C240 2002 - Stuck in limp mode w. 3 different error codes
01-06-2016, 04:24 PM
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Mercedes C240 2002
C240 2002 - Stuck in limp mode w. 3 different error codes
Hi - I have a 2002 C240 automatic with 160k miles on it (owned for about a year since 150k).
About 3 weeks ago it would intermittently get stuck in 1st or 2nd gear. I could restart engine and it would be fine. I could tell there was an issue before moving off because the W/S button would not respond. It also started to jolt/bang when moving into gear.
It has been happening more frequently recently until yesterday the Check Engine light came on and it will not move out of 2nd gear even if I restart the engine.
As far as I know, no maintenance has been done on the transmission.
The codes I have are:
P2001 N15/3 ETC control module faulty
P2600 Circuit 87 voltage too low
P2602 Voltage supply valves faulty
I have been reading lots of the posts on this issue and it seems there are a few things to check (transmission fluid, o-rings on the electrical connector, clean the transmission computer, replace the conductor plate kit)
My problem is I haven't seen a post that describes the fault with these 3 specific error codes, and don't know whether that affects the possible diagnosis or the order I should follow when investigating.
Trying to avoid taking it to a main dealer if po$$ible.
Any help appreciated.
About 3 weeks ago it would intermittently get stuck in 1st or 2nd gear. I could restart engine and it would be fine. I could tell there was an issue before moving off because the W/S button would not respond. It also started to jolt/bang when moving into gear.
It has been happening more frequently recently until yesterday the Check Engine light came on and it will not move out of 2nd gear even if I restart the engine.
As far as I know, no maintenance has been done on the transmission.
The codes I have are:
P2001 N15/3 ETC control module faulty
P2600 Circuit 87 voltage too low
P2602 Voltage supply valves faulty
I have been reading lots of the posts on this issue and it seems there are a few things to check (transmission fluid, o-rings on the electrical connector, clean the transmission computer, replace the conductor plate kit)
My problem is I haven't seen a post that describes the fault with these 3 specific error codes, and don't know whether that affects the possible diagnosis or the order I should follow when investigating.
Trying to avoid taking it to a main dealer if po$$ible.
Any help appreciated.
01-06-2016, 04:46 PM
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Do you have an independent shop that specializes in Benzes local to you? Getting a correct diagnosis from them would be cheaper in the long run than replacing things until all three errors go away.
01-06-2016, 05:35 PM
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Thanks Tommy - yes I do - are the codes provided too vague?
I forgot to mention one thing: several weeks before the problem first arose, my son spilled his drink by the drink holder and gearbox. It was not much liquid but not sure if some of it seeped down.
I forgot to mention one thing: several weeks before the problem first arose, my son spilled his drink by the drink holder and gearbox. It was not much liquid but not sure if some of it seeped down.
01-10-2016, 06:47 AM
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All done - thanks to all!
I replaced the connector plug (a ton of transnission fluid poured out when I removed the old one). Cleaned all the contacts and got the codes cleared and It's running great!
I replaced the connector plug (a ton of transnission fluid poured out when I removed the old one). Cleaned all the contacts and got the codes cleared and It's running great!
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