OBD reader problem

jpit · 05-08-2009, 02:11 PM

I have a program on my computer (Laplogger) that reads and can reset OBDs. It will read my wife's Toyota but says it cannot connect with the 370z's ecu. Are Nissan's ecus different from other manufacturers? Thanks for any help.

wstar · 05-08-2009, 02:22 PM

Quote:

Originally Posted by jpit

I have a program on my computer (Laplogger) that reads and can reset OBDs. It will read my wife's Toyota but says it cannot connect with the 370z's ecu. Are Nissan's ecus different from other manufacturers? Thanks for any help.

Well, many newer ECUs use CAN (Car Area Network), which is an upgraded protocol from the original OBD-II, and this includes our 370Z. However, I was under the impression that they're backwards compatible for all of the basic stuff (like reading and clearing OBD-II codes). When I go out for some food in a few, I'll try my older ScanGauge on my Z, I'm sure it knows nothing about CAN.

Modshack · 05-08-2009, 02:25 PM

Quote:

Originally Posted by wstar

Well, many newer ECUs use CAN (Car Area Network), which is an upgraded protocol from the original OBD-II, and this includes our 370Z. However, I was under the impression that they're backwards compatible for all of the basic stuff (like reading and clearing OBD-II codes). When I go out for some food in a few, I'll try my older ScanGauge on my Z, I'm sure it knows nothing about CAN.

Yeah...Good possibility you'll need a CAN compatible reader. I use a Scangauge which provides instrumentation (4 data points at once) as well as code reading and clearing and is CAN compatible. You can kill several birds with one purchase on this one.. Having Water temps, intake temps, fuel trim up etc. is informative..

wstar · 05-08-2009, 02:35 PM

Quote:

Originally Posted by Modshack

Yeah...Good possibility you'll need a CAN compatible reader. I use a Scangauge which provides instrumentation (4 data points at once) as well as code reading and clearing and is CAN compatible. You can kill several birds with this one..

Yeah I use a little hand-held unit that's CAN-compatible, but I also have the earlier version of your ScanGauge, before they put the 'II' on the name, which I don't think does CAN. We'll see shortly.

wstar · 05-08-2009, 04:11 PM

Ok, just got back from my drive with the ScanGauge (old model). Apparently the old ScanGauge does support CAN, just not as automatically. With the default (autodetect) setting, it was not able to communicate with the car (and worse, whatever it does for autodetection shuts off my VDC, and it won't come back on until I turn the car off and on again, kinda like what happens with bad sensor inputs).

However, deeper in the setup you can manually force which protocol to speak to the car with. There's a huge list of them, with names like PWM, KPW, ISO, CANSF, CANLF, CANSS, CANLS, etc.. The only one that worked was CANSF. If I put the old ScanGauge into that mode (then turned the car off and back on again to clear up VDC), it worked fine. No other mode worked at all. So yeah, likely your scan tool just doesn't support the newer protocols.

Modshack · 05-08-2009, 04:24 PM

/\ WSF...CAN SF is also the mode mine is in....so apparently this feature set is the same on the early and later scan gauges..

ZeN · 11-13-2011, 10:36 AM

Brought my car to the Nissan service center, they plug in their Consult bluetooth (damn big) trying to enable PID reading for Asia region, fail. The consult software that they use cant change any parameter on the ECU. Can someone with Uprev Osiris confirmed if this feature can/can not be turned on by reflashing.

DarkZide · 11-13-2011, 04:44 PM

99 QX4. It connects to the Z but then immediately drops it. Pisses me off.

ZeN · 12-25-2011, 07:37 AM

Any solution to this PID poll issue for JDM 370z yet ? I wonder if it would make any different if i were to buy PLX KIWI. Just dont wanna waste 99 dollar + shipping knowing that it might not work. Can somebody other than US/EU 370z confirm that PLX KIWI really works.

370z_2910 · 01-08-2012, 05:03 AM

I have plx devices and unable to read my z.

I just found out that my z obd is lock.

Any updates how to unlock it.

happytheman · 01-08-2012, 01:19 PM

O wow, really? This is the first I've heard of an OBDII port being locked. I have thought about picking up the PLX Kiwi. In for more info.

O&G · 01-08-2012, 01:25 PM

ISO-CAN is the setting I have to put my Greddy Infometer on. Here is a chart of various makes/models and what you can read from the OBDII port. http://www.greddy.com/upload/file/info-touch-part2.pdf

ZeN · 03-01-2012, 09:12 PM

Looks like there's no solution to this lock on obd2, i wonder if its just a on/off switch on our ecu

ummie4 · 08-22-2012, 09:14 AM

How to read the engine codes without a Nissan CONSULT or scan tool. (Set ECM in Diagnostic Test Mode II)

1
Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.
2
Repeat the following procedure quickly five times within 5 seconds.
a
Fully depress the accelerator pedal.
b
Fully release the accelerator pedal.
3
Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the MIL starts blinking.
4
Fully release the accelerator pedal.
5
ECM has entered to Diagnostic Test Mode II (Self-diagnostic results).

Read more: Nissan Vehicles Engine OBDII Codes Read Without Nissan CONSULT or Scan Tool | Nissanhelp.com

I could not get this to work on mine however.....

05-08-2009, 02:11 PM	#1 (permalink)
jpit Enthusiast Member Join Date: Feb 2009 Location: Washington State Posts: 440 Drives: 370Z Tour MT w/Spt Rep Power: 17	OBD reader problem I have a program on my computer (Laplogger) that reads and can reset OBDs. It will read my wife's Toyota but says it cannot connect with the 370z's ecu. Are Nissan's ecus different from other manufacturers? Thanks for any help.

05-08-2009, 04:11 PM	#5 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3595	Ok, just got back from my drive with the ScanGauge (old model). Apparently the old ScanGauge does support CAN, just not as automatically. With the default (autodetect) setting, it was not able to communicate with the car (and worse, whatever it does for autodetection shuts off my VDC, and it won't come back on until I turn the car off and on again, kinda like what happens with bad sensor inputs). However, deeper in the setup you can manually force which protocol to speak to the car with. There's a huge list of them, with names like PWM, KPW, ISO, CANSF, CANLF, CANSS, CANLS, etc.. The only one that worked was CANSF. If I put the old ScanGauge into that mode (then turned the car off and back on again to clear up VDC), it worked fine. No other mode worked at all. So yeah, likely your scan tool just doesn't support the newer protocols. __________________ 7AT Track Car! Journal thread / Car setup details

05-08-2009, 04:24 PM	#6 (permalink)
Modshack A True Z Fanatic Join Date: Mar 2009 Location: Greenville NC Posts: 2,883 Drives: 370Z Sport Rep Power: 977	/\ WSF...CAN SF is also the mode mine is in....so apparently this feature set is the same on the early and later scan gauges.. __________________ Steal my car! (SOLD)...Now Porsche Cayman S Oil Cooler DIY: Here!

01-08-2012, 01:19 PM	#11 (permalink)
happytheman A True Z Fanatic Join Date: Apr 2010 Location: Florida Posts: 10,737 Drives: MB 6M Tour/Sport Z34 Rep Power: 1823	O wow, really? This is the first I've heard of an OBDII port being locked. I have thought about picking up the PLX Kiwi. In for more info. __________________ --Brantly-- *PowderCoating by Mike/Stillen/PWJDM/Shine Auto/NST* GTR/Michelin /Fast Intentions/Evo-R/Mobil 1/Motul/Z1 https://facebook.com/CentralFloridaZClub

01-08-2012, 01:25 PM	#12 (permalink)
O&G A True Z Fanatic Join Date: Nov 2010 Location: Lone Star State Age: 42 Posts: 1,212 Drives: 40th Anv. Rep Power: 23	ISO-CAN is the setting I have to put my Greddy Infometer on. Here is a chart of various makes/models and what you can read from the OBDII port. http://www.greddy.com/upload/file/info-touch-part2.pdf __________________ O&G's Build/Journal <---(1st lowmount single turbo treeseventy) Built Engine Thread 2011 F-250 Build/Journal

11-13-2011, 10:36 AM	#7 (permalink)
ZeN Base Member Join Date: Apr 2011 Location: Malaysia Posts: 116 Drives: 09 PW 7AT 370z Rep Power: 15	Brought my car to the Nissan service center, they plug in their Consult bluetooth (damn big) trying to enable PID reading for Asia region, fail. The consult software that they use cant change any parameter on the ECU. Can someone with Uprev Osiris confirmed if this feature can/can not be turned on by reflashing.

11-13-2011, 04:44 PM	#8 (permalink)
DarkZide Enthusiast Member Join Date: May 2010 Location: TN Posts: 291 Drives: 2010 370z BC M6 Rep Power: 16	99 QX4. It connects to the Z but then immediately drops it. Pisses me off.

12-25-2011, 07:37 AM	#9 (permalink)
ZeN Base Member Join Date: Apr 2011 Location: Malaysia Posts: 116 Drives: 09 PW 7AT 370z Rep Power: 15	Any solution to this PID poll issue for JDM 370z yet ? I wonder if it would make any different if i were to buy PLX KIWI. Just dont wanna waste 99 dollar + shipping knowing that it might not work. Can somebody other than US/EU 370z confirm that PLX KIWI really works.

01-08-2012, 05:03 AM	#10 (permalink)
370z_2910 Base Member Join Date: Sep 2009 Location: BRUNEI Posts: 127 Drives: 370Z Rep Power: 16	I have plx devices and unable to read my z. I just found out that my z obd is lock. Any updates how to unlock it.

03-01-2012, 09:12 PM	#13 (permalink)
ZeN Base Member Join Date: Apr 2011 Location: Malaysia Posts: 116 Drives: 09 PW 7AT 370z Rep Power: 15	Looks like there's no solution to this lock on obd2, i wonder if its just a on/off switch on our ecu

08-22-2012, 09:14 AM	#14 (permalink)
ummie4 Base Member Join Date: May 2010 Location: Hershey, PA Posts: 39 Drives: 09 Fairlady Touring Rep Power: 16	How to read the engine codes without a Nissan CONSULT or scan tool. (Set ECM in Diagnostic Test Mode II) 1 Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds. 2 Repeat the following procedure quickly five times within 5 seconds. a Fully depress the accelerator pedal. b Fully release the accelerator pedal. 3 Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the MIL starts blinking. 4 Fully release the accelerator pedal. 5 ECM has entered to Diagnostic Test Mode II (Self-diagnostic results). Read more: Nissan Vehicles Engine OBDII Codes Read Without Nissan CONSULT or Scan Tool \| Nissanhelp.com I could not get this to work on mine however.....

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
does everyone have this problem?	mattkim85	Nissan 370Z General Discussions	43	11-14-2009 08:37 PM
Bird Sh*t problem!!!! HELP!!!	zcoupe09	Exterior & Interior	67	10-04-2009 03:39 PM
HELP with bird sh*t problem!!!	zcoupe09	Nissan 370Z General Discussions	0	04-26-2009 11:19 AM
First Drive = One Problem	dedede	Nissan 370Z General Discussions	14	12-31-2008 08:13 PM
First potential problem?	xDIEGOx	Nissan 370Z General Discussions	26	12-15-2008 11:30 AM