Reverse lights not working, all other lights work..
Reverse lights not working, all other lights work..
As stated, all other lights in the car work, but neither reverse light does, and bulbs are fine. This leads me to believe that it is the reverse switch, but I cannot find any information on where the switch is located, or any wiring diagrams for it. Does anyone have a location for the switch and or wiring diagrams for it?
Lead Lap
Joined: Mar 2017
Posts: 415
Likes: 28
From: PA
As stated, all other lights in the car work, but neither reverse light does, and bulbs are fine. This leads me to believe that it is the reverse switch, but I cannot find any information on where the switch is located, or any wiring diagrams for it. Does anyone have a location for the switch and or wiring diagrams for it?
No nav and no rear shade (also relies on reverse switch)... I am not sure of any fuse for only the reverse lights, I do not think that they are on a circuit by themselves, but I would love to find out otherwise.
Switch is on the A760 trans.
Just me but with a meter verify the bulbs do in fact have a path ti ground. So basically ohm between an unpainted chassis bolt and one of wires that should be ground. Could be any color but if a black wire exists, its likely the ground.
If you have a 12V test light these work great too as they draw current which a meter doesn't. But now you need to supply 12v.
Also for $15 you get a 48hr pass on the toyota tis website to download schematics and troubleshooting tips. You might start there.
Just me but with a meter verify the bulbs do in fact have a path ti ground. So basically ohm between an unpainted chassis bolt and one of wires that should be ground. Could be any color but if a black wire exists, its likely the ground.
If you have a 12V test light these work great too as they draw current which a meter doesn't. But now you need to supply 12v.
Also for $15 you get a 48hr pass on the toyota tis website to download schematics and troubleshooting tips. You might start there.
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Switch is on the A760 trans.
Just me but with a meter verify the bulbs do in fact have a path ti ground. So basically ohm between an unpainted chassis bolt and one of wires that should be ground. Could be any color but if a black wire exists, its likely the ground.
If you have a 12V test light these work great too as they draw current which a meter doesn't. But now you need to supply 12v.
Also for $15 you get a 48hr pass on the toyota tis website to download schematics and troubleshooting tips. You might start there.
Just me but with a meter verify the bulbs do in fact have a path ti ground. So basically ohm between an unpainted chassis bolt and one of wires that should be ground. Could be any color but if a black wire exists, its likely the ground.
If you have a 12V test light these work great too as they draw current which a meter doesn't. But now you need to supply 12v.
Also for $15 you get a 48hr pass on the toyota tis website to download schematics and troubleshooting tips. You might start there.
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You may not know the answer but has the trans been replaced?
On every trans with a case mounted switch you **almost always** place the trans in Neutral and insert a small gauge wire or maybe a drill bit through a hole in the switch and it drops in. It is doesnt, loosen the switch, rotate it until it does. Tighten switch and adjust linkage so park, neutral and drive align inside at the console.
Make certain vehicle will not move if you get under it and yank it out of park! It'll run you over!!!
On every trans with a case mounted switch you **almost always** place the trans in Neutral and insert a small gauge wire or maybe a drill bit through a hole in the switch and it drops in. It is doesnt, loosen the switch, rotate it until it does. Tighten switch and adjust linkage so park, neutral and drive align inside at the console.
Make certain vehicle will not move if you get under it and yank it out of park! It'll run you over!!!
I have tried working on this, but it seems no matter how hard I try, I cannot easily get to the reverse switch on the tranny to test the switch. I think I am really going to have to get it up on a lift to get to it..
Driver School Candidate
Joined: Dec 2019
Posts: 5
Likes: 3
From: MD
RX350 Reverse Light Fuse
As stated, all other lights in the car work, but neither reverse light does, and bulbs are fine. This leads me to believe that it is the reverse switch, but I cannot find any information on where the switch is located, or any wiring diagrams for it. Does anyone have a location for the switch and or wiring diagrams for it?
GPOM
Ihate is gone.... car wrecked
Thanks for the info.... Guy is gone. Car wrecked. Maybe this will help another....
Driver
Joined: Jul 2018
Posts: 83
Likes: 10
From: South Carolina
The manual does show Fuse #36 is the Backup lights fuse. if the two light do not work, then it could be a fuse, Revere Switch, or the Relay. I have 2012 RX350 and experiencing the same issues. I will have to troubleshoot and find which is causing the problem ! Once I find the fix, I will report to the CLUB !! EJ Dossary, EE
1st Gear
Joined: Nov 2025
Posts: 1
Likes: 0
Shorted backup cam
This worked for me after I shorted my backup cam and then my gear indicator disappeared, along with reverse lights and started getting Trac Off warning.
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theviola92
RC - 1st Gen (2015-present)
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Mar 30, 2015 02:57 PM
