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YoYo87 Profile
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Date Registered: 08-2012
Location: Sydney NSW
TOTAL POSTS: 9
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Re: ECU reset on T31


Copied & pasted from the DIY section:
Reset ECU without disconnecting the battery or pulling fuses

Did a quick forum search & couldn't find anything similar to this method.
I've been using this on my 2007 nissan skyline & have also done this on a 2006 350z so this method should work for most nissans 2006+ if not earlier.

Read the process a few times before you try to do this its ALL ABOUT TIMING:

1) Put the car in 'ON' mode (cars with intelligent key press the start button twice with foot off the brake to put car in on mode)

2) Within three seconds of the car "ON" (again NOT started), Floor (all the way down) and Release the accelerator pedal fully 5 times within 5 seconds.
Do not do this too fast.. 1..2..3..4..5

3) Wait 7 seconds then floor the accelerator pedal and hold for 10 seconds. After that 10 seconds the Check Engine Light will start to blink slowly.

4) Release the pedal and floor it down once again and hold for 10 seconds. After these 10 seconds the check engine light will disappear then begin to flash much more rapidly. After you have done the following turn the car off and then back on.

The ECU is now reset!!

Again, this reset is all about timing, if it does not work for you, try try again until it does!
I have included a video of this demonstrating the process, my car is a 2012 series 5 xtrail & as said earlier I have used the same method on other older nissan models.

Youtube link

Give it a try, I'd be interested to see if this works for the T30 as well
There are plenty of benefits & reasons you would want to reset the ECU which I will not go into detail on here, hopefully this makes it easier/quicker for you guys in future

Last edited by YoYo87, 27/May/2013, 1:41 am


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Jason X-2608
2012 series 5 ST 4x4 Manual
22/Aug/2012, 8:04 pm Link to this post   Blog
 
nickv1980 Profile
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Date Registered: 08-2012
TOTAL POSTS: 13
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Re: ECU reset on T31


Your the man YoYo i was sceptical at first but after watching your video im sold !

One thing ho did you find this out ? And are you 100% sure its re-setting the ecu and not doing something else ??
25/Aug/2012, 4:13 pm Link to this post Send Email PM   Send Private Message Blog
 
YoYo87 Profile
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Date Registered: 08-2012
Location: Sydney NSW
TOTAL POSTS: 9
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Re: ECU reset on T31


Found the procedure years ago in a factory service manual I downloaded for my other car (imported '07 nissan V36 skyline/infiniti g37 in the US).
http://www.g37-tech.com/wiki/Category:Service#Factory_Service_Manual

the flashing light is basically the signal from the ecu that it has been reset, my skyline also has things like average speed & fuel consumption displays which reset themselves every time I do this.
I'm sure the Ti model Xtrails with multi-function displays would do the same thing

it doesn't do anything like reset radio presets or custom menu settings etc, just resets the ecu



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Jason X-2608
2012 series 5 ST 4x4 Manual
25/Aug/2012, 10:17 pm Link to this post   Blog
 
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Date Registered: 09-2012
Location: Brisbane
TOTAL POSTS: 227
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Re:


Hi All,

I tried Jason's 'bum on seat' style ECU reset on my exy on the weekend. The only problem I has was the key needed to be 'ON' rather than 'ACC' (but the engine off)...noticed this when I checked the video.


I later stumbled across this on the InterWeb when I was looking for something else:


XTRAIL RELEARN PROCEDURE FOLLOWING THROTTLE CLEAN
Idle Air Volume Learn (IAVL)
The ECM learns the volume of intake air at idle.
This must be relearned whenever there is an idle concern or the Throttle Motor or Throttle Position Sensor or the ECM connectors have been removed or components replaced.
It should also be conducted when any changes have been made such as CLEANING the throttle valve.
IAVL can be conducted with a scan tool or manually.
Note!
To enable IAVL learning, the following conditions must exist:
Battery Voltage > 12.9 Volts.
Coolant MUST be between 70° C to 95° C - not too hot.
Park / Neutral Signal detected at ECM.
All electrical loads OFF.]
Vehicle stationary.
Steering at rest.
Transmission hot (vehicle driven for 10 minutes).

 
Scan Tool
Follow scan tool instructions to run IAVL.
Scan tool should show "Completed" within approx. 20 seconds.
 OR Manually
Note!
It is best to accurately time each step with a digital watch using the Elapsed Time scale on the chart.

1. Ignition must be OFF for at least 10 seconds.
2. Ensure accelerator is fully released.
3. Switch Ignition ON and wait for 3 seconds.
4. Repeat the following procedure quickly FIVE TIMES within 5 seconds:
- Fully depress accelerator.
- Release accelerator.
5. Wait 7 seconds, fully depress accelerator for approx 20 seconds until MIL stops flashing and stays ON.
6. Release accelerator within 3 seconds of the MIL staying ON.
7. Start engine and idle for at least 20 seconds.
8. Rev engine several times and re-check ignition timing and idle are correct.
9. IAVL should be complete and the engine idle should be normal.


I haven't tried this yet, but does anyone have any comments on the way this differs from Jason's version from point 5 onwards? It's similar but not quite the same.

Cheers,
Mark

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Mark (X-2639)
2011 ST Series IV 4x4 with CVT in Precision Grey
Tinting, Towbar, Bonnet Protector, Left Rear Drawer, Cargo Blind.
Mods: Steering Wheel Lights, Bash Plates, Night Breaker Headlights

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4/Mar/2013, 10:25 am Link to this post Send Email PM   Send Private Message Blog
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 26035
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Re:


H Mark,

The idle re-learn procedure is already documented on our forum and available as part of other DIY Guides. It is applicable to the T30 xtrail

Let's leave this thread for the subject of the ECU Re-set, as the 2 procedures are quite different.

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4/Mar/2013, 10:30 am Link to this post Send Private Message MSN Blog
 
mfeodoroff Profile
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Date Registered: 09-2012
Location: Brisbane
TOTAL POSTS: 227
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Re:


Thanks Jalal.

It's nice to know there IS a difference, so I won't bother with the one I stumbled on. I'm quite happy with my idle speeds already (and I have a pair of T31s) :-)

Cheers,
Mark

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Mark (X-2639)
2011 ST Series IV 4x4 with CVT in Precision Grey
Tinting, Towbar, Bonnet Protector, Left Rear Drawer, Cargo Blind.
Mods: Steering Wheel Lights, Bash Plates, Night Breaker Headlights

Image
4/Mar/2013, 10:43 am Link to this post Send Email PM   Send Private Message Blog
 
YoYo87 Profile
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Date Registered: 08-2012
Location: Sydney NSW
TOTAL POSTS: 9
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Re: Re:


quote:

mfeodoroff wrote:

Hi All,

I tried Jason's 'bum on seat' style ECU reset on my exy on the weekend. The only problem I has was the key needed to be 'ON' rather than 'ACC' (but the engine off)...noticed this when I checked the video.



Ahaha It must have slipped my mind & got the two jumbled when I posted that, thanks for pointing it out, I will try to edit my original post

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Jason X-2608
2012 series 5 ST 4x4 Manual
27/May/2013, 1:40 am Link to this post   Blog
 
MarcoXtrailT31 Profile
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Date Registered: 01-2013
TOTAL POSTS: 79
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Re:


hey guys,

Just done the ecu reset by pulling out the 20A fuse under the air pipe. Did it all as described in this thread......but how do I know if it has worked?

Everything looks the same on the dash.........I scrolled through all the settings with the 'i' on the steering wheel and everything is the same....?

Any ideas?

Cheers

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Mark - (X-2851)
Snow Storm Series V T31
2.0 Turbo Diesel DCi - 6 Spd Auto
2/Aug/2013, 8:35 pm Link to this post Send Email PM   Send Private Message Blog
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 26035
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Re:


The question is, why did you perform an ECU re-set? emoticon

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2/Aug/2013, 8:38 pm Link to this post Send Private Message MSN Blog
 
MarcoXtrailT31 Profile
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Date Registered: 01-2013
TOTAL POSTS: 79
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Re:


Hey Jalalski,

Got myself a K&N airfilter and was just doing a bit of reading on it. I stumbled across the K&N thread and followed it all the way through to the ECU reset thread emoticon

nowhere along the way tho did it say how you can tell if it was successful?

Cheers

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Mark - (X-2851)
Snow Storm Series V T31
2.0 Turbo Diesel DCi - 6 Spd Auto
2/Aug/2013, 9:14 pm Link to this post Send Email PM   Send Private Message Blog
 


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