Diagnostic Port Index

[Krash]

There is great technical information on the diagnostic port (TDC - Tesla Diagnostic Connector) in the forum but as I found it difficult to find in the different threads, I started an index. Please comment with corrections or additions.

Why access it?

To access more, more granular and higher frequency car diagnostic information that can be obtained by the apps that use the online Tesla APIs. Motor torque for example. Or battery temperatures. This is especially true now that the Model 3 APIs are limited and now that all API GPS data is per second rather than per quarter second.​

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Where is it?

On the original roadster?​

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On the new roadster?​

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On the S and X between the front screen and the cubby. Pull the front of the cubby down to access. Don't pull the cubby out (just down) on the older cars or it is hard to reinstall. The ODB2 port under the left dash carries little or no CANBus data.​

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On the Model 3 there is a white 5 pin connector underneath the left dashboard. (Will it still be located on the left for right hand drive cars?) This port is either encrypted or locked. The most easily accessible location for diagnostics appears to be inside the rear panel of the center cubby as documented by FleetCarma here. A bridge connector fits in between two current connectors and taps the CANBus to make an OBD2 port.​

Change in Connector

The S and X connector changed physical connectors on Sept 2015. (What approximate VIN is that?)​

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If the Model 3 front connector is the connector previously mentioned, Jack Rickard believes that connector runs BroadR-Reach Ethernet physical layer over unshielded single twisted pair cable at 33.3 Mbps with the CAN data hidden inside. But that port does not light up the RAD-Moon BroadR switch and some insiders report it is not BroadR, but rather encrypted and/or locked CAN. JWardell confirms that the signal from this wire does not look like CANBus signals on the S\X.​

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The Model 3 center console back connector (to be bridged) changed between 2018 and 2019.​

Is it software locked or encrypted?

Original Roadsters are all accessible. Model S/X cars built prior to spring 2018 (MCU1/CID1) are also currently accessible as of late 2018 firmware v9.​

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The Model 3 front diagnostic port appears to be locked or encrypted. Also, Tesla stopped supporting the Model 3 performance data in the online API prior to the AWD release, hence the difficulty in obtaining performance data better than crude dynamometer readings.​

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But we see Model 3 cars are now using Teslamate. So is the API working again? Only at low frequency? Has anyone used it with PowerTools or Dashboard on a 3 or Y recently?​

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The Model 3/Y rear console connector area that can be bridged/tapped is not locked or encrypted.​

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Also, Model S/X cars built after spring 2018 (MCU2/CID2) have not locked or encrypedt the port like the Model 3 front.​

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HARDWARE
Adapter Cables

Sellers​

in US​

Chris TX​

S/X Both Old and New Available​

Maxwelltech​

S/X Old​

S/X New​

Model 3 Cubby FleetCarma Tesla Model 3 Vehicle Interface Cable (May not be available separately from FleetCarma C2 device​

Model 3 Center Console rear​

2018 Tesla Model 3 Adapter (2018) – HRN-CT20T1​

2019 Tesla Model 3 Adapter (2019) – HRN-CT20T11​

Roadster Fasttech Roadster​

in Norway: petersv​

Adapter Pinout

The community is creating the standard, several groups are using a four wire connector, but garygid is also using this more advanced ten wire pinout.​

New style diagrams​

Let the hacking begin... (Model S parts on the bench)​

x437a diag connector pinout for Tesla Model S​

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Diagnostic Connector and Housing Part Numbers

Connector​

Roadster and pre Sept 15 S​

Male Connector​

Mouser: AMP 173851-2​

Male Connector Pins​

Mouser: AMP 173630-1 (minimum 4000)​

Mouser: AMP 173630-6 (minimum 1000, Is this the same as -1?)​

Online Components via Octopart​

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Model X and post Sept 15 S​

Female Connector​

Sumitomo 6098-5622 - 自動車用部品:Sumitomo Wiring Systems, Ltd​

Sellers​

The Plug Dealer (White) - Listed as $4.45 in stock​

The Plug Dealer (Blue)​

Unresponsive to minimum order quantity and spec sheet request​

Q Components | Part Search​

Quoted 115 minimum order quantity at $1.75 USD on 25 September 2017​

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Female Connector Pins​

0.64mm minimum two, maximum sixteen per connector​

8240-0182, 8240-0338, 8100-3624, 8100-3628, 8100-3625, 8100-3629​

Seller​

The Plug Dealer part 6874 - $0.34 USD - Tin​

The Plug Dealer part 6875 - $1.58 USD - Gold​

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1.5mm minimum two, maximum four per connector​

8240-0279, 8240-0215, 8240-0213, 8240-0214, 8240-0339​

Seller - The Plug Dealer part 5597 - $0.30 - Tin​

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Model 3​

Exposed Under Dash Connector - Assumed software locked​

Sumitomo 6098-3810 TS series​

自動車用部品:Sumitomo Wiring Systems, Ltd​

Female Connector​

6098-3810 $4 (2 unit minimum) $10 shipping​

Female Pins for Female Connector​

1.5mm x 15mm​

8100-3625 $0.25 (50 minimum) $10 shipping​

8240-0182, 8240-0338, 8100-3624, 8100-3628 (also listed, difference?)​

(pre Jan 2019) Hidden Rear Console CANBus tap point splice​

Female Housing​

6098-5622 TS series 20 way​

Female Pins​

8100-3624 TS series female pin 0.22-0.35mm2 wire (need 16)​

8240-0214 TS series female pin 2.0mm2 wire (need 4)​

Male Housing​

6098-5613 TS series 20 way male housing​

Male Pins​

8100-3622 TS series male pin 0.22-0.35mm2 wire (need 16)​

8230-4923 TS series male pin 2.0mm2 wire (need 4)​

unverified and hard to source​

Vehicle Housing Part Numbers​

Roadster and pre Sept 15 S - Tesla Part X437​

Female Housing​

Mouser: AMP 174933-1​

Female Housing Pins​

Mouser: AMP 173645-1 (minimum 3000)​

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Model X and post Sept 15 S - Tesla Part X437A​

Male Housing​

Sumitomo 6098-5613 (Sumitomo listed pair for 6098-5622)​

Sumitomo 6098-5620 (service.teslamotors.com listed)​

Sumitomo 6098-5629 (appleguru referenced part)​

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Male Housing Pins​

Sumitomo 8100-3622 (0.64mm (025))​

Seller​

The Plug Dealer part 6872 - $0.21 USD - Tin​

The Plug Dealer part 5949 - $0.32 USD - Gold​

Sumitomo 8230-4923 (1.5mm (060))​

Seller - The Plug Dealer - no stock​

Model 3​

Exposed Under Dash Connector - Assumed software locked​

Male Housing​

Sumitomo 6098-3802 TS series​

自動車用部品:Sumitomo Wiring Systems, Ltd​

Male Housing Pins​

0.64mm x 22.3mm​

8230-4878, 8230-5136, 8100-3622, 8100-3626 (difference?)​

Hidden Rear Console CANBus tap point splice (see connectors above)​

ELM ODB2 Modules

Bluetooth LE​

LELink Bluetooth Low Energy Car Diagnostic Tool​

Bluetooth​

OBDLinkMX​

ELM ODB2 Module Alternatives

apacheguy Raspberry Pi​

Obrien28 Beaglebone Black​

CANtact​

EvTV​

Due CAN Muticontroller Adapter​

Tesla Model 3 OBDII Adapter​

Tesla Model 3 CAN Monitor​

Tesla EDR Kit - Crash Data Group​

TPEAK​

Hardware: PEAK-System (TPEAK not specifically listed)​

TIV-144: In-vehicle cable for Tesla Model S and Model X​

TIV-145: In-vehicle cable for Tesla Model S (legacy)​

TIV-996: In-vehicle cable for Tesla Model 3​

appleguru and Kalud Custom USB and WiFi Controller​

uses comma.ai Panda​

Gesteur Arduino UNO and MCP2515​

FleetCarma C2​

Macchina M2​

CANserver​

Connector Alternatives

CANCrocodile​

BroadR (OABR related to 100Base-T1), unconfirmed diagnostics protocol for Model 3, confirmed connector for S/X tuner2

BroadR-Reach | MikroElektronika ($70 but requires embedded platform)​

FibreCode - USB OABR/BroadR-Reach/100Base-T1 Stick Raw ($200 USB for Windows and Linux)​

RAD-Moon ($350 converter to Ethernet)​

Mach Systems 100BASE-T1 (BroadR-Reach) Media Converter ($300)​

Mach Systems 100BASE-T1 (BroadR-Reach) USB Interface ($300)​

Technica Engineering 100Base-T1 Mediaconverter​

Technica Engineering 1000base-T1 Mediaconverter​

Technica Engineering 1000base-T1 SFP module​

b-plus NETLion 1000​

dSPACE MicroAutoBox, PCIe BroadR ethernet cards and other products.​

see TPEAK above​

SOFTWARE

TM-Spy​

iOS​

Android​

Data​

Scan My Tesla​

Android​

TESLax​

iOS​

garygid Can-Do​

SavvyCAN for Tesla Model S​

appleguru/panda on GitHub​

CANBus Explorer for iOS​

Bit Zero Digital Tesla Performance Tools (TPT) for iOS​

CANBus DBC Files and Similar

Model 3​

JWardell​

Brianman​

Model S/X​

Brianman​

main​

RWD additions​

AWD additions​

Amund7​

CANBus Analyzer Code​

Model Y​

Unanswered Questions

Can multiple diagnostic connectors be used at the same time on a splitter? If so which?​

How long of an extension and\or splitter can be used reliably?​

Will Tesla disable the diagnostic port like they disabled the collocated Ethernet port?​

Are Model 3 and Model Y similar?​

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Sources and other Relevant Threads

Diagnostic port (original roadster)​

How to Access Tesla Diagnostic Port behind Infotainment​

Exploring the Tesla Model S CAN Bus (updated Nov 2015)​

Chassis CAN Logging To ASCII Text Plus Graphing​

Logging Multiple CAN Buses to PC with my CAN-Do Program​

Chassis CAN Logging To ASCII Text Plus Graphing​

Undocumented | TeslaTap (see Bus Systems)​

http://prd.sws.co.jp/components/series/pdf/en/1705components_je.pdf​

https://edr.tesla.com/guides/model-s-edr-retrieval-guide.pdf (pages 2-4 for diagnostic port access)​

Connector Information – Autopilot Unit – Analytic.lol

Model 3 Specific​

Five Pin Port Photo​

Diagnostic Port and Data Access​

Vendor - MPP Model 3 Build Thread​

Diagnostic Port and Data Access​

 

[petersv]

Great writeup

 

[lunitiks]

Yes totally awesome. If I could nitpick: The real diagnostic port is actually the smaller Roseberger connector next to the chunky CAN port. Well, I guess theyre both diag

 

[MichaelS]

Thank you for putting all that great information together.

 

[Solarman004]

This should be a sticky note in both the S and X sections.
Great work.

 

[petergrub]

Can multiple diagnostic connectors be used at the same time on a splitter? If so which?

I assume you are referring to the CAN buses on the the diagnostic connector. You can build a 4-way breakout cable that Tesla uses on the Roadsters and for the early Model Ss too.

It connects to the diagnostic connector and splits the four buses out to separate DB9 connectors.

How long of an extension and\or splitter can be used reliably?

Per the information at this National Instruments link, and information from several other websites, the maximum length should not exceed about .3m or 1ft. I regularly use a breakout cable about 2ft in length without issues. I also didn't take into account the length of the tee'd off section of wiring form the behind the cable. The Roadster diagnostic cable directly splices into the CAN bus cables, while the Model S and X tee from behind the center display.

 

[Martin J]

Can you get power from the ODB port ? 2015 S85 RHD

 

[petergrub]

Can you get power from the ODB port ? 2015 S85 RHD

Yes, but keep in mind that it's fused for 5A

 

[Martin J]

Yes, but keep in mind that it's fused for 5A

Thank you for the response Peter. Do you know if you can get 12 volts from it?
Appreciate your help.

 

[petergrub]

Thank you for the response Peter. Do you know if you can get 12 volts from it?
Appreciate your help.

Yes. I measured 12V between pins 1 and 20 while the vehicle was in standby.

 

[GregRF]

For the Model 3 @MountainPass mentioned a twisted pair cable under the dash. I'm not sure what he is using to connect but maybe a CAN sniffer like CAN Crocodile could work?

 

[petergrub]

For the Model 3 @MountainPass mentioned a twisted pair cable under the dash. I'm not sure what he is using to connect but maybe a CAN sniffer like CAN Crocodile could work?

You're better off getting a PEAK PCAN-USB or similar CAN-USB interface dongle and accompanying software like PCAN Explorer or CANtrace. You could also use the free software, but it's quite limited in terms of logging and decoding frames.

Decoding CAN frames is not a trivial task.

 

[Krash]

For the Model 3 @MountainPass mentioned a twisted pair cable under the dash. I'm not sure what he is using to connect but maybe a CAN sniffer like CAN Crocodile could work?

If it really is BroadR-Reach Ethernet physical layer over unshielded single twisted pair cable at 33.3 Mbps with the CAN data hidden inside, there may be not be CAN wires to sniff. You may have to decode CAN from something else.

 

[petersv]

If I had more time, I would try Comma.ai's Panda: panda OBD-II Dongle

It's probably the most capable device at that price point. They have some nice software as well for messages debugging.

 

[appleguru]

If I had more time, I would try Comma.ai's Panda: panda OBD-II Dongle

It's probably the most capable device at that price point. They have some nice software as well for messages debugging.

I use the panda on the model s; works very well! I have been slowly decoding some of the messages; lots on the model s at least are actually common between Tesla and other cars (many CAN components are “off the shelf”).

 

[petersv]

I use the panda on the model s; works very well! I have been slowly decoding some of the messages; lots on the model s at least are actually common between Tesla and other cars (many CAN components are “off the shelf”).

Cool, do you have your findings somwhere I can take a look, github etc.?

 

[petersv]

Here you can get the pins in 100 quantity: Find Electronic Components | Mouser Norway

 

[appleguru]

Cool, do you have your findings somwhere I can take a look, github etc.?

appleguru/panda

 

[emir-t]

Anyone still selling these for someone in Europe? I tried contacting everyone but the guy on Panjo gave me a refund and I can't get any replies to e-mails.

 

[petersv]

I have some old style cables, and parts for the new sumitomo type.