What does P0770 code mean? Is this serious? - Toyota Nation Forum : Toyota Car and Truck Forums
3rd & 4th Generation (19921996 & 19972001) Toyota Camry Discussion for years: 1992-1996 & 1997-2001 Topics of discussion range from fuel economy, safety, modifications, performance all involving America's favorite family car, the Toyota Camry.

 
LinkBack Thread Tools Display Modes
#1 Old 10-01-2007, 07:52 PM
New TN User
 
Join Date: Oct 2007
Location: Canada
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
(Thread Starter)
Question What does P0770 code mean? Is this serious?

Hello,

I own a 2001 toyota camry, and recently a check engine light came on. I took it to the dealer and they cleaned up the transmission oil. After a week, the light came back on again, with the same code P0770.

I took it to the dealer for the 2nd time, they told me they couldn't find anything wrong, and that there were no shifting problems. And they told me to recheck this on next service to see if only one code would require further diagnosis.

What are your views on this?

-Mike
Microbiology is offline  
Sponsored Links
Advertisement
 
#2 Old 10-01-2007, 09:57 PM
Former Toyota/ASE Master
 
Qslim's Avatar
 
Join Date: Aug 2007
Location: Eglin AFB, FL
Posts: 1,078
Blog Entries: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 8 Times in 8 Posts
iTrader Score: 0 reviews
Quote:
Originally Posted by Microbiology View Post
Hello,

I own a 2001 toyota camry, and recently a check engine light came on. I took it to the dealer and they cleaned up the transmission oil. After a week, the light came back on again, with the same code P0770.

I took it to the dealer for the 2nd time, they told me they couldn't find anything wrong, and that there were no shifting problems. And they told me to recheck this on next service to see if only one code would require further diagnosis.

What are your views on this?

-Mike
When the computer generates PO770 it's trying to tell you that it is seeing a problem with the torque converter clutch lock-up engagement either not locking or releasing when it should. There is a shift solenoid that is commanded by the computer to direct hydraulic pressure through the valve body to the torque converter lock up clutch at certain speeds. The two most common problem areas with this code would be either dirty transmission fluid blocking flow to the clutch or a faulty solenoid valve.
When you say that they 'cleaned up' the fluid, what service did you have? A drain & fill would be pretty ineffective, as it doesn't replace close to the whole amount of fluid in the trans. If the torque converter was indeed performing normally when they test drove it, then you might have an intermittent problem with the valve.

-- Get him, boy....

Hello to my NSA pals reading this on Echelon
Qslim is offline  
Sponsored Links
Advertisement
 
Reply

  Toyota Nation Forum : Toyota Car and Truck Forums > Toyota Passenger and Sports Car Forums > Camry and Solara Forum > 3rd & 4th Generation (19921996 & 19972001)

Bookmarks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Toyota Nation Forum : Toyota Car and Truck Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome