ECT power switch wiring diagram? (1 Viewer)

[superdawg]

I have a 2000 LX470. About 1 1/2 years ago, the ECT power switch quit working which was a bummer because I liked the peppier acceleration. My wife didn't notice, go figure. About a year ago, I had the trans rebuilt. I just got around to replacing the ECT switch and plugged it in. The second gear start works fine (and light on dash works) and when you press the ECT button, it cancels 2nd gear start. Normal so far I think. The ECT light on the dash does not light up and I don't notice the extended shift points.

I had a neighbor who understands electricity more than I do check the power and switch operation. We have power obviously and the switch appears to work.

Does anyone have a wiring diagram for the ECT switch?

I hope the problem is not inside the transmission or the ECU.

 

[superdawg]

I have a 2000 LX470. About 1 1/2 years ago, the ECT power switch quit working which was a bummer because I liked the peppier acceleration. My wife didn't notice, go figure. About a year ago, I had the trans rebuilt. I just got around to replacing the ECT switch and plugged it in. The second gear start works fine (and light on dash works) and when you press the ECT button, it cancels 2nd gear start. Normal so far I think. The ECT light on the dash does not light up and I don't notice the extended shift points.

I had a neighbor who understands electricity more than I do check the power and switch operation. We have power obviously and the switch appears to work.

Does anyone have a wiring diagram for the ECT switch?

I hope the problem is not inside the transmission or the ECU.

Bump. This is sad on my part. Almost 5 years later I am finally getting around to looking at it. The switch still works but the problem is elsewhere. Going to take it in to a shop to see what they can find....

 

[Ayune]

Here are the diagrams from a ‘98. I would guess they’re the same through ‘01 at least.

The PWR/2ND switch is on p.3. If you want the five additional pages showing the connector pinouts & locations let me know.

P.1

P.2

P.3

P.4

 

[superdawg]

Ayune,
That is extremely helpful. No hurry, but if you get the chance to put the five additional pages with the pin outs, I would really appreciate it.
Superdawg