there on a car?

In a modern car, there can be hundreds of error codes, each one pointing to a specific issue. A mechanic—professional or skilled do-it-yourselfer—can access these codes to measure the overall health of the engine.

Is there a way to check engine codes without an engine reader?

Try the first two methods first, if you are able to get the engine codes through them then that’s amazing! But if not, then you can try this method. The main component of this step is using a piece of wire. The piece of wire will do the trick and you will achieve the engine code without an engine reader.

What is the diagnostic code for Ford check engine light?

Refer to our Generic OBD II code list for definitions on all other Ford diagnostic trouble codes. P1000 OBD System Readiness Test Not Complete P1001 KOER Test Cannot Be Completed

Where do I find the engine code on my car?

By doing this, the engine code with appear on the digital odometer and then you can interpret it and fix the problem. This is the second way of figuring out the engine codes and it is considered to be the easiest because it involves only a few pretty easy steps and even inexperienced drivers will be able to do it.

Why is my OBD-2 not ready for emissions check?

So you’ve performed a code erase on your OBD-II-equipped vehicle, and now you’re due for an emissions check. But your code reader shows you’re not ready because some of the OBD-II emissions-related tests haven’t completed yet — specifically that the “HAS RUN” flag remains unset.

Why is the has run flag still on my OBD-2?

But your code reader shows you’re not ready because some of the OBD-II emissions-related tests haven’t completed yet — specifically that the “HAS RUN” flag remains unset. What to do? Well, you can drive around on your expired inspection sticker for a few weeks, checking until the flag goes away.

Why do I get No OBD code on my car?

Blown Fuse If you’ve plugged into your car’s diagnostic port and aren’t reading anything, you might think that your OBD-II brain has been fried, but don’t declare it dead yet. The most common reason for getting no OBD code is simply a blown fuse.

What are the OBD codes for a transmission?

The answer on this topic that was provided by Don Bowman — https://www.obd-codes.com/p2181 — contains the statement, “We are aware that a flash update to the PCM on certain vehicles on the… I have a fault code po798 and p2716 for this transmission. It is not shifting into high gear basically. It is also in limp mode.

What are the symptoms of a bad ECM power relay?

A bad relay may cause the vehicle to crank, but not start, or sometimes not even crank at all. 3. Battery drain or dead battery. A failed ECM power relay can also cause a battery drain or dead battery. If the relay shorts it can leave power on to the computer, even when the vehicle is turned off.

Why do I get No reading on my OBD codes?