tons of error codes
Thread Starter
Super Member
Joined: Nov 2010
Posts: 693
Likes: 152
From: USA
m157 SL63
tons of error codes
I made a post in the R231 section (no replies yet), but this looks like a good place to also ask. I have an R231 SL63.
About 2 months ago, the issue started ... I was driving down a local road at about 50mph when I felt the car downshift (or something similar) and all the lights on the dash pretty much went on - the main check engine light was on as well as notifications for distronic not working, traction control not working, blind spot assist not working, etc. The car went in some kind of limp mode where it wouldn't go over about 10mph. After turning the car off and back on, I was able to drive it, but the check engine light was still on.
Running codes through iCarSoft showed things like:
I did see this https://static.nhtsa.gov/odi/tsbs/20...35646-9999.pdf ... although my car isn't listed in the models, it sounds exactly like what happens to my car. That TSB has as a cause damage to the engine wiring harness.
I have some modifications done to my car, and have two different ECUs, and the car has the issue with either swapped in (both used to run fine) ... so it doesn't seem like it's an ECU issue.
Any ideas?
About 2 months ago, the issue started ... I was driving down a local road at about 50mph when I felt the car downshift (or something similar) and all the lights on the dash pretty much went on - the main check engine light was on as well as notifications for distronic not working, traction control not working, blind spot assist not working, etc. The car went in some kind of limp mode where it wouldn't go over about 10mph. After turning the car off and back on, I was able to drive it, but the check engine light was still on.
Running codes through iCarSoft showed things like:
- a bunch of chassis CAN BUS errors
- u012187 (communication with ESP has a malfunction)
- u010087 (communication with the engine control unit has a malfunction)
- u016887 (communication with the electrical ignition lock has a malfunction)
- u015587 (communication with the instrument cluster has a malfunction)
- etc.
I did see this https://static.nhtsa.gov/odi/tsbs/20...35646-9999.pdf ... although my car isn't listed in the models, it sounds exactly like what happens to my car. That TSB has as a cause damage to the engine wiring harness.
I have some modifications done to my car, and have two different ECUs, and the car has the issue with either swapped in (both used to run fine) ... so it doesn't seem like it's an ECU issue.
Any ideas?
Out Of Control!!
Joined: Apr 2019
Posts: 11,921
Likes: 6,769
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
momentary limp-mode....
Do you know what on-board voltage the car is running on when the ECU/Tranny go in limp-mode after driving a while ?
I am not a Benz tech but I think only CAN-C modules can messup the powertrain... That's the whole purpose of separated bus coms for cluster, seats, SRS, etc
How can you rull out your dual ECU custom setup?
I am not a Benz tech but I think only CAN-C modules can messup the powertrain... That's the whole purpose of separated bus coms for cluster, seats, SRS, etc
How can you rull out your dual ECU custom setup?
Thread Starter
Super Member
Joined: Nov 2010
Posts: 693
Likes: 152
From: USA
m157 SL63
Do you know what on-board voltage the car is running on when the ECU/Tranny go in limp-mode after driving a while ?
I am not a Benz tech but I think only CAN-C modules can messup the powertrain... That's the whole purpose of separated bus coms for cluster, seats, SRS, etc
How can you rull out your dual ECU custom setup?
I am not a Benz tech but I think only CAN-C modules can messup the powertrain... That's the whole purpose of separated bus coms for cluster, seats, SRS, etc
How can you rull out your dual ECU custom setup?
I meant that I have two different ECUs, and I have tried them both and it does the same regardless of which ECU is being used. Each ECU was used before for the past year or so without issue.
MBWorld Fanatic!
Joined: Jun 2020
Posts: 1,177
Likes: 314
2006 CLS55 AMG, 2005 SLK 350 AMG
Doesn't mean there isn't an issue. Have a "conductive" test on both and confirm they are still in top condition as all MB require that. All of those comm faults seems to point to possible low voltage issues.
Out Of Control!!
Joined: Apr 2019
Posts: 11,921
Likes: 6,769
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
Ignition Lock DTC ....
- u016887 (....the electrical ignition lock has a malfunction)...
is a CAN-C member, right?- See edits!
+++++
The IGN Switch module runs on both CAN-B and CAN-E1, so not drivetrain CAN-C... The "Gear shift selector lever" is the module on CAN-C besides engine/tranny.
Last edited by CaliBenzDriver; Aug 14, 2021 at 09:05 PM.
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Out Of Control!!
Joined: Apr 2019
Posts: 11,921
Likes: 6,769
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
+1
What does it take to update the firmware in control modules?
Txs.
Last edited by CaliBenzDriver; Aug 14, 2021 at 07:54 PM.
what does it take, nothing, with my system you just go to update offline and done
my custom database has all the new software attached to Xentry offline
