Why does my car scan show no codes?
The scanner showed no codes, and said the car passed the scan test. I was expecting a sensor code, a fuel pressure code or an ignition coil code. The car had done this once before – but the code reader had correctly shown a faulty crank sensor.
Why does the OBD 2 scan show no codes?
The starter cranked the engine over, I had plenty of gas,and the battery is almost new. After getting the car towed home, I hooked up an OBD II Autoscanner. The scanner showed no codes, and said the car passed the scan test. I was expecting a sensor code, a fuel pressure code or an ignition coil code.
Why does my scanner keep erasing error codes?
Some codes prop up because certain events did not happen in the recommended sequence. For example if during the repair of a door, one of the airbag wires was removed with the battery not properly disconnected, the airbag warning light will stay on even if the wires were coupled back. The only way to remove the light is to scan and erase such code.
What should I do if I see a code on my scanner?
The codes you still see are pending codes, it will save those until it runs for a couple of days,if things are good the codes will go away, if they are still bad the codes will come back. Don’t adjust anything. focus on the sensor that is not working or area.
The scanner showed no codes, and said the car passed the scan test. I was expecting a sensor code, a fuel pressure code or an ignition coil code. The car had done this once before – but the code reader had correctly shown a faulty crank sensor.
The starter cranked the engine over, I had plenty of gas,and the battery is almost new. After getting the car towed home, I hooked up an OBD II Autoscanner. The scanner showed no codes, and said the car passed the scan test. I was expecting a sensor code, a fuel pressure code or an ignition coil code.
How can I clear trouble shooting codes on my car?
Some forums can only be seen by registered members. After you create your account, you’ll be able to customize options and access all our 15,000 new posts/day with fewer ads. I hear people use scan tools to clear trouble-shooting codes on their cars. I reset the ECU on my car to clear the codes, but they come back.
Why is the start button on my car not working?
Take the new Start buttons as an example. This advanced design is slowly replacing the ignition key as a means of starting. The Start button gets a code from a proximity key, but it could fail. If the battery in the key fob had gone bad, this could also lead to starting issues.
How to know if your car has no acceleration?
The car accelreated fine before the sensors replacement….should i reuse the old sensors or is the acceleration a new problem. Note, there are no trouble codes and no check/service engine light. Was this answer helpful?
What does it mean when check engine light is on but no codes?
No code being generated on the reader does not mean the driver is in the clear. In fact, when the light is on, the odds are just as high that there has actually been something wrong for a while even if no code is generated.
The car accelreated fine before the sensors replacement….should i reuse the old sensors or is the acceleration a new problem. Note, there are no trouble codes and no check/service engine light. Was this answer helpful?
No code being generated on the reader does not mean the driver is in the clear. In fact, when the light is on, the odds are just as high that there has actually been something wrong for a while even if no code is generated.
Is there an OBDII code for my car?
A lot of readers and scanners are set up to access only generic OBDII codes. Most vehicle manufactures also have their OEM codes that some Readers and Scanners can’t seem to read for lack of conversion ability.
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.
Why are there error codes on my car?
Codes are meant to indicate a possible malfunction in certain components or systems within a car. Some codes prop up because certain events did not happen in the recommended sequence.
What does a diagnostic code on a car mean?
Diagnostic Trouble Codes or OBD-II (in light-duty vehicles) or J1939 (in heavy-duty vehicles) trouble codes are codes that the vehicle’s OBD system uses to notify you about a problem. Each code corresponds to a fault detected in the vehicle.
Where are the diagnostic codes on a car?
Diagnostic trouble/fault/error codes are codes that are kept by the on-board computer diagnostic system. These are kept in response to a problem found in the vehicle by the system.
What is the standard Trouble OBD code for a car?
To describe the standard trouble OBD codes by family, it can be outlined as follow: For instance; P0301 – P is for powertrain, c for chassis, B for body, U for user network, and first digit shows if it is generic – 0 or manufacturer – 1.
What happens when you put DTC code in auto scanner?
Once the auto scanner completes the scanning process, it will give you a diagnostic trouble code or several codes. You can either write these down, transfer them to your laptop using a USB cable or Bluetooth if your scanner is Bluetooth compatible. You can then check these DTC codes in the manual to understand what your car is suffering from.
Where are fault codes stored in a car?
Diagnostic trouble codes (or fault codes) are codes that are stored by the on-board computer diagnostic system. These are stored in response to a problem found in the car by the system.
How are diagnostic codes stored in a car?
Diagnostic trouble codes (or fault codes) are codes that are stored by the on-board computer diagnostic system. These are stored in response to a problem found in the car by the system. These codes are stored when a sensor in the car reports a reading that is outside the normal/accepted range (Eg: fuel mixture too rich).
What does a trouble code on a car mean?
Modern vehicles have internal computers that not only control the overall performance of your car, truck or SUV, but they also alert you to a problem by generating trouble codes. Of course, if your vehicle’s computer produces one, you need to know what your trouble code means.
Modern vehicles have internal computers that not only control the overall performance of your car, truck or SUV, but they also alert you to a problem by generating trouble codes. Of course, if your vehicle’s computer produces one, you need to know what your trouble code means.
Where can I get a free p0421 code?
You can use AutoZone’s Free Fix Finder Service to get a free code reading and vehicle health report. Seeing P0421 on your code reader? Learn some common causes and solutions to the problem.
What should I do if my car engine is not cranking?
If your engine is not cranking, make sure that the car battery is charged and that it’s not failed. You can either try to jump start it from another car or with the help of a jump starter. You can also work with a different car battery if you have one at home. If the battery is good and the jump start didn’t help the engine to crank.
What does it mean when your car won’t start?
It might crank over slightly or not at all. Typically, this issue corresponds with a clicking sound that is indicative of a failed starter. If your car battery is fine and the car engine is still not cranking, you should defiently check the starter.
What does it mean when your car cranks but won’t start?
Some car owners think that it means that the engine is running. To a technician, it just means that the starter is successfully engaging the flywheel and rotating the engine’s crankshaft. Some technicians will interchange this with the word “cranking.”
What happens when you reset your car’s error code?
When your car had a problem the computer adjusted some parameters so it will run good.When he reset the codes the engine will start running normally but if if it still senses a problem it will revert back to where it was.
What does erasing error codes with the scanner solve the?
2ndly, after the scan was done and codes erased, the engine idle dropped soo low that the engine vibrates especially with the ac on. (Would appreciate yr replies, thanks.) Codes are meant to indicate a possible malfunction in certain components or systems within a car.
Can a faulty crankshaft sensor cause a car to stop?
The crankshaft sensor is necessary for your car engine to run on most car models. You also have a camshaft position sensor on some car models, which the car uses if the camshaft sensor is faulty. Here, a faulty crankshaft position sensor may not cause the car to stop entirely.
Why is the Check Engine light not coming on?
Even if the check engine light hasn’t come on, you may find a pending code that can guide you in your diagnosis. False input or lack of input from sensors like the crankshaft position sensor (CKP) or camshaft position sensor (CPS) can prevent the engine from starting.
What should I do if my car won’t start?
For the engine to work properly and your vehicle to start it requires fuel, a spark, and compression. Bear in mind when diagnosing this particular issue, if you experience any of the following three symptoms it may just be that you will need to replace your car’s fuel pump sooner rather than later.
Why does my Car start when the sensor is gone?
The computer receives a malfunction code when the sensor is completely gone. The symptom starts with difficulty in starting and leaves the car dead one day if you don’t get it fixed. The starting problem could be the result of electrical connection or circuit problems too. 5. Misfiring of the Cylinder
Why does my car not start when there is no fuel?
Aptly named, the fuel pump pumps fuel into the engine for the vehicle to start. If the fuel pump is melted, corroded, or just weak it may have difficulty bringing the fuel to the vehicle’s engine in a timely manner. And as we have learned throughout this journey, where there is no fuel there is no starting car.
It might crank over slightly or not at all. Typically, this issue corresponds with a clicking sound that is indicative of a failed starter. If your car battery is fine and the car engine is still not cranking, you should defiently check the starter.
What kind of car cut out and wouldn’t start?
I was driving my 2002 Ford Focus, when the engine cut out & would not restart. The starter cranked the engine over, I had plenty of gas,and the battery is almost new. After getting the car towed home, I hooked up an OBD II Autoscanner.
What to do if check engine light is on but no code?
Check the make and model of your reader to see what it is built for and if all else fails, head into a parts store and they should be able to read the issue at no cost to you. No code being generated on the reader does not mean the driver is in the clear.
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.
Why is there no reading on my scan?
Another reason for getting no reading is that the scan port has become clogged with dust after years of not being used.
How to fix a car that won’t communicate with a scan tool?
This feature is not available right now. Please try again later. Scotty Kilmer, mechanic for the last 48 years, shows how to fix a broken car the won’t communicate with a scan tool so you can’t get any information on the problem. Sometimes it’s as easy as just disconnecting parts to find the problem. 1. Actron Scan Tool: http://amzn.to/2ngeCQJ 2.
What causes your check engine light to not come on?
If your check engine light hasn’t come on, you may want to check the following: This other post examines in more detail the causes of an engine that won’t crank over. It has some simple tests to help you fix the problem. A loose or damaged fuel filler cap can cause your engine to stall. Photo in the Public Domain. III. My Engine Stalls
Why is my barcode scanner not working on my laptop?
The cable and scanner are mismatched. Some scanner models support multiple interfaces such as USB and RS232, but not on the same scanner. Confirm that the scanner and cable work together. Device has a hardware defect. Device needs to be sent in for repair.