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Code P0500, reverse not engaging, but high rev?

Tiny
ANDRIN ATEM
  • MEMBER
  • 2000 LEXUS RX 300
  • 3.8L
  • V8
  • 4WD
  • AUTOMATIC
  • 157,906 MILES
P0500 Vehicle speed sensor VSS. / C1201 Engine Control system.

This Teo codes keep coming up after several code erase.

Please can any of this code tell why my vheicle can reverse when gear is set to R?
Monday, January 2nd, 2023 AT 10:21 AM

9 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,861 POSTS
Not really, the codes are to do with the VSS and traction control. When in reverse do the reverse light come on? If not, you could have a transmission gear range sensor that is out here is the location so you can check it out. Check out the images (below). Please let us know what happens.
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Tuesday, January 3rd, 2023 AT 10:00 AM
Tiny
ANDRIN ATEM
  • MEMBER
  • 186 POSTS
Hi Ken, is the switch range gear sensor found in the gear box, or is it out on the gear box? When I looked at the diagram you sent it tell it’s something I have to check inside the gear box.

The Lexus drives very well ahead all the from gears changes very well, except reverse only revs but sometimes very little movement sometimes at all not.
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Tuesday, January 3rd, 2023 AT 10:45 AM
Tiny
KEN L
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I could be the reverse clutches are burned up, how does the fluid smell and have you checked the fluid level?
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Wednesday, January 4th, 2023 AT 7:29 PM
Tiny
ANDRIN ATEM
  • MEMBER
  • 186 POSTS
If so, can the reverse clutch be replaced? If need transmission replacement?

For the fluid I have not checked because we have replaced fluid twice.
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Thursday, January 5th, 2023 AT 2:57 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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It could be the only thing you might try is to install a rebuilt valve body. Here is how in the images below, also you didn't say if the fluid smells burnt. When you replace the valve body new shift solenoids will be replaced as well. Check out the images (below). Please let us know what happens.
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Thursday, January 5th, 2023 AT 1:00 PM
Tiny
ANDRIN ATEM
  • MEMBER
  • 186 POSTS
Thank you, Ken. Image is not very clear.
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Thursday, January 5th, 2023 AT 8:41 PM
Tiny
KEN L
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Did you click to enlarge the image?
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Friday, January 6th, 2023 AT 12:32 PM
Tiny
ANDRIN ATEM
  • MEMBER
  • 186 POSTS
Yes I did.
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Friday, January 6th, 2023 AT 2:14 PM
Tiny
KEN L
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  • 42,861 POSTS
You need to remove the transmission pan and filter to get to the valve body. Check out the images (below). Please let us know what happens.
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Saturday, January 7th, 2023 AT 11:03 AM

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