The car cranks but never starts and the radiator fan still on with the switch in on position. Do you. P is a supplementary restraint code. Is the air bag or seat belt light on? P may be the issue for the no start. It is a code that indicates a failure in the security system. Most commonly, the problem occurs when an uncoded key is used. If the security light is solid with the key on, engine off, the ECM has detected a problem and most likely it won't start. P is a specific Nissan code which indicates a security sensor problem.
Check for a burning smell around the radio area. I have seen coins slide into that area and cause a short in the AC amp. U This is relating to the same thing I mentioned. I feel something has caused the AC amp to short. P is when the PCM recognizes the fuel sensor signal is too high or low. Gauges will usually not work or provide false readings. U is a communication fault. Most likely tied into the other issues listed above. I believe you have more than one problem.
I believe the no start is related to the issue with the security system malfunction, but I need to know if the security light stays on solid KOEO. The other issues can be tied with the cooling fan staying on. I believe something has shorted with the air conditioning automatic amplifier. On more than one occasion, I have seen coins fall behind and cause a short.
Was this answer. It's funny that this problem is starting to show up.
It's just a poor design. Tell me, is everything working properly now? Please login or register to post a reply. Sponsored links. Ask a Car Question. It's Free!Codes P P P U View previous topic :: View next topic. Hello all need some help I have a Pathfinder and out of the clear blue after towing my empty 8x12 trailer.
I started the next day and the dash lit up like xmas. Does anyone know how to locate and test the speed sensor? Back to top. The vehicle uses the wheel speed sensors for the ABS system to determine vehicle speed.
U1001 NISSAN - Invalid or Missing Data for Primary Id
I had issues with mine. It shows all of the ground points and instructs you to clean them. There are a few in the engine compartment that are not too bad to get to and some behind the dash that are a real pain.
The problem occurred in multiple Nissan models of the mid's and you will need your freeze frame data to see if your vehicle's problem is addressed by this issue. Thanks smj99smj! This is what it said. This will assist in proper diagnosis results and repairs in addition to using diagnostic information in the Electronic Service Manual ESM.
See this bulletin for further detail. Just to update all I took the vehicle to the local dealership on Thursday I got a call this Monday pm to tell me they have finally found the problem. HOLD tight ABS Control module needed 1, The part alone is 1, Now that I have created another bald spot in my head from scratching.
I am going to look into this bulletin. Any help or suggestions? You can probably find it in pdf format at NissanHelp. All times are GMT - 8 Hours.Ford Diesels use oil pressure to drive the high pressure fuel injection system. The engine oil pump not only pumps oil to lubricate engine components, but also pumps oil into a reservoir to be used by the high pressure oil pump.
The high pressure oil pump pulls oil from the reservoir and raises the pressure to the point where it can pop open the injectors. The high pressure pump also increases the pressure of the diesel fuel so it can inject into the cylinders and vaporize quickly. The oil pressure generated by the high pressure oil pump is regulated by an electric solenoid that is pulsed by the PCM.
As this Injection Pressure Regulator IPR solenoid is powered and de-powered, a small shaft moves back and forth, allowing spurts of oil to flow into the high pressure oil lines The IPR can regulate pressures in excess of 3,psi. The high pressure oil moves from the pump to the cylinder head through braided steel lines. The PCM fires the diesel fuel injectors by energizing a solenoid coil in the injector. Unlike gas fuel injectors where the solenoid lifts a pintle off a seat to allow pressurized fuel to flow into the cylinder, the solenoid in Ford diesel fuel injectors allows high pressure oil to flow.
Since the minimum psi required to open the injectors is psi, the PCM monitors the actual pressure of the oil going to the injector with an Injection Control Pressure ICP sensor. If you receive this code, your first step is to check the oil level in the crankcase. Since the entire high pressure system depends on having enough oil in the reservoir, a drop in oil level of 3 or more quarts can bring the system to a quick stop.
Unlike a gasoline engine where the oil pressure sending unit is located in the engine block in an oil gallery, the oil pressure sending unit on a Ford Diesel is located in the top of the high pressure oil reservoir.
In other words, Ford wants to make sure the high pressure oil reservoir is getting good oil pressure. If the oil level checks out and the oil pressure light goes out, move on to the rest of the checks. To eliminate a cylinder head leak from the troubleshooting process, remove the high pressure line from the right side head and cap it with a plug that can hold 3,psi.
P1212 NISSAN - ABS/TCS Communication Line
Then remove the high pressure line from the left side cylinder head and attach a high pressure 3,psi or more gauge to the line. Then crank the engine and watch the pressure gauge. If you get a low reading, the problem is either a faulty high pressure pump or a bad IPR. First you must replace the IPR.
If the problem still exists, replace the high pressure pump.
Unlike the cheaper Haynes and Chilton manuals that cover multiple year models, leaving the exact information you need to fix your car, these professional manuals cover your exact year, make, model.If we can't tunnel through the Earth, how do we know what's at its center? All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. Hottest Questions. Previously Viewed.
Unanswered Questions. Nissan Quest. Nissan Pathfinder. Wiki User ABS actuator and electric unit control unit. Dead Weak battery. What the code U on a Nissan murano. Asked in Nissan Altima What ndoes code p mean on Nissan altima 2. The only way to reset the code on a Nissan Maxima's anti theft system is by taking it to the dealership. What does the error code U mean on a Nissan murano. Trouble code P means:Shift malfunction. Asked in Nissan Quest Why did check engine soon light come on for a Nissan quest van?
Something is effecting the emissions controls. The ECU has set a fault code and turned on the light.
Take it to a professional for repair. Trouble code P means:O2 sensor heater circuit malfunction bank 1 sensor 1. Trouble code P means shift malfunction. Asked in Nissan Maxima What is cause for Nissan maxima code p? Trouble code P means:Torque converter clutch circuit intermittent. Have the computer scanned. Then have the problem fixed that has set the code.
UK stands for United Kingdom. The flag colors are red, white, and blue.Password Forgot Password? Join Us! Engine Light On? Visit AutoCodes. Help solving U and U codes. I have a Nissan Altima that keeps giving the U and U codes.
The dealer has cleaned and tighten all the ECM gounds, dash frame ground and changed the battery. The second time they soldered grounds at terminals. Third time they replaced the TCM control unit. The fourth time they replaced the ECM. The car went into limp mode again today, autozone said the codes are once again U and U Does anyone know how to get this issue fixed? Getting a different car is not an option at this time.
Nissan released a service bulletin for this problem back in If this dealership that you have been going to cannot resolve this issue maybe you should either try another dealership or call Nissan and see what can be done since this issue is still active.
Here is the service bulletin that could be of some help. CAN line needs to be inspected. BB code is On. Smilies are On. Forum Rules. All times are GMT The time now is PM. Contact Us - Nissanhelp. Things You Can Do. Mark Forums Read. User Name.When the check engine light comes Nissan Maxima P code on the first you should check is the gas cap.
Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. Continue driving and see if the check engine light turns off. All you need to do is take the old one off and screw on the new one.
If you've already made it to the store, you might as well just replace it. While not car-threatening, it's good to take care of this right away to improve gas mileage. So you should chech it on our car models. The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time. If either sensor isn't working correctly, the car will run rough and the engine will be less efficient.
In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver. Parts or components should not be replaced with reference to only a P DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing. Code Search Please fill the "Code Box" to find engine fault code.
Ways to read engine trouble codes. Ways to clear check engine light on car panel. Check Engine Light Dictionary Ways to clear check engine light on car panel. Main engine trouble code archive on Web.
Copyright EngineTroubleCode. Check engine light comes on Engine stalling or misfiring Engine performance issues Car not starting. If one of these reasons for P code is occuring now you should check P repair processes.Theoretically you can drive for a few weeks or even months with a broken MAF sensor.
You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. So you should chech it on our car models. Disconnected, dirty or fouled spark plugs are common causes for engines that won't start.
Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly.
If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage. Parts or components should not be replaced with reference to only a P DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.
Code Search Please fill the "Code Box" to find engine fault code.
P1212, P1610, P1612, U1000, U1001, P0462.
Ways to read engine trouble codes. Ways to clear check engine light on car panel. Check Engine Light Dictionary Ways to clear check engine light on car panel. Main engine trouble code archive on Web. Copyright EngineTroubleCode. Check engine light comes on Engine stalling or misfiring Engine performance issues Car not starting.
If one of these reasons for P code is occuring now you should check P repair processes. Now don't ask yourself; What should you do with P code?
The solution is here :. Please check below f P code.