OBD Issue
Thread Starter
4th Gear
Joined: Aug 2017
Posts: 4
Likes: 0
From: Arkansas
OBD Issue
Hey everyone,
I've been experiencing trouble with the OBD2 connector on my 2007+ Lexus LS 460. Despite checking the 10amp fuse in the OBD2 fuse box on the driver's side and finding it intact, I'm still unable to establish communication with the vehicle's computer using various OBD2 apps and TIS.
Here's what I've done so far:
Does anyone here have any experience with a similar problem or suggestions on what else I could try to resolve this issue? I'm open to any advice or troubleshooting steps you might have. Could there be any other underlying issue causing this problem?
Any guidance or insights is greatly appreciated!
Thanks in advance for your help.
-Moon
I've been experiencing trouble with the OBD2 connector on my 2007+ Lexus LS 460. Despite checking the 10amp fuse in the OBD2 fuse box on the driver's side and finding it intact, I'm still unable to establish communication with the vehicle's computer using various OBD2 apps and TIS.
Here's what I've done so far:
- Confirmed the fuse is in good condition.
- Ensured a secure connection of the OBD2 connector.
Does anyone here have any experience with a similar problem or suggestions on what else I could try to resolve this issue? I'm open to any advice or troubleshooting steps you might have. Could there be any other underlying issue causing this problem?
Any guidance or insights is greatly appreciated!
Thanks in advance for your help.
-Moon
Thread Starter
4th Gear
Joined: Aug 2017
Posts: 4
Likes: 0
From: Arkansas
If anyone has encountered a similar OBD port issue or has suggestions on how to troubleshoot this problem, I would greatly appreciate your insights and guidance. Has anyone successfully dealt with a non-responsive OBD port and managed to resolve it?
The cable(including version software) you're using, and or the diagnostic program you're using. If either or both are counterfeit or inexpensive bay /chinese origin, many have reported issues in recent months. Several people say their Chinese stuff is fine but I believe they got theirs over a year ago when there were fewer issues. I base my statements on reading other's posts on a daily basis for the past 3-4 years. I suppose the OBD2 plug could have a bent pin or other issue as well. Hope this helps.
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Joined: May 2014
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From: Tx
My 2008 LS460 would not communicate with the ECU either. My car would not crank. It would try to crank once then die and would not try again for the next few hours. I thought that the ECU was bad so I got a new one. That did not fix the problem and that waa money wasted. Bad mistake on my part.
I began to read different threads on here and found a couple of them that described the same identical problem I had which ended up being the fuel pressure sensor. I did not want to do the work on the car so I took it to the independent shop I used. I told them what I thought to be the problem and they just kind of ignored it. So after their testing of the car they thought I had a open wire/circuit and I told them I did not think that was the problem. I then had my car towed back home and i replaced the sensor and the car cranked and started. MY OB2 can now comminicate with the ECU.
Just maybe that is your problem as well.Look at this thread
https://www.clublexus.com/forums/ls-...-starting.html
I began to read different threads on here and found a couple of them that described the same identical problem I had which ended up being the fuel pressure sensor. I did not want to do the work on the car so I took it to the independent shop I used. I told them what I thought to be the problem and they just kind of ignored it. So after their testing of the car they thought I had a open wire/circuit and I told them I did not think that was the problem. I then had my car towed back home and i replaced the sensor and the car cranked and started. MY OB2 can now comminicate with the ECU.
Just maybe that is your problem as well.Look at this thread
https://www.clublexus.com/forums/ls-...-starting.html
Last edited by lex442; Jan 5, 2024 at 08:14 PM.
2nd gear
Joined: Mar 2024
Posts: 2
Likes: 0
From: WA
Same problem here!
Hey everyone,
I've been experiencing trouble with the OBD2 connector on my 2007+ Lexus LS 460. Despite checking the 10amp fuse in the OBD2 fuse box on the driver's side and finding it intact, I'm still unable to establish communication with the vehicle's computer using various OBD2 apps and TIS.
Here's what I've done so far:
Does anyone here have any experience with a similar problem or suggestions on what else I could try to resolve this issue? I'm open to any advice or troubleshooting steps you might have. Could there be any other underlying issue causing this problem?
Any guidance or insights is greatly appreciated!
Thanks in advance for your help.
-Moon
I've been experiencing trouble with the OBD2 connector on my 2007+ Lexus LS 460. Despite checking the 10amp fuse in the OBD2 fuse box on the driver's side and finding it intact, I'm still unable to establish communication with the vehicle's computer using various OBD2 apps and TIS.
Here's what I've done so far:
- Confirmed the fuse is in good condition.
- Ensured a secure connection of the OBD2 connector.
Does anyone here have any experience with a similar problem or suggestions on what else I could try to resolve this issue? I'm open to any advice or troubleshooting steps you might have. Could there be any other underlying issue causing this problem?
Any guidance or insights is greatly appreciated!
Thanks in advance for your help.
-Moon
-Rick
Last edited by Rickbossy; Oct 10, 2025 at 08:27 PM.
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