I have a 99 Maxima GLE. I recently converted to 5 speed. I had to replace my PCM-ECU in order to get rid the Automatic Tranny Codes. Everything is working fine. I don't have any mechanical problems, but sometimes I get the P1706 code after driving for 100 miles. P1706 (Park/Neutral position switch or circuit fault). I am not sure how to get rid of this code. Does anyone know a way to get rid of this damn code? Thanks in advance.

 

Did you connect the switch on the bottom of the new 5-speed to anything?

This is what sends the signal to the ECU that the trans is in neutral, reverse, or any forward gear.

This should connect to the wiring harness in the engine bay. But if this used to be an auto, then I'm not sure if there would be anywhere to plug it in.

 

itsa damn near impossible, the only sure way is to change theENTIRE wire harness under the hood.

 

Damn, so I am stock with this damn code? Unless I change the wire harness?

 

thats about right. its next on my list to do.

 

good to see that topic.
i need to change my ecu too and i want to know what kind of problems i can have

 

If you could, please get me the entire requirement for that. I would appreciate it.

I would say this, If you have a 99 Maxima, forget the 5 SPD swap, this has been a pain in the A$$.

 

why mine went smooth

 

more details please.
are you using 5spd ecu now?? did you get any codes when you changed ecu?? how about immobiliser??

 

will be starting my 5spd swap soon. thanks for the heads up.

Now who has a 5spd trans for cheap?

 

i might have on but not sure yet

 

I got a 99 SE 5SP ECU for 120 bucks shipped. It took away all 5 codes, that i was getting with my Auto ECU. Only code I am getting now its the p1706. You need to drive your car with your auto ecu to a nissan dealership. Have them program your keys into the new ECU after you replace the ecu at the Dealership. You need to know someone there for that.

 

I am glad yours went smooth. You forgot to mention you changed your cali spec to fed, so you can have that ECU working for you.

 

my max is federal. will ia have the same problem with that code after i change ecu or its only in cali??

 

you might have the same problem, but only way to find out... you need to do it and see for your self.

 

damn. thats sucks

 

I found out what was the problem, this issue had nothing to do with the car wiring!!!!! For those of you who thought this was wiring issue, I recommend you do a little research before you post something like that.
If you are having problem starting your car, or you are getting a p1706 code, you need to replace this switch. It would only take you 10 min.

Here is couple of picture of a Park/Neutral position switch.
This switch is located by the clutch Pedal.
Here is the Nissan part number:

SW ASSY-STOP LA
040614
25325-D4000
$27.99

 

yours did'nt come on the clutch pedal? where di you splice it on the other end?

 

no mine came with it. It was a bad switch. I did not do the wiring, I could not tell you how it got splice up. Sorry.

 

man i wish my car was stick...after reading this though it seems like a hassle to get it in good working order..if i could swap it to stick i wouldn't sell this car but run it into the ground.. =/

 

I've got news for you. Call it what you want, but that picture is NOT of the park/neutral switch. It may have fixed your problem though.

 

Yeah budy, I went to nissan and i asked for Park/Neutral switch, and guess what they gave me.... The Item in that picture. Why don't you take the model number and call nissan, and ask them what that model number is for....

By the way maybe you can show me a picture of Park/Neutral Switch for 5 spd manual?...


Maybe you can argue about this, but please do a research before you say something like this..

Here is the part number again....
040614
25325-D4000
$27.99

 

The neutral/reverse position switch is on the transmission itself.

 

Yeah really? Do you have some documentation to support your statement? I did not know there was Neutral/Reverse position switch. Please show me some picture and document from Nissan.

 

Part number- 32005-17E11

That number has been superceded by 32005-17E12

 

Part number- 32005-17E11

That number has been superceded by 32005-17E12[/QUOTE]

OK thanks, that was a better answer and more accurate then saying I need to go change my wiring for this code.

I am getting a code for Park/Neutral, I think they are two diffrent switch for that. I could be wrong so i guess nissan sold me the wrong damn switch.

That's the backup light and Neutral switch. I guess there is park/neutral switch as well. Correct me if i am wrong.

oldngivout, sorry bro, but you are no help. Thanks for trying though.

 

Yea they gave you the wrong one. The one they gave you is the clutch pedal position switch. This is what allows you to start the car, deactivates cruise control, etc. Damn n00bs working behind the counter...

I'm guessing your reverse lights don't come on when you stick it in reverse, huh? That's basically the neutral/reverse position sensor's only function.

 

The park/neutral switch is for autos only.

 

No, the lights comes on, but I don't know what else could be wrong. I am doing my clutch soon, so i will have the tranny shop replace that as well.

Thanks for your help, I really appreciate it.

 

So Basically I am getting a Auto tranny code? can you verify that for me? p1706 is related to auto tranny?
what code should i get if that backup light / neutral position sensor is bad? Do you agree with others saying i have to change the whole wiring? Can you please advice? maybe I am wrong...

Thanks.

 

I understand you now. You have the 5-speed's reverse/neutral position switch hooked up so your reverse lights are working. Since you're still using the auto ECU it's looking for the signal from the auto's park/neutral position switch. I've read that disconnecting the TCM connector will eliminate all the auto-related codes but i'd need someone else to confirm that.

Edit: Disconnecting the TCM will eliminate the blinking O/D light upon startup, but the stored ECU codes will remain until you get a manual ECU.

 

did you pull the auto tranny computer? maybe im so tired that i cant think straight. sorry

 

where is that? isnt it by the ecu?

 

I actually bought a 99 SE 5sp manual ECU, I had to go to Nissan have them reprogram my keys, all of my Auto tranny codes went away after that, this is the only code that pops up once in a while. Since i change that switch, i did not get that code yet. I can not be sure if that code won't come back again. I like to get rid of it for good. I have the TCM disconnect for sure. I don't why this 5SPD ECU showing that code. When I had my auto ECU I was getting 5 different codes. Now I am only getting this one once in a while.

 

Ok now this really has me stumped. Why is a 5-speed ECU storing an auto code??

 

CystumMax where is the tcm? i should know this .

 

Right underneath the Stereo.

 

I have no idea, I am not sure why? So that code for sure is for auto? I also had IDLE problems with my auto ECU, after replacing it, it went away.

 

This is getting pretty confusing. Upon further research i've discovered that the ECU shares the same DTC for both the auto park/neutral position switch and the 5-speed reverse/neutral position switch. But, per the FSM, the possible causes for this code are:

1. The switch circuit is open or shorted
2. The switch is bad
3. The circuit between the TCM and ECU is open or shorted - Does not apply
4. The TCM itself is bad - Does not apply


WOOT!!! 4000th post!!!

 

I am sorry, It is getting a little late right now, and i am not understanding you. What would you recommend? I know for sure TCM is disconnected.. how can i fix this. Please advice. Should i just change that damn switch, and it would be all over??
By the way you have been a great help.

Thanks.