E300TD code P0560
Thread Starter
Newbie
Joined: Aug 2022
Posts: 4
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From: Tampa, FL
1998 E300TD
E300TD code P0560
I own a 1998 E300 turbo diesel with 117,000 miles in mint condition. I recently bought it from an old man who babied and garaged it since new. The car runs and drives fine, but every time I turn the car off it trips the check engine light with the same code P0560 - system voltage malfunction. I clear it, start the car and drive to my destination, no MIL when on the road, but sure enough when I turn the key off the dash reads "check engine electronics" and trips the MIL with a P0560 code. The battery is only a year old and tested good. I pulled the alternator and had it bench tested at 13.1 volts. I went ahead and put a new Bosch voltage regulator in it while I had it out. All terminals and connections are clean and tight. This is driving me nuts.
Last edited by Diesel-Dave; Sep 12, 2022 at 09:11 AM.
Member
Joined: Mar 2019
Posts: 171
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From: Aurora,CO
06' Audi Quattro, 00'SL500
I spent many years in the elevator trade trouble shooting electrical issues. One one issue I had that drove me nuts was a diode that was fine until under a current load it would open and cause an issue. Just saying..
But have you tested voltage when is running or have you tested the negative post to the negative ground wire while is it hooked up not running? If you read voltage from the post to your negative lead that is your voltage drop. It may be as little as 1 or 2 volts.
But have you tested voltage when is running or have you tested the negative post to the negative ground wire while is it hooked up not running? If you read voltage from the post to your negative lead that is your voltage drop. It may be as little as 1 or 2 volts.
Thread Starter
Newbie
Joined: Aug 2022
Posts: 4
Likes: 0
From: Tampa, FL
1998 E300TD
Hey sorry for the delayed response. I took on a new job and working way more hours. I revised my original post to be more accurate if you wanna go over it again. So I start the car this morning, no MIL, diesel engine purring like a kitten. The battery reads 12.7 volts at the terminals after a cold start and slowly build up to 13.6 volts in about 2 minutes. I don't know why it takes 2 minutes before it hits full charging power. I shut the engine off and disconnect the negative cable. From the negative cable to negative battery post it reads 11.9 volts. Is this normal?
Thread Starter
Newbie
Joined: Aug 2022
Posts: 4
Likes: 0
From: Tampa, FL
1998 E300TD
The E300TD is a nice car and all, but I'm selling it and going back to my Nissan 350Z 6 speed, a better car in my opinion and much more fun to drive.
Last edited by Diesel-Dave; Sep 16, 2022 at 09:44 AM.
