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Does the Model S have an OBD-II connector?

Reed

Member
Aug 31, 2013
53
3
CA Bay Area
Does the Model S have an OBD-II connector? If so, does it show any information that is different from ICE cars?

I thought ODB-II is required for all cars but the sub systems for electric are much different than an ICE vehicle.
 

jerry33

(S85-3/2/13 traded in) X LR: F2611##-3/27/20
Supporting Member
Mar 8, 2012
20,117
25,398
Texas
Yes it does. Note that ODBII connectors also connect with the CAN and the BEAN buses. The ODBII bus will have the applicable readouts and will tell the testing system it's an EV--although many places just put the VIN into their software and don't bother connecting the ODBII for EVs unless the VIN doesn't show up. The CAN bus is where all the interesting information is and that varies by car and by manufacturer.
 

Plug Me In

Member
Nov 29, 2012
597
25
Central Virginia
Interesting. Where is it located? I would have thought the Model S didn't have one since, by my understanding, OBD standard is more for emissions related issues rather than general diagnostics. In fact, my OBD II scanner is on my list of things to get rid of, along with my oil filter wrench, spark plug wrench, etc.
 

montgom626

Active Member
Dec 15, 2012
1,328
1
USA
I don't think it has one. I asked a Tesla Ranger and he told it does not have OBDII. It does have a connector on the driver side in the part of the dash next to the door. Pop the side panel off and you will find it.
 

ElSupreme

Model S 03182
Jan 13, 2012
4,303
104
Atlanta, GA
I don't think it has one. I asked a Tesla Ranger and he told it does not have OBDII. It does have a connector on the driver side in the part of the dash next to the door. Pop the side panel off and you will find it.


I am pretty sure all cars made now have to have an OBDII port. And they are required to be near the steering wheel. The one in the Model S is directly above the dead pedal, under the steering wheel, as shown in this picture.
WP_20130927_003.jpg
 

mknox

Well-Known Member
Aug 7, 2012
10,103
1,894
Toronto, ON
I don't think it has one. I asked a Tesla Ranger and he told it does not have OBDII. It does have a connector on the driver side in the part of the dash next to the door. Pop the side panel off and you will find it.

I heard (can't remember where) that earlier production cars didn't have the OBD II port but later ones do. I'll have to look and see if I have one...
 

AC1K

Member
Mar 18, 2013
473
28
Calgary Alberta Canada
thats weird... i thought the connector was the one under neath the touch screen (grab your cubby hole and pull STRAIGHT down)
 

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ElSupreme

Model S 03182
Jan 13, 2012
4,303
104
Atlanta, GA
From what I gather the OBDII is just there for regulatory purposes, and a minimum of information is put out to it. And there are other Tesla plugs where they really interface with the car's software.
 

AC1K

Member
Mar 18, 2013
473
28
Calgary Alberta Canada
From what I gather the OBDII is just there for regulatory purposes, and a minimum of information is put out to it. And there are other Tesla plugs where they really interface with the car's software.

i plugged in my BT ODB2 connector and i got no information out of it, the phone said it was able to connect to the adapter but not the ECU
 

lolachampcar

Well-Known Member
Nov 26, 2012
6,086
7,358
WPB Florida
First, what is a BEAN bus?
Second, that connector behind the far left side of the dash when the driver's door is opened is Ethernet :) They just plug MS into a laptop's enet port and start a talking....
 
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jrreno

Nothin' left to do but smile, smile, smile
Supporting Member
Jul 21, 2013
974
261
Sarasota , Florida
I have a Leaf and some developers have put together a droid app that works with a bluetooth OBD connector and provides individual cell voltages, tire pressure, temperature, VIN, charge cycles and more. I would be surprised if Tesla doesn't have a lot of information avaiable at this connector. As someone mentioned it is connected to the CAN bus.
 

swegman

Active Member
Mar 27, 2012
1,580
1,642
I was at the Rockville Service Center today and asked hem about it. I was told that the car has an OBDII connector because it is required by law. However, I was told that it does nothing; that the only pins connected to the connector are ground and voltage.
 

gmark2000

Member
Apr 13, 2014
12
0
Oakville, Ontario
I was at the Rockville Service Center today and asked hem about it. I was told that the car has an OBDII connector because it is required by law. However, I was told that it does nothing; that the only pins connected to the connector are ground and voltage.
I believe some insurance companies' tracking devices use the OBDII for power and monitoring.
 

zwede

2013 P85+
Jan 17, 2014
637
337
Plano, TX
I was at the Rockville Service Center today and asked hem about it. I was told that the car has an OBDII connector because it is required by law. However, I was told that it does nothing; that the only pins connected to the connector are ground and voltage.

I think this is correct. I connected my OBDII scan tool to it, and it powered up but could not communicate with the car.
 

DITB

Charged.hk co-founder
Nov 13, 2012
1,581
36
Hong Kong
I have an older ODB, and you guys talk of ODB II. Tried mine and it connects put asks me if I have the iglorious on or not. No data.
 

paco3791

TMC OG
Nov 10, 2006
366
7
Antioch, IL
I believe some insurance companies' tracking devices use the OBDII for power and monitoring.
they do but when I tried to use one on the car it wasn't able to get any info from the port. Mostly I believe insurance company device is looking for vehicle speed. I'm willing to bet that the report above of just voltage and ground being connected is correct.
 

markwj

Moderator, Asia Pacific
Apr 10, 2011
4,628
1,282
Hong Kong
thats weird... i thought the connector was the one under neath the touch screen (grab your cubby hole and pull STRAIGHT down)

That is the DIAG connector. Provides direct access to the multiple CAN buses in the car for service technicians. But, everything on those buses is Tesla proprietary.
 
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jerry33

(S85-3/2/13 traded in) X LR: F2611##-3/27/20
Supporting Member
Mar 8, 2012
20,117
25,398
Texas
That is the DIAG connector. Provides direct access to the multiple CAN buses in the car for service technicians. But, everything on those buses is Tesla proprietary.

Most of the interesting information on the Prius' ODBII connector is proprietary too. Some folks have spent a lot of time figuring out what the codes mean so that you can program your ScangaugeII to read them. However, it's also possible to brick your Prius if you do it wrong because it works by sending an inquiry to the CAN bus and getting an answer. I think I remember reading a clause in the Tesla purchase agreement where you agree not to do this.
 

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