Can Bus
MBWorld Fanatic!
Joined: May 2015
Posts: 4,037
Likes: 1,011
From: Miami, FL
2003 CL 600
The front SAMs on both sides under the hood are on the CAN, what problems are you having exactly? Water can go strange places once it gets past the seals that normally stop it.
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and it can go thru the wires from one device to another also
also, you can't trust the wires as I I found once a wheel sensor from Gearbox module to right wheel sensor that when you measured was ok but when driving goes wrong
I placed a new wire from the connector to the wheel and done (before that I replaced the sensor 3 times as undetectable)
you can NEVER trust the wires if not new on this car
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Thread Starter
Member
Joined: Aug 2016
Posts: 75
Likes: 8
Cl600 TT
Water has got into the engine ECU and Sam unit that side
I get 1041 esp bas n74 fault Code
p0120 throttle code
had 3 people run star on car and say esp is a ghost code but throttle body is at fault
throttle body has been replaced twice 1 used 1 new
merc techs tried to adapted throttle body but can’t on star
I can adapted throttle body by clearing ECU by holding throttle pedal down and switching off , then un plug throttle body then plug in and let it adapted
car ran ok but with abs light on fault code for c1540 rotary sensor , was like that then main fault came back
I get 1041 esp bas n74 fault Code
p0120 throttle code
had 3 people run star on car and say esp is a ghost code but throttle body is at fault
throttle body has been replaced twice 1 used 1 new
merc techs tried to adapted throttle body but can’t on star
I can adapted throttle body by clearing ECU by holding throttle pedal down and switching off , then un plug throttle body then plug in and let it adapted
car ran ok but with abs light on fault code for c1540 rotary sensor , was like that then main fault came back
Water has got into the engine ECU and Sam unit that side
I get 1041 esp bas n74 fault Code
p0120 throttle code
had 3 people run star on car and say esp is a ghost code but throttle body is at fault
throttle body has been replaced twice 1 used 1 new
merc techs tried to adapted throttle body but can’t on star
I can adapted throttle body by clearing ECU by holding throttle pedal down and switching off , then un plug throttle body then plug in and let it adapted
car ran ok but with abs light on fault code for c1540 rotary sensor , was like that then main fault came back
I get 1041 esp bas n74 fault Code
p0120 throttle code
had 3 people run star on car and say esp is a ghost code but throttle body is at fault
throttle body has been replaced twice 1 used 1 new
merc techs tried to adapted throttle body but can’t on star
I can adapted throttle body by clearing ECU by holding throttle pedal down and switching off , then un plug throttle body then plug in and let it adapted
car ran ok but with abs light on fault code for c1540 rotary sensor , was like that then main fault came back
did you cleanup all plugs with contact cleaner
did you verify if you don't have one pin in a plug is bend
did you hook up DAS and verify if the speed-sensors give correct speed signal to the transmission module
all this should have been done already
then, if all this is ok, you have a wiring problem
find the broken or half broken wire and replace it like me
or buy a new engine harness from MB
Thread Starter
Member
Joined: Aug 2016
Posts: 75
Likes: 8
Cl600 TT
ECU did have corrosion inside
Cleaned up with contact cleaner
No bent pins
Speed sensor not checked , i can't get anyone back to run star on the car and well respected garage today spoke with thinks its doomed
I have a good used engine loom , is it easy to fit?
Engine has 113k on it chassis has brand new yellowspeeds
Cleaned up with contact cleaner
No bent pins
Speed sensor not checked , i can't get anyone back to run star on the car and well respected garage today spoke with thinks its doomed
I have a good used engine loom , is it easy to fit?
Engine has 113k on it chassis has brand new yellowspeeds
ECU did have corrosion inside
Cleaned up with contact cleaner
No bent pins
Speed sensor not checked , i can't get anyone back to run star on the car and well respected garage today spoke with thinks its doomed
I have a good used engine loom , is it easy to fit?
Engine has 113k on it chassis has brand new yellowspeeds
Cleaned up with contact cleaner
No bent pins
Speed sensor not checked , i can't get anyone back to run star on the car and well respected garage today spoke with thinks its doomed
I have a good used engine loom , is it easy to fit?
Engine has 113k on it chassis has brand new yellowspeeds
I think your ecu is dead
2 things you can do
buy one from ebay and get a tech transfer the main chip from the old to the new bought
then your ECU will match to the EIS and GearBox selector and car will authorize running
or
send it to a repair service, many online
PM me for how much you sell if so, I buy
