2nd gen automatic trans

Good afternoon everyone I'm new in this forum and I hope to find answers to my problem.
2008 Tacoma TRD Sport. Just came back from a road test, here are some results: if on the automatic mode the gears change as they should. If I put the shifter in L and leave it there, the trans. will shift by it self ( like it was on D) up to the 4th not higher. Than, once it reach the 4th, if I move the shifter up, there is no difference until I reach the 3th, than the revolution increase because it downshift from 4 to 3. And when manually shifted the dashboard lights, that indicate the shifter position, are not working for the L and the 2.

 

Well, if it's not random/intermitent, check your linkage, the signal plug/wire and fluid level. If it look clean you will need to find a obd2 scanner with a good tranmission support to check what's happening. The A750F seem easy to understand and if you need to drop the pan to investigate further.

look for Toyota A750 E/F A760 E/F A761 Introduction - NET on google, and download the PDF. Read it , page 6 for the "Logic" table it help understand the "state" when you drive. This help alot for troubleshooting everything controlled by the computer.

 

Yes, they both work as they should and both of them have a working light in the dashboard.