E63 Limp Mode
Thread Starter
Junior Member
Joined: Apr 2009
Posts: 16
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From: U.K
2012 E350 Sport 2014 E63
E63 Limp Mode
Hi Guys
Have a 2014 W212 E63.
Car is currently in limp and has the following codes:
P045800 The purge valve of the evaporative emission control system has a short circuit to ground.
P044400 The purge valve of the evaporative emission control system has an open circuit.
P024511 The output for the low-pressure turbocharger has a short circuit to ground.
P023B00 Actuation "Coolant pump of charge air cooler" has a short circuit to ground.
P069100 The output of electric fan 1 has a short circuit to ground.
P06DB00 The actuation of the valve of the oil pump in the combustion engine has a short circuit to ground.
U104787 Communication with the oil sensor has a malfunction.
P059800 The coolant thermostat has a short circuit to ground.
P005700 The output for the heater of oxygen sensor 2 (cylinder bank 2) has a short circuit to ground.
P003700 The output for the heater of oxygen sensor 2 (cylinder bank 2) has a short circuit to ground.
P005100 The output for the heater of oxygen sensor 1 (cylinder bank 1) has a short circuit to ground.
P003100 The output for the heater of oxygen sensor 1 (cylinder bank 1) has a short circuit to ground.
Bit of background info the previous owner had the car remapped and then had also installed down pipes after.
I believe the last four codes will be because of this and need to be mapped out.
Am unable to read engine oil temp and also coolant warning light is on but coolant is topped up.
All the short to ground codes im not sure if this is all linked to one thing causing the rest of the codes?
If anyone has any idea would be much appreciated.
Thanks
Have a 2014 W212 E63.
Car is currently in limp and has the following codes:
P045800 The purge valve of the evaporative emission control system has a short circuit to ground.
P044400 The purge valve of the evaporative emission control system has an open circuit.
P024511 The output for the low-pressure turbocharger has a short circuit to ground.
P023B00 Actuation "Coolant pump of charge air cooler" has a short circuit to ground.
P069100 The output of electric fan 1 has a short circuit to ground.
P06DB00 The actuation of the valve of the oil pump in the combustion engine has a short circuit to ground.
U104787 Communication with the oil sensor has a malfunction.
P059800 The coolant thermostat has a short circuit to ground.
P005700 The output for the heater of oxygen sensor 2 (cylinder bank 2) has a short circuit to ground.
P003700 The output for the heater of oxygen sensor 2 (cylinder bank 2) has a short circuit to ground.
P005100 The output for the heater of oxygen sensor 1 (cylinder bank 1) has a short circuit to ground.
P003100 The output for the heater of oxygen sensor 1 (cylinder bank 1) has a short circuit to ground.
Bit of background info the previous owner had the car remapped and then had also installed down pipes after.
I believe the last four codes will be because of this and need to be mapped out.
Am unable to read engine oil temp and also coolant warning light is on but coolant is topped up.
All the short to ground codes im not sure if this is all linked to one thing causing the rest of the codes?
If anyone has any idea would be much appreciated.
Thanks
Super Member
Joined: Dec 2010
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From: Long Island ny
2007 e350 sport. 2010 350 4matic sport. Worlds first W212 E63R self built.
I would check the main harness ecu plugs for oil at the pins . Open circuit means broken wire, or a pin that’s not completely contacting due to access oil. Worth a shot. Especially if front work hasn’t been done recently.
Thread Starter
Junior Member
Joined: Apr 2009
Posts: 16
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From: U.K
2012 E350 Sport 2014 E63
Fuse 22 - 40amp fuse was blown.
Replaced the fuse and car was back to normal with no codes. This lasted around 50 miles of driving and then the light has returned back on.
Does anyone know what sensors are linked to fuse 22 to help with pinpointing the fault.
Getting the car checked by MB Indy tomorrow also.
Replaced the fuse and car was back to normal with no codes. This lasted around 50 miles of driving and then the light has returned back on.
Does anyone know what sensors are linked to fuse 22 to help with pinpointing the fault.
Getting the car checked by MB Indy tomorrow also.
Out Of Control!!
Joined: Jun 2004
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2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
You're still grounding somewhere and short circuiting to blow that high amp fuse obviously ... harness is bad or has liquid on it or you have a stuck/sticking relay
for the w212 this covers engine electronics fuse 22; bad ecu possibly? Bad connection to ecu? I would reseat the ecu and check the integrity of the ecu harnesses (there are two of them)
this is the beauty of me having a cloned ecu of my stock ecu. I tuned my cloned ecu and I can always go back to stock to rule out hardware issues
for the w212 this covers engine electronics fuse 22; bad ecu possibly? Bad connection to ecu? I would reseat the ecu and check the integrity of the ecu harnesses (there are two of them)
this is the beauty of me having a cloned ecu of my stock ecu. I tuned my cloned ecu and I can always go back to stock to rule out hardware issues
Last edited by PeterUbers; Nov 18, 2019 at 12:09 PM.
Super Member
Joined: Aug 2005
Posts: 928
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From: nyc
04 E55 B07, 11 CL63, 17 GLE63S
Any outcome on this? I’m having same codes on w216 cl63 due to a short wire from water pump housing thermostat but can’t locate any blown fuses. Was the 22 fuse on e63 at the front dam or rear Sam?
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Joined: Apr 2020
Posts: 58
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CLS 63 AMG
Hello guys, I know it's an old thread maybe I'll revive someone with this post haha.
Anyways, same problem here!
My mechanic unplugged every connection that has fault codes, and fuse 22 still keeps blowing... As soon as he connects the ECU the fuse 22 blows.
He went on vacation, when he comes back he'll try disconnecting the ignition coils as well. He has an idea about it. Will keep you all posted.
Anyways, same problem here!
My mechanic unplugged every connection that has fault codes, and fuse 22 still keeps blowing... As soon as he connects the ECU the fuse 22 blows.
He went on vacation, when he comes back he'll try disconnecting the ignition coils as well. He has an idea about it. Will keep you all posted.
Out Of Control!!
Joined: Apr 2019
Posts: 12,003
Likes: 6,827
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
pinpointing 40A dead short....
every component unplugged means one thing: HARNESS!
did I read O2 heaters circuits are involved... harness around hot stuff! Visually inspect all downstream/upstream wiring harness...
> connect a DVM/Ohmeter with a continuity beeeper at fuse line and start exercising harness sections gently while listening for beep discontinuitions.
> the list of components on that fuse#22 and their location will give you ideas where to trace the circuit route.
this should bring in result unless the short goes intermittent. At that point you can use a tone tracer that injects a pulse you can follow regardless.
Good luck for a quick catch.
did I read O2 heaters circuits are involved... harness around hot stuff! Visually inspect all downstream/upstream wiring harness...
> connect a DVM/Ohmeter with a continuity beeeper at fuse line and start exercising harness sections gently while listening for beep discontinuitions.
> the list of components on that fuse#22 and their location will give you ideas where to trace the circuit route.
this should bring in result unless the short goes intermittent. At that point you can use a tone tracer that injects a pulse you can follow regardless.
Good luck for a quick catch.
Last edited by CaliBenzDriver; Sep 8, 2021 at 02:33 PM.
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Junior Member
Joined: Apr 2020
Posts: 58
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CLS 63 AMG
every component unplugged means one thing: HARNESS!
did I read O2 heaters circuits are involved... hot stuff!visually check downstream/upstream wiring harness...
> connect a DVM/Ohmeter with a continuity beeeper at fuse line and start exercising harness sections gently while listening for beep discontinuitions.
> the list of components circuit and location will give you idea where to trace the route.
this should bring in result unless the short goes intermittent.
did I read O2 heaters circuits are involved... hot stuff!visually check downstream/upstream wiring harness...
> connect a DVM/Ohmeter with a continuity beeeper at fuse line and start exercising harness sections gently while listening for beep discontinuitions.
> the list of components circuit and location will give you idea where to trace the route.
this should bring in result unless the short goes intermittent.
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Out Of Control!!
Joined: Apr 2019
Posts: 12,003
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From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
The hard part is pinpointing the problem to solve it.
Junior Member
Joined: Apr 2020
Posts: 58
Likes: 5
CLS 63 AMG
Out Of Control!!
Joined: Apr 2019
Posts: 12,003
Likes: 6,827
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
