Date Registered: 08-2012
Location: Sydney NSW
TOTAL POSTS: 9
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.
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
2012 series 5 ST 4x4 Manual
22/Aug/2012, 8:04 pm
Date Registered: 09-2012
TOTAL POSTS: 309
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.
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.]
Steering at rest.
Transmission hot (vehicle driven for 10 minutes).
Follow scan tool instructions to run IAVL.
Scan tool should show "Completed" within approx. 20 seconds.
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.
2011 ST Series IV 4x4 with CVT in Precision Grey
Cooper CS5s, Tinting, Towbar, Bonnet Protector.
Mods: Steering Wheel Lights, Bash Plates, DBA Slotted Rotors
4/Mar/2013, 10:25 am