Should the car be on or running when I hook up the obd2 scanner? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Jstyle · 02-14-2021, 11:58 AM

Did a search and I can’t find the answer. Any help greatly appreciated.

LimitedSlip · 02-14-2021, 12:21 PM

Quote:

Originally Posted by Jstyle

Did a search and I can’t find the answer. Any help greatly appreciated.

I use either an Autel 319 or 519 OBD scanner. Both manuals say:

"CAUTION: Don’t connect or disconnect any test equipment with ignition on or engine running."

gen3v8 · 02-14-2021, 12:47 PM

+1^^^

ls1ac · 02-14-2021, 02:41 PM

After you hook it up put the car in ON but not running to read codes.

Jstyle · 02-14-2021, 06:38 PM

So my thought is, after I disco’d the battery to reset EVERYTHING yesterday, I’ll take it out for a spin tomorrow get it up to operating temps. Then I’ll turn the car off, connect the scanner, then put it in Run with out actually cranking it. That sound right?

soundman98 · 02-14-2021, 06:52 PM

if you disconnect the battery to reset everything, it resets all the system monitors as well. if you're attempting to chase a service engine light, some situations, that would clear the light.

don't disconnect the battery.

02-14-2021, 11:58 AM	#1
Jstyle Senior Member Join Date: Jan 2021 Drives: 2020 86 Location: North VA Posts: 183 Thanks: 39 Thanked 49 Times in 28 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Should the car be on or running when I hook up the obd2 scanner? Did a search and I can’t find the answer. Any help greatly appreciated.

02-14-2021, 12:47 PM	#3
gen3v8 Barred Join Date: Oct 2020 Drives: My18 wrxsti My19 brzts Location: Botany Bay Posts: 1,144 Thanks: 732 Thanked 1,188 Times in 610 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	+1^^^ __________________ Wait until my Flex capacitor hits 88

02-14-2021, 06:52 PM	#6
soundman98 ProCrastinationConsultant Join Date: Sep 2013 Drives: '14 Ranger, '18 Tacoma 4Dr LB Location: chicago-ish Posts: 11,330 Thanks: 35,240 Thanked 13,673 Times in 6,781 Posts Mentioned: 98 Post(s) Tagged: 0 Thread(s)	if you disconnect the battery to reset everything, it resets all the system monitors as well. if you're attempting to chase a service engine light, some situations, that would clear the light. don't disconnect the battery. __________________ "The time you enjoy wasting is not wasted time"

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
OBD2 scanner for monitoring oil pressure?	chipmunk	Engine, Exhaust, Transmission	7	10-06-2020 07:55 AM
Bluetooth OBD2 Scanner Question	FR-S2GT86	Software Tuning	5	04-15-2020 02:50 PM
3D Model Scanner	Bach415	Northern California	0	12-19-2017 03:38 AM
ACTRON OBDII scanner	BRZ-y	Electronics \| Audio \| NAV \| Infotainment	2	01-28-2016 05:37 PM
New 3D laser scanner and printer what to make?	SpeedR	Scion FR-S / Toyota 86 GT86 General Forum	69	06-11-2013 08:14 AM

02-14-2021, 06:38 PM	#5
Jstyle Senior Member Join Date: Jan 2021 Drives: 2020 86 Location: North VA Posts: 183 Thanks: 39 Thanked 49 Times in 28 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	So my thought is, after I disco’d the battery to reset EVERYTHING yesterday, I’ll take it out for a spin tomorrow get it up to operating temps. Then I’ll turn the car off, connect the scanner, then put it in Run with out actually cranking it. That sound right?

User Name		Remember Me?
Password