I did a little searching so relax on flaming. 80k miles 02 6 speed. Light came on today and pulled these codes. I just had a mechanic change my front rotors and pads a few days ago and the 01572 deals with the ASCD brake switch which he coulda messed with right? isn't it just above the pedal? Besides this i didn't check anything and as far as fuses go i'm not sure how to check(can't be that hard)
0021 i guess is the camshaft position sensor? I don't know if it has been through the recall (I'll call tomorrow) How hard to replace? expensive? Also read you had to replace 2 intake sensors also? and it could be a solenoid but unlikely i guess?
Bottomline: what could cause both these codes? Where should I start with the diagnosing and what not? Please post any DIY forums if need be

 

Camshaft position sensor is pretty easy to change, one bolt and a wiring harness to unclip. The bank 1 (rear) requires removal of the airbox but I think you can get bank 2 (front) without taking anything off.

 

What about the other code I pulled? I think my camshaft code is for bank 2.. how much does a sensor cost? and are there any write ups on how to do it? I still don't understand my other code popped up right after a mechanic changed my pads and rotors! Thanks for any help.

 

The sensor is about $80, there are FSM links, download the FSM (factory service manual) and you can find the replacement proceedure in the Engine Control System section.

I doubt the two codes are related but your mechanic should be responsible for the 01572 code since it is brake related and he just worked on them.

 

alright well i'm disconnecting the negative for a while and we will see what codes pop up in the next few days. I doubt the mechanic will do it for free, but i'll do my best to get him too. the crank position sensor I will do once the codes come back. I believe the code was for bank 2.
The recall for that sensor was done in 2004 the dealership said. is 5 years about right for the lifetime of that part? The only reason I should post again is if the mechanic won't do the job and I need help. Or maybe for the cheapest place to buy the sensor. You were lots of help scott thanks

 

I just had Nissan replace the Camshaft Position Sensor Code P0340 and it cost $395.87. I recently sucked water into my motor via the Cold Air Intake so my assumption was they were related but insurance is claiming they are not. Good luck! BTW, the sensor was only $98.04 from Nissan.

 

Interesting.

My 02 (with 81k miles) just popped codes p0340 and p1572.

I had 6 codes - 2 p0340 followed by p1572, and then they repeated.

I wonder if the p1572 is tripped by the camshaft codes, or maybe when the car stalls?

My car has stalled 4 times - 2 while idling, and 2 while driving.

I guess I'm off to find the FSM (or my Haynes manual). I don't really have $400 for a $100 sensor, especially if it's as easy to replace as people say!

 

I should be so lucky. Called the closest dealer and they quoted me $480, and I'm sure that is before tax!


I looked it up in the Haynes manual and for 2002 and later models it says "these models use two camshaft position sensors, one at the rear end of each cylinder head (left side of vehicle). Due to the complexity of the engine management system, sensor diagnosis should be done by a dealer service department or other qualified automotive repair shop."

Not sure if I should be upset with Nissan or Haynes for such stupidity! I didn't pay $15-20 for a manual that is "based on a complete teardown and rebuild" to tell me to take it to the dealer! They could at least give me a picture to show me where it is!

 

Takes maybe 10 minutes to change, even the bank 1 (P0340) sensor. You have to remove the airbox and then you can access the single bolt and wiring harness (easily unclips) and swap it out in under a minute. Put the airbox back in and you are good to go.

I don't see how they can justify a $300 labor charge even with whatever diagnosis they may have done.

 

Do you remember what color the harness is?

Is it visible from the top of the engine?

I looked at the diagram in the FSM and think I have the correct part, but I want to be sure.

I removed "something" yesterday and it was covered in oil - after putting it back the car won't start and the "oil" light is now on, so I'm wondering if I had the correct sensor.

 

I know this is an old thread, but i'm just had the same 2 codes come up in my 02 Automatic. I've messaged 2damax to see what he did, but i wanted to see if anyone else had the same problem and what they did to fix it, any help is REALLY appreciated, Thanks!

 

I've never been able to fix my P0340/P0011/P0021 codes. The only time I get them (usually just the P0340) is when I get on the gas too much when the engine is cold or I hit the rev limiter (worn tires + cold pavement = enough wheel spin to hit the limiter before the transmission can shift) and even then, it is just a pending code. I felt a jerk or hesitation when it happens and then my car seems to go into some sort of limp home mode. Can't accelerate hard, feels like a major missfire. Turn off the car, turn it to run, reset the pending P0340 (and sometimes P0011 or P0021 or both), turn it off again and restart and my car runs fine again. I don't think it is the camshaft position sensor because I've already replaced it and my car isn't stalling. I also cleaned and retightened the grounds. Only other thing I can think of besides maybe a glitch in the current flash of the ECU is a possible oil flow problem in the VTC solenoids (which are what the P0011/21 codes are for), but you'd think it would occur under all driving conditions, plus the fact the main code is the P0340.

At this point, I am completely stumped and just live with the occasional hiccup. Happens maybe 1 time a month.

 

the problem in my case is that it's not a once in a while thing, i have my SES on all the time and i don't really know what to do. 2damax said he cleared his codes a few times and they went away, but i'm not sure if that will work for me or not. Anyone else have any insight to this situation?

 

bump.......

 

What symptoms beyond the SES do you have?

 

None that are visible, i couldn't hear or tell anything, but then again i'm 18 and am learning about the performance of cars and can't identify too much

 

Get the codes cleared a few times and see if/when the light comes back on. I bet it won't come back for a while, but if it does come back quick everytime, or if the light bugs you then the possible issues are below. If you want to figure out exactly what it is then you might have to pay a mechanic a little just to narrow it down. You can probably replace a sensor on your own though.

P0021 possibilities:
I

I

I

I

I

pick-up portion of the camshaft
P1572 possibilities:

Harness or connectors
(The stop lamp switch circuit is
open or shorted.)

I

Harness or connectors
(The ASCD brake switch circuit is
open or shorted.)

I

ASCD brake switch

I

Stop lamp switch

I

Harness or connectors
(The ASCD brake switch or stop
lamp switch circuit is open or
shorted.)

I

Incorrect stop lamp switch installation

I

Incorrect ASCD brake switch
installation

I ECM

 

I got both the P0021 & P1572 this past weekend. I just ran a quick check and only have 0021 code. The symptoms I am having is the car idles a bit rough at times and I noticed the car takes longer to start.(crank,crank,crank) It feels sluggish too but not all the time.

2002 automatic SE

 

Honestly, the camshaft sensor comes on and off for alot of local maximas here. (3 buddys of mine) it comes and goes.. wait a little and see if it goes away. I had it 10k miles ago. It was on for 100 miles than went away and hasn't been back since..

 

2002 SE 6MT here.
So how hard is it to change the camshaft position on bank one (P0011)? the light is bugging me a lot, and the symptoms i have are that it is hard to take off the car without revving up to 2000 RPM at least, my other car (MSMX-5 6MT) takes off easily at 1000 RPM. i also feel the car lacks power below 2000-2500 RPM its annoying. i looked at the FSM and will do diagnostic tomorrow per the FSM, if i had a bad sensor where can i get it? Autozone doesnt know/carry it and i'd hate to go to a stealership unless thats the only place to get it. thanks

 

Nissan has the sensor for around $90. You have to remove the airbox to get access to the single bolt that holds the sensor in place. Unclip the wires, remove bolt, remove sensor, replace, tighten bolt, clip on wires. That easy.

 

are we talking about the same sensor? i looked at the FSM and it shows a sensor (solenoid?) in bank1 (i know where bank1 and bank2 are, no confusions there) at the passenger side of the car, very easy to see, now in the diagnostic procedure for P0011 (page EC-271) i checked the IVT and the crankshaft (POS), i did not check the crankshaft (PHASE) because i had an appointment but IVT and POS read ok, all wiring was good and POS was cleaned (with a rag) just to be sure. it looks to me that the sensor you are referring is the PHASE that i think is located in bank1 drivers side. i just wanna be sure. i also tried to reset the ECM using the procedure with the accelerator pedal but it didnt work, any ideas why?