P0000 – No fault
| Code | Fault Location | Probable Cause |
|---|---|---|
| P0000 | No fault (Buy Part On Amazon) | - |
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Table of Contents
- What Does Code P0000 Mean?
- What are the common causes of code P0000?
- What are the symptoms of code P0000?
- How do you troubleshoot code P0000?
- Codes Related to P0000
- Get Help with P0000
What Does Code P0000 Mean?
You’re probably already familiar with how the modern OBDII system works in your car. If the MIL or CEL (malfunction indicator lamp or check-engine light) illuminates, this means that the ECU (engine control unit) has detected a fault, of some type, and that the powertrain is running in open loop mode, also known as “limp-home” mode. To ensure proper operation, you should hook up a scan tool and retrieve the DTCs (diagnostic trouble codes) stored in ECU memory. Given that there is a maximum of 10,000 DTC P-codes available, having a specific DTC to point you in the right direction is indeed helpful.
There is one DTC that stymies people almost every time, because it seems to make no sense. Defined as “No Diagnostic Trouble Codes Reported,” DTC P0000 should never show up on a scan tool screen. Indeed, if there are no drivability problems and no MIL, hooking up a scan tool generally results in a blank or “no codes” reading. There are two cases, however, when DTC P0000 may show up, even if you have drivability problems or an illuminated MIL.
What are the common causes of code P0000?
The main cause of DTC P0000 has to do with the scan tool in use. Some aftermarket scan tools are simply not equipped to read certain systems, protocols, and manufacturer-specific DTCs. As such, they default to display P0000, which can be a bit misleading. Update your scan tool software, make sure that it’s fully compatible with your year, make, model, and sub-model, or see if you can access an updated factory scan tool.
What are the symptoms of code P0000?
You may or may not experience any symptoms with DTC P0000 showing on a scan tool. The MIL may or may not be illuminated, and you may or may not experience any drivability issues.
How do you troubleshoot code P0000?
- If the MIL is not on, and you are experiencing no drivability issues, then chances are that the scan tool you are using is defaulting to the “P0000 – No DTCs Reported” reading. Keep calm and drive on!
- On the other hand, if the MIL is on or you are experiencing drivability issues, then it’s most likely that the scan tool you are using isn’t 100% capable of reading your vehicle. In addition to the 1,000 P0xx DTCs specified by SAE International (Society of Automotive Engineers), there are thousands of additional manufacturer-specific DTCs. Additionally, there are systems that some scan tools simply aren’t designed to handle, such as the CAN (controller area network) or the hybrid controller on a Prius.
After making sure that your scan tool software is updated, check again. If you still come up with DTC P0000, you will need a compatible scan tool, or ask your friendly local dealer technician if he can hook up the factory scan tool to retrieve stored DTCs.
Codes Related to P0000
Because DTC P0000 leaves the door wide open to other DTCs being present, practically any DTC could be hiding behind it. You’ll need an updated or factory scan tool to gain full access and read any DTCs in system memory.
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P0000 on the 94 ford bronco it running very rough looking to find out been looking but can’t figured out what it causin the problem
Franklin-
I would suggest using a different scanner or using the old DLC flash method under the hood. The scanner you’re using might not be fully compatible.
For 1988 to 1995 Ford pick-up trucks and Broncos equipped with EEC-IV
The only equipment you need is a jumper wire. Look on the fender well under the master cylinder. You will find the self-test connector and the self-test input – see picture. Check both for any damage or loose wires.
Start your engine.
Run it until it reaches operating temperature.
Shut it down.
Key On Engine Off Self-Test
Turn the ignition key to the on position.
Connect your jumper wire from the Signal Return pin on the self-test connector (see picture) to the self-test input.
Watch for the “Check Engine” light to begin flashing. It should take between 15 and 45 seconds, and you will hear clicking noises from the engine as the module does its tests.
Count the flashes and record the codes.
When the flashes end, turn off the key and disconnect the wire.
Engine Running self-test
Start your engine.
Run it 2000 rpm for two minutes.
Shut it down and wait 10 seconds.
Start your engine.
Connect your jumper wire from the signal return pin on the self-test connector (see picture) to the self-test input.
Watch for the ID code:
Four flashes – 8 cylinder
Three flashes – 6 cylinder
If equipped with Brake On/Off Switch, depress and release the brake pedal.
If equipped with Power Steering Pressure Switch, turn the steering wheel at least one-half turn and release it.
If you get a Dynamic Response Code – one single flash of the Check Engine light – push the throttle wide-open and release it.
Count the flashes and record the codes.
Codes
Depending on the year and problem, you will get a two or three digit code. There will be a two second pause between digits and a four second pause between codes.
For example, on a 1990 full size Bronco, you could see:
Four flashes, a two second pause, two flashes, a four second pause, three flashes, a two second pause, eight flashes. You have a code 42 and a code 38.
Started shifting funny not wanting to shift out of gear into gear start slugging down almost wants to kill the motor it has killed a motor a few times pulls up codes clear codes does the same thing having problems shifting gears going up and down erratically stalling motor everything
My 2015 Jeep Patriot is showing this code but the check engine light is not on. The car however, seems to be “jerky” or “sputtering/misfiring(?)” every now and then. I will take it down and see if someone can look at the car but wanted to get your thoughts.
Kelly-
It seems like the problem you’re experiencing isn’t happening often enough to set the DTC. I’ve seen this set “soft codes” that clear out when the engine is shut off. When you get the misfire/hesitation/sputtering, does the check engine light come on? Next time it happens, try scanning for codes before shutting the engine off.
Also, do you notice it happening under certain conditions? Engine cold/hot, high/low speed, hard/soft acceleration, rain/fog/dry? In these cases, one of the first things to do, even without a DTC, is to inspect spark plugs, spark plug wires, and ignition coils. Might be a good idea to have someone scope the coils and see if one or more is weak. Also, regarding spark plugs, be sure to only use OEM-style plugs to eliminate that possibility.
Ford cornet 2012 model arıza lambası yanıyor orjinal ford ciyazıyla bağlantı kurduk p 0000 arıza kodu veriyor belirsiz kot arac bazen çalışmıyor bu arızayı bulamadık araçta tekleme yok arada bir istop eder gibi yapıyor düzeliyor sorun ne olabilir
[…] with your scanner maybe. P0000 is no fault and if no CEL light, then drive it like you stole it. P0000 ? No fault ? OBD2 Trouble Codes Larry 2015 F350 Ultra Lariat 6.7L CCLB DRW 3.73 Limited Slip, Green Gem Metallic w/ […]
Hi had this code appear on my car. My Peugeot 307 is cranking but not starting and I have replaced the ignition coil. What else could be the problem?
Shez-
Unfortunately, the P0000 code won’t tell us anything at all. When it comes to no-start, go back to the basics: air (MAF), fuel (you have fuel pressure, fuel in the tank, fuel injectors working?), spark (new ignition coil is plugged in? have you tried putting the old one back?). Check all fuses and relays, particularly those related to fuel injection and ignition.
Diagnosing a no-start can be a pain. Since you’re getting a P0000, you might also have a Peugeot-specific DTC that your scanner can’t read. You might have to get a different scanner or have the dealership scan it.
-Ben
Sir please help I have daihatsu hijet660 cc turbo aromatic i have problem in gair shifting it shifts second gair at 30km 3in 50 km and when engine makes big sound
Imran-
Have you had the transmission serviced recently? If so, was the proper transmission fluid used? I’ve seen recently-serviced automatic transmissions killed because of incompatible fluids. For example, Toyota T-IV and Toyota WS are not compatible with each other. Similarly, Dexron III and Toyota T-IV are not compatible. Also, there is no such thing as ATF converter or some way to make these fluids compatible.
In any case, I would say that the high-rev shifting may have to do with the throttle position sensor or perhaps a shift solenoid in the transmission. You might need a Toyota / Daihatsu scan tool to get a DTC out of the system that will help you with further diagnosis.
-Ben