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Where is my OBDII connector port on my Audi A3 2001?

I can't seem to find the OBDII connection port.

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It is drivers side, bottom of dash board, near your bonnet release catch, The connector sticks out from the plastic.

Posted on Jan 22, 2013


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Hi it is below the steering wheel above the cubby hole behind a flap

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SOURCE: where is OBDII connector

Should be under the dash on the drivers side. I hope this helps.

Posted on Mar 15, 2010

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SOURCE: How to use U585 OBDII EOBD CAN Code ScannerOBD2 Reader for VW AUDI

Just plug it in and turn the key to run.

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Where is the obd port located

All cars manufactured for sale in the US since 1996 have an OBDII diagnostic port as mandated by federal law. This connector must be within 3 feet of the steering wheel and must not require tools to access.
The port can be black or white. This is an example of what it looks like:
Normally, this port is located just under the dashboard above the gas or brake pedal. It can normally be located by simply looking under the dashboard or running your hand along the bottom edge of the dashboard until you "bump" into the connector.
Here are some examples of where your port may be located:
2005_nissan_xterra_obd_connector.jpg 16923d1121331241-1998-jeep-grand-cherokee-uk-obd-connector.jpg
There are other instances where the connector is behind a cover panel to make its appearance more appealing. In these cases it's necessary to open that panel to gain access to the OBDII port.
Here are some examples of it behind a cover:
1559522959_099ca76cf7.jpg 2005_infiniti_g_coupe_obd_connector.jpg
More information on finding your OBDII connector can be found here

Oct 17, 2015 | Cars & Trucks

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Audi Concert problem

you must check wiring cable of left speaker-reconnect antenna cable and check if it is firmly connected and apply contact cleaner over faders.

May 18, 2008 | 1999 Audi A4

1 Answer

Where is the vsc switch on a 04 4runner?

If you suddenly have the "VSC TRAC" and "VSC OFF" lights in your dash, this post may help you fix the problem yourself. The information here applies to 4th gen 4Runners that use the ISO protocol rather than the newer CAN protocol for their OBDII interfaces to code readers, ECU programmers, hand-held testers, etc. The OBDII interface includes several different protocols (methods of digital communication) and they all use the same physical connector, though with some different pins. The connector is located at the bottom of the dash on the driver's side and in the 4Runner it's covered by a small black cap.

4Runners switched from ISO to CAN around 2005 though this information may also apply to newer 4Runners with some modification. That is, newer 4Runners may display trouble codes and reset sensor calibration values in response to the connection of different (than earlier 4Runners) pins together than the ones described below.

Several posters have discussed similar problems, described in several different threads. I'm reluctantly starting a new one, with a more specific title (including the exact name of the two trouble indicator lights), in the hope that searchers will more easily find a solution.

The specific behavior: On startup, the "VSC TRAC" and "VSC OFF" lights come on and stay on. The ABS light may or may not come on. On subsequent starts the lights will come on temporarily as usual (as a bulb check) and then go off. They come on again and stay on as soon as the 4Runner is moved. The "check engine" light does not come on. This behavior begins after the vehicle has been hooked to some sort of OBDII code reader or engine tester or data logger, etc. Though the lights are on, no standard OBDII problem codes are detected by a regular code reader.

Cause: The code reader or other OBDII device has attempted to communicate with the 4Runner using the CAN protocol (involving pin #14) and this has caused the 4Runner to erase the "zero point calibration" numbers in its memory. Without these numbers it can't get accurate information from the yaw rate and deceleration sensors (in the center console near the gearshift) and so it disables traction and stability control functions.

The fix: Perform the "zero point calibration" procedure as described in TSB BR001-04. This procedure can be performed without special equipment such as a hand-held tester or OBDII reader. You only need the equivalent of a jumper wire to short together two pins of the OBDII connector at the right time and the right number of times between switching the 4Runner on and off. More detail is included below, leveraged from my other posts.

Why this doesn't happen every time a code reader is used: The code readers usually use the pins and protocol of the OBDII connector in a specific sequence, trying first to establish communication with the vehicle using the oldest protocol. They then try the pins and protocol of newer protocol standards. Usually the code reader would be successful in its first try at establishing contact with the 4Runner using the ISO 9141-2 protocol, and there would be no problem. However these communications schemes are not foolproof and occasionally the ISO protocol attempt fails. Then the code reader tries newer protocols including CAN (controller area network). It's this CAN attempt, which toggles pin #14 (the CAN data pin) that accidentally tells the 4Runner to erase the existing zero point calibration data. Since the 4Runner (this vintage anyway) can't communicate by CAN protocol the tester re-tries the older protocols again and eventually succeeds in setting up communication by the right ISO protocol. But by then the calibration data has been erased.

The calibration, by the way, is simply a matter of telling the 4Runner VSC/TRAC computer "your yaw rate and deceleration rate are currently zero" and to save the associated values. Then the output from the sensors can be interpreted correctly.

Detail (may be helpful if you're going to do the calibration procedure yourself): The SST (special service tool #09843-18040) specified in the service manual appears to be essentially a Y-shaped test lead and is variously called a "jumper wire" or "diagnostic check wire." It's used in this case to repeatedly connect and disconnect the chassis ground (CG, pin #4) and Ts (pin #14) terminals of the OBDII connector (referred to as DLC3 in Toyota-speak). The connection/disconnection sequence and timing are described in the service manual and in several TSBs. OBDII connector diagram and pin descriptions are in TSB BR005-03.

Since the OBDII connector is at the lower edge of the dash and pointing down (right above your left foot when you're sitting in the driver's seat) it's rather tough to reach in and do the shorting to the appropriate terminals of the OBDII connector with a test lead. Especially since you're supposed to avoid moving or shaking the vehicle when you're doing this. BTW, the OBDII connector usually has a black snap-on cover over it to keep out grit, etc.

Therefore I took a couple of pieces of insulated wire about 24" long each and taped them alongside each other, and stripped both ends. To make the wire fit securely in the (female) terminals of the OBDII connector I soldered a 3/8" length of metal (cut from a heavy paper clip) to one end of each of the wires. I chose a pin size so that would fit securely in the female terminals of the OBDII connector but wouldn't distort them. I used some heat shrink tubing around the solder joint to reduce any chance of accidental shorting.

After plugging the two pins into the OBDII connector (with the other ends held apart) I was able to hold the other ends of the two wires in my hands and touch them together at the appropriate times to connect the pins of the OBDII connector. I had a helper in the passenger seat to read the instructions from the TSB to me in sequence.

This is not very hard to do, and one need only be careful. It's easier to do with the Toyota OBDII tester, of course, and would only take 5 minutes. You might be able to get your dealer to do it gratis, but you might also be charged some minimum labor hour rate.

BTW #1: Doing the sulfur TSB or others that require the replacement or reprogramming of the engine computer or the VSC computer will also require this calibration.

BTW #2: I verified that when the lights are on the VSC and traction control are indeed inoperative. ABS is working, though.

BTW #3: Shorting other pins (such as #13 Tc) at the right time can cause the appropriate dash indicators to blink in sequence to reveal trouble codes other than the OBDII ones. A generic OBDII code reader won't give you this data, and you need the service manual (physical or online) to make sense of it. I believe there is a specific code to tell you that the zero point calibration data has been lost, but I didn't look for it.

BTW #4: In the 4Runner of this vintage the OBDII connector pins populated are 4, 5, 7, 9, 13, 14, 15, 16

Dec 19, 2011 | 2004 Toyota 4Runner

1 Answer

Just bought a 2003 Audi A3, the engine light has come on, any idea what this could be for?

First of all you need to access the Engine Control Module (ECM) using suitable diagnostic equipment connected to the data link connector of the car, in order to pull out all DTC's memored. DTC = Diagnostic Trouble Code. Then you will bu full informed about the root cause of the problem, and you will be able to repair & replace bad pieces and reset the ECM. Then the engine light & EPC (Electronic Pedal Control) yellow light will turn OFF.

The check engine light:

The check engine light & EPC light:

Sep 22, 2011 | Audi A3 Cars & Trucks

1 Answer

2010 audi q7 shows on the board service 700km 30 days. what does it mean? what service is it?

It's the normal car service reminder due. Whichever will be reached first: 700 km, or 30 days. In other words after 700 km, or if you don't drive the car 700 km within 30 days, you should carry out the car maintenace: engine oil & oil filter, air filter, fuel filter, pollen & dust cabin filter, ...
Then you will need to reset the "Service due" message on the dashboard. For Audi Q7 made year 2010, the Service Interval Indicator can only be reset with the VAS 5051 or similar diagnostic tool connected to the data link connector of the car.

Jun 30, 2011 | 2010 Audi Q7

1 Answer

How to read codes on obd1

First check to see if there isn't a OBDII port under the dash. A LOT of '95 model vehicles came with both the OBDI and OBDII hookups. If it doesn't have an OBDII port, then you're going to have to find someone who has a scan tool and the proper connectors to interface with the PCM on your car.

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96 Audi means its OBD 1 protocol! if you have a obd 1 diagonsis tool you can check the ECU!

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Checking/changing sensors on 2004 toyota camry is a big job? What connection does it have with the computer?

Google OBDII or OBD2 is your first step.

OBDII scanner start at $50+

All 1996+ vehicle has OBD connector within 18" from the center of the dashboard.

It's a worthwhile investment on a better scanner that can do OBDII and CAN bus. The price is over $80+

If you are into automotive in the long ran then you should get OBDII and CAN bus scanner.

Some high end scanner can download collected error code and link it to a PC via USB or serial port.

This will allow you to look up the database for potential fix.

Jul 08, 2010 | 2004 Toyota Camry

2 Answers

How do I reset the check engine light on 2000 audi a6 4.2

get the vehicle scanned for the trouble code most auto stores such as auto zone/advanced auto scan for free check ur local area the check engine comes on when the computer senses a problem or something is not reading right if u want when the code is read the store or mech can and usually do reset the computer

Feb 20, 2010 | 2000 Audi A6

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