Mechanical connection problems to OBD port

   #1  

rs38

Verified VCDS User
Verified
Joined
Jul 5, 2022
Messages
19
Reaction score
4
Location
Germany
VCDS Serial number
C?ID=519578
it seems that getting 12V is less an issue than having good contact to CAN pins.

Are there any tricks to connect the VCDS securely on the first try, like a special angle to approach or force?!
It's not VCDS-only related, same experience with other OBD tools.
 
   #2  

Crasher

Professional User
Professional VCDS User
Joined
Jun 12, 2015
Messages
1,659
Reaction score
1,498
Location
Nottingham, England
VCDS Serial number
C?ID=21420
It may be similar to one that I had where the plug would not properly engage and I was directed to the extension cable sold by Gendan, you may be able to get something similar from a German distributor. I have even found it useful with ODIS where the dongle is in front of your foot when driving.
 
   #4  

rs38

Verified VCDS User
Verified
Joined
Jul 5, 2022
Messages
19
Reaction score
4
Location
Germany
VCDS Serial number
C?ID=519578
and that extension cable connects flawlessly with car's OBD, whereas nearly all OBD plugs have problems?! What's the trick?
 
   #5  

Uwe

Benevolent Dictator
Administrator
Joined
Jan 29, 2014
Messages
41,400
Reaction score
29,360
Location
USA
VCDS Serial number
HC100001
What's the trick?
On some RHD cars, the manner in which the OBD-II port is installed could be generously described as an "afterthought". There tends not to be sufficient clearance around it (as specified by the SAE/ISO specs) for the tool to seat completely on the socket. The problem is not the socket itself, but the surrounding trim. One way to address this is via judicious application of a Dremel tool to that trim. Because the extension cable does not need to house a circuit board, it's smaller and has fewer issues with tight-fitting, out-of-spec trim.

Another problem that isn't limited to RHD cars is that some other tools (typically cheap Chinese ones) have out-of-spec pins that can damage the female pins in the OBD socket. We've also seen cases where the female pins have been pushed back into the OBD-II socket some.

Since the connectors & pins on our interfaces, as well as the shape & size of the interfaces themselves is fully compliant with the SAE/ISO specs, if you have connection problems like that, first check whether there's anything that's preventing the interface from seating fully on the socket. If you're certain it's seating fully, then do a good, close-up inspection of the female pins in the socket.

-Uwe-
 
   #6  

Crasher

Professional User
Professional VCDS User
Joined
Jun 12, 2015
Messages
1,659
Reaction score
1,498
Location
Nottingham, England
VCDS Serial number
C?ID=21420
On some RHD cars, the manner in which the OBD-II port is installed could be generously described as an "afterthought".

Afterthought! I thought they did it on purpose just to piss us off... The Passat 3B facelift was right above the accelerator pedal.
 
   #7  

Uwe

Benevolent Dictator
Administrator
Joined
Jan 29, 2014
Messages
41,400
Reaction score
29,360
Location
USA
VCDS Serial number
HC100001
   #8  

rs38

Verified VCDS User
Verified
Joined
Jul 5, 2022
Messages
19
Reaction score
4
Location
Germany
VCDS Serial number
C?ID=519578
tested with an extension cable and 👍 true, works on first try (LHD)
 
   #9  

Uwe

Benevolent Dictator
Administrator
Joined
Jan 29, 2014
Messages
41,400
Reaction score
29,360
Location
USA
VCDS Serial number
HC100001
tested with an extension cable and 👍 true, works on first try (LHD)
Please post up the most detailed pictures you can of the OBD-II socket in the car.

-Uwe-
 

PetrolDave

Verified VCDS User
Verified
Joined
Dec 16, 2014
Messages
6,467
Reaction score
6,512
Location
Westbury, UK
VCDS Serial number
C?ID=1423
how can I bulk upload or insert pics without a URL?
You can't, for copyright reasons Uwe won't allow images to be uploaded here so you have to upload them to a sharing website and then paste a link here - like you have done.
 
Top