CEL questions
Thread Starter
Newbie
Joined: Oct 2006
Posts: 3
Likes: 0
From: Riverside, CA
1999 ML320
CEL questions
hi im new here. 
got a question about my 1999 ML320
saturday i was driving from one party to another and at first i didnt see any lights on the dash but then later on i noticed the CEL was turned on.
so today i went to autozone and pulled the codes with a reader and got
P0173 - Fuel Trim Malfunction (Bank 2)
i did a search on the forums and it seems like a simple thing to fix
but i also go another code
P0700 - Trans Control Sys Malfunction
i did a search and only 1 result came up and wasnt helpful at all. what is that last code about and any advice on what to do about it?
am i gonna have to bring it to the stealership?
got a question about my 1999 ML320
saturday i was driving from one party to another and at first i didnt see any lights on the dash but then later on i noticed the CEL was turned on.
so today i went to autozone and pulled the codes with a reader and got
P0173 - Fuel Trim Malfunction (Bank 2)
i did a search on the forums and it seems like a simple thing to fix
but i also go another code
P0700 - Trans Control Sys Malfunction
i did a search and only 1 result came up and wasnt helpful at all. what is that last code about and any advice on what to do about it?
am i gonna have to bring it to the stealership?
Senior Member
Joined: May 2003
Posts: 292
Likes: 0
From: Houston, TX
Q & R
Try disconnecting your battery and let it sit for about 15 min. Then reconnect and drive it about 40 miles for the computer to relearn all the sensor readings. I did this on my 00 and the CEL did not come back on, the state inspection also showed no codes present after I did that.
