How to use a OBD1 diagnostic code reader on W124 W126 W140 W201 Benz
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- čas přidán 28. 08. 2024
- This video is about how to use a OBD1 diagnostic code reader on W124 W126 W140 W201 Benz
Find more information about the code reader here: www.mercedesco...
Hello Ralph;
Always glad to get some extra help diagnosing electrical woes. Now I'm gonna have to go look and see if mine has the same 8-pin connector yours has. Don't think I recall seeing it before, but as you pointed out it normally covered. Have a great day my friend. Best wishes & warmest regards.
Good luck!
Ralph, like your car, my 420SEL only has pins 6 (SRS) and 7 (AC) present. Pin 3 (CIS) would've been really interesting to pull codes from.
Yeah. Truth be told OBD2 was much more useful, but every little bit of info helps. When it works, that is....
I would love to learn how to use the diagnostic pins on my cars! Wow
Keep your classic Benzs going!
Fantastic 👏 as usual
Thanks!
Hi, is it possible that my car just doesn't have the connector? I've been looking for it for the last hour and can't find it. It's m103(3.0)1992 w124
If it is installed then you will find it behind the engine firewall just to the right of the battery's positive pole. I have found a photo of a blog post that shows where it should be. 68885d1245191736-how-diagnose-engine-codes-89-300e-p4105067x.jpg
Why are you not pressing the switch down and count how often the LED is blinking ?
It made no difference on this one.
Hola, me puede decir dónde comprar esta herramienta
Encuentre más información sobre el lector de códigos aquí: www.mercedescodereader.com
Can you help me have 1992 300ce 24 when tested lights lit up constantly after connecting testing wire without pressing test button for testing lead,
Hi Michal. Unfortunately, you are experiencing the top number issue with OBD1 diagnostic tools. The issue is that defective cables and /. or circuits can cause for there to be a continuous fault signal that causes for the LED to be lit the moment you apply power. The only way that I know is taking a power probe and trying to find those faulty circuits/ wires - it is a tedious process making the use of a OBD1 tester often pretty much useless.
@Stray Benzes thank you, is disconnecting circuits and relays helping
@@michalmuszynski6942 Not necessarily. That can introduce more unknown variables. Testing key circuits one by one using a power probe is likely the best way to isolate problems.
OT: my '94 E300TD also has a similar-looking socket (near heater solenoids/Batt)... there aren't any wires that go to it!!
That is a new on me. Yikes
Hi, on E-bay/Amazon they have the OBD 2 not the OBD 1 you are referring to , will that do? Thanks from Norway
OBD2 is a completely different system and also has a different plug. They are not compatible.
@@straybenzes Thanks, can I purchase OBD 1 from you?
@@fritzjrundhaug81 I currently do not offer parts etc, but here is one of many choices of such a code reader on Ebay. I would give that a try. www.ebay.com/i/222481161915?chn=ps&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&itemid=222481161915&targetid=1098133263004&device=c&mktype=pla&googleloc=9006117&poi=&campaignid=11616981724&mkgroupid=114637734633&rlsatarget=pla-1098133263004&abcId=9300455&merchantid=6296724&gclid=CjwKCAiAudD_BRBXEiwAudakX99Vj-XnLP2S1jW2Oq9-vgw0sijTefOuBhDW-s3LDtJO8yru3SVCJBoCoQEQAvD_BwE
IIRC, your MB has to be newer than '89 or a CA model car. I do know they don't work on my '88 300SE FED model.
OBD1 was available on these very early on.
@@straybenzes It was not available for the '88 & '89 on FED models. It was available for those model years only for CAL compliment models. Believe me, the test socket of my '88 300SE lacks any metal receptacle to plug into where your directions tell you to plug into to make the test.
My OBD1 impulse code reader doesn’t work on my car yet I recently got a check engine light so it had to be working? I mean I followed the wiring and it appears to inside the dash on the passenger side so I’m assuming it glides over to the driver side
I am not sure what you mean. OBD1 readers are often useless on these old cars. What are you gliding over to the driver side?
@@straybenzes I’m not gliding over anything I’m just saying I chased the wiring from the onboard scanner to the passenger side of the vehicles. I unplugged the battery, cleared the check engine light and eventually it came back again. I bought a computer to plug into the OBD1 but will it work? Because the light doesn’t come on so I’m assuming it’s dead
@@plissken94th57 It is probably dead. That is quite the find if you found an ODB1 reader that plugs into any computer. The functionality remains the same though - it still only reads the number of impulses. I have it easier to just bite the bullet and checking one associated system after the other.
@@straybenzes if the onboard OBD1 is dead will the scanner still count the impulses?
@@straybenzes it’s a obd1 scanner from 1988-1995 Mercedes with 3 pin connectors