Need help - gas gauge problem.
Thread Starter
Driver School Candidate
Joined: Jul 2015
Posts: 7
Likes: 0
From: Florida
Need help - gas gauge problem.
2004 LS430 right tail light went out. Problem was traced to corrosion on the terminals of the REAR TRUNK FUSE JUNCTION BOX. I cleaned the wiring harness and replaced the Junction Box with a used one problem solved. But now my gas gauge turns on and looks like it is working (but reads incorrect gas level) for 10 seconds. Then it goes to off position with the low fuel warning light lit.
I looked for error codes but there are none.
I had another fuel tank sending unit from a problem a few years ago. Swapped it and same problem.
Any ideas other than the replaced junction box? Thanks for any help.
I looked for error codes but there are none.
I had another fuel tank sending unit from a problem a few years ago. Swapped it and same problem.
Any ideas other than the replaced junction box? Thanks for any help.
Lexus Champion
Joined: Mar 2011
Posts: 2,186
Likes: 729
From: Texas
2004 LS430 right tail light went out. Problem was traced to corrosion on the terminals of the REAR TRUNK FUSE JUNCTION BOX. I cleaned the wiring harness and replaced the Junction Box with a used one problem solved. But now my gas gauge turns on and looks like it is working (but reads incorrect gas level) for 10 seconds. Then it goes to off position with the low fuel warning light lit.
I looked for error codes but there are none.
I had another fuel tank sending unit from a problem a few years ago. Swapped it and same problem.
Any ideas other than the replaced junction box? Thanks for any help.
I looked for error codes but there are none.
I had another fuel tank sending unit from a problem a few years ago. Swapped it and same problem.
Any ideas other than the replaced junction box? Thanks for any help.
Last edited by rkw77080; Apr 30, 2017 at 05:46 PM.
Thread Starter
Driver School Candidate
Joined: Jul 2015
Posts: 7
Likes: 0
From: Florida
Thanks for the reply.
I looked at the Luggage Room J/B and mine is similar but not the same. Mine is a 82670-50080 and doesn't have the connector top right with 18 pins.
I also didn't know there was a fuel level sender on each side. I replaced the passenger side.
I've pulled all the connectors and reseated them, no change. Perhaps the drivers side sending unit?
I looked at the Luggage Room J/B and mine is similar but not the same. Mine is a 82670-50080 and doesn't have the connector top right with 18 pins.
I also didn't know there was a fuel level sender on each side. I replaced the passenger side.
I've pulled all the connectors and reseated them, no change. Perhaps the drivers side sending unit?
Driver
Joined: Apr 2020
Posts: 63
Likes: 19
From: California
Same issue
Sorry to bring up old thread. My tail lights stopped working so I replaced the JB fuse box. I put some electronics cleaner on terminals harness and plugged it back in now my tail lights work but my gas gauge show low fuel and my trunk won’t open . Additionally, I can’t change the display on my dash like for example the mileage the MPG’s none of those mode and display buttons on my steering wheel work also, I can’t tilt the steering wheel up or down like I was able to before and also each time I turn off the car, my mirrors fold in and I can’t change the setting to just stop that from happening so I don’t know what happened or are you ever able to resolve your issue?
Last edited by 916LS; Oct 12, 2024 at 02:12 PM.
Sorry to bring up old thread. My tail lights stopped working so I replaced the JB fuse box. I put some electronics cleaner on terminals harness and plugged it back in now my tail lights work but my gas gauge show low fuel and my trunk won’t open . Additionally, I can’t change the display on my dash like for example the mileage the MPG’s none of those mode and display buttons on my steering wheel work also, I can’t tilt the steering wheel up or down like I was able to before and also each time I turn off the car, my mirrors fold in and I can’t change the setting to just stop that from happening so I don’t know what happened or are you ever able to resolve your issue?
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Driver
Joined: Apr 2020
Posts: 63
Likes: 19
From: California
Water in trunk
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