Darkwave

I was heading home on the highway today and felt my car lose power for a split second. I didn't think anything of and i was going about 100 km/h, i heard like the car was revving high and that's when i turned off the music. The rpm gauge was about 4k and i noticed that the green light to indicate that the car is in drive is not lit. The second time it happened a engine code P0706 and hard shifts, it won't go to 3rd gear. Also, if i try to drive in manual mode it doesn't display the gear it's in. Does anything come to mind? Please help. I tried looking through the threads, but I couldn't find anything specific to my issue.

thoiboi

The in-site search is a bit finicky sometimes, use Google to search your code "p0706" but add "site:acurazine.com" https://www.google.com/search?q=site...hrome&ie=UTF-8

You should see some results that fit your issue.

Darkwave

Thank you, I'll give that a try.

Darkwave

I couldn't find anything to help in regards to the problem that I'm having in the link that you provided me.

Darkwave

I left an important piece of information, the car is a 2005 Acura TL.

Darkwave

I bought an OEM transmission range sensor and installed it, to my disappointment, it wasn't the problem.
Do you guys think that a faulty shift solenoid could cause this problem? I spoke to a Tech at Acura and he's already calling a tranny. Smh...

Darkwave

Hey guys, can anyone think of anything regarding my issue?

csmeance

The D blinking means there is an issue stored in the car and a regular scanner won't pull it up most of the time. Buy a copy of HDS from ebay or find a shop that has (HONDA DIAGNOSTIC SYSTEM) and plug it into your car. The Code will be different like 21-12 or something of the nature. Look in your service manual (free download online) and you can see what the issue is.

I wouldn't be surprised if it's a bad 3rd or 4th gear pressure switch.

Darkwave

That's one of the problems, there is no D light.
Would a faulty 3rd and/or 4th gear pressure switch cause the D light or when in manual mode gear not to display?

Darkwave

Update on my 2005 TL issue; the problem was a faulty ECU(computer). It took some digging, but i got it. Thanks for all the help and suggestions.

Slpr04UA6

^did the ecu happen to have any water marks on it?


How did you figure out it was faulty?

Darkwave

No, there was no water marks on the ecu, no water intrusion.
I printed off the wiring diagrams for the range sensor operations from bbbind.com. I checked for power, ground and continuity from the range sensor to the ECU. I also checked the gauge cluster for good measures.

Acura TL Builder

Is your TL in good working order now?

Darkwave

To my delight, yes.
A lot.... of people were saying that the tranny is toast, but not always the case.