Need wire schematic 88650-33b31 AC amplifier assembly

Tiny
BOBM65
  • MEMBER
  • 2014 LEXUS ES 350
  • 40,000 MILES
Putting Lexus es350 seats in a different car and need to know what wires on the Toyota 88650-33b31 (ac amplifier assembly) to hook up to power, switches and seats (for heat and ventilation). Having an awareness of what the pins on each of the 3 plugs on this module would help me greatly.
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Wednesday, February 5th, 2020 AT 9:33 AM

9 Replies

Tiny
CARADIODOC
  • EXPERT
This is what I found for "Climate Seats". If you need additional diagrams related to power seats, I need to know if you have with or without memory position. I'll post them in a separate reply to keep them grouped together without getting mixed up.
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Wednesday, February 5th, 2020 AT 12:20 PM
Tiny
CARADIODOC
  • EXPERT
These first three diagrams are for the driver's power seat without memory position. The last three are for the right front seat.
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Wednesday, February 5th, 2020 AT 12:46 PM
Tiny
CARADIODOC
  • EXPERT
These are for the driver's power seat with memory positioning.
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Wednesday, February 5th, 2020 AT 1:26 PM
Tiny
CARADIODOC
  • EXPERT
And these are for the passenger front seat with memory.
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Wednesday, February 5th, 2020 AT 1:29 PM
Tiny
BOBM65
  • MEMBER
None of these show the pin outs for the ac amplifier assembly. I have these same docs. None of them tell me what each pin on the ac amplifier assembly does. That s what I m looking for.
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Thursday, February 6th, 2020 AT 10:40 AM
Tiny
CARADIODOC
  • EXPERT
There's no list that shows the wire colors and functions. You'll have to find the wires on the diagrams along with the terminal numbers.

If you find these too hard to read, as I do, right click a diagram, click "Copy", then "paste" it into an MS Word typing program. There you can expand it as necessary.
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Thursday, February 6th, 2020 AT 1:44 PM
Tiny
JIS001
  • EXPERT
Why are you putting Lexus seats on your vehicle? Every vehicle is configured differently to just be able to pull a diagram out and say this pin is this and this pin is that? A Toyota A/C amplifier will be way different to a Lexus A/C amplifier.

Also does the passenger seat have occupant weight? You have power seats and if you do is there memory seats? Trust me on this. Toyota makes there wiring diagrams complex that even the Bureau of Automotive Repair can't read. I brought it up in class and there answer was there vehicles do not break down like other manufacturers. And also trust me on this. There wiring diagrams are not always accurate. They will post a new bulletin on what wire is what.
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Sunday, February 9th, 2020 AT 12:15 AM
Tiny
BOBM65
  • MEMBER
Unfortunately no, I have all those docs. I need to know what color wires on the main seat harness do. It doesn t answer the question.
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Sunday, February 9th, 2020 AT 11:37 AM
Tiny
CARADIODOC
  • EXPERT
As I said, there is no list of wire colors like there is with Chrysler diagrams. That's why I went through all the trouble of configuring these diagrams so they could be posted. You have to expand these diagrams, then look at the written designations next to each wire and hope you know what each one stands for. The list of wire and terminal functions doesn't exist, otherwise I would have posted them.

Here's a sample of a diagram I expanded, but if you already have these diagrams, you have the information you're asking about. If you don't know what a wire's listing means, you have to follow it to see where it goes or what it does. For example, in this one, the first wire is designated "B". That indicates it's a 12-volt power source, and if you follow it back, you'll see it goes to a fuse. This goes back to the turn of the last century when "portable" radios used three batteries to run the tubes. They called them the "A" battery, the "B" battery, and the "C" battery. The A and C batteries were relatively low voltage. The main one for supplying the high voltage tubes needed was the "B" battery, and ever since, we call the power supplies the "B plus". You'll often see "B+" on diagrams.
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Sunday, February 9th, 2020 AT 4:06 PM

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