Esp/bas

[Boatlon]

I think, but not sure i was told that it could only be 0.5 to 0.75 degrees out, other wise would throw up a code. The tracking has to be done with the steering wheel in the direct ahead.

Ok with the steering straight I have removed the ring behind to take it apart and check it out , the ring has a groove right round the circumference and has pick ups equally spaced within it, so if one of these were faulty I suspect I will have moved the fault by replacing it tha last time by turning it to its further most positin and then back 2.5 turns which would be the central position and steering wheel straight.The steering wheel initially picked this position only when you were on a left lock and since replacing it was picking the fault up very quickly to the right , so I figured one of these sensors was dirty and it has now had a big clean while dismantled and ready for placing behind the steering wheel later this evening.
My question is while turning the cartridge to the right to where the ribbon stops it from going further , do I count 2.5 turns given that it takes three turns lock to lock , but take it an extra turn off the fully wound position first then 2.5 turns ?
Perhaps no one has gone this far just thought I would ask if anyone knew please.

 

[Boatlon]

I would like to add that , does the Asr button throw a light off on the dash when you press the top half of the rocker switch, if it doesn't , can I assume that it's not working , when I use this on live values it doesn't alter the value to zero , instead it reads 5.0 v an when pressed goes to 1.7v and letting go reverts back to 5v, does this indicate a problem ?
Equally pressing the lower half down on the button it shows zero , again reverts to 5.0v
Is this showing up a fault with the esp?

 

[Boatlon]

Ok I have moved on in this problem but not far .
Can anyone tell me if the control unit N47-5 is the ABS unit , looks like it’s not speaking and after another steering angle sensor has been fitted the fault doesn’t disappear from the last sensor , so the module N47-5 Fault C1000 stays on and will not clear .

 

[Submariner1]

Ok I have moved on in this problem but not far .
Can anyone tell me if the control unit N47-5 is the ABS unit , looks like it’s not speaking and after another steering angle sensor has been fitted the fault doesn’t disappear from the last sensor , so the module N47-5 Fault C1000 stays on and will not clear .

On mine thats the ABR Controller
My problem required them to replace all the wheel sensors.
It said “no CAN signal recieved from N47-5 ( ESP Controller)
I pick it up to tomorrow so will find if its cured.
But we have different cars. And I have Adaptive Braking, and adaptive braking lights.

 

[Boatlon]

On mine thats the ABR Controller
My problem required them to replace all the wheel sensors.
It said “no CAN signal recieved from N47-5 ( ESP Controller)
I pick it up to tomorrow so will find if its cured.
But we have different cars. And I have Adaptive Braking, and adaptive braking lights.

Ok thanks for your reply , I think they are all different , I think the wheel sensors will be ok as I would get a fault code for them separately.

 

[Submariner1]

Ok thanks for your reply , I think they are all different , I think the wheel sensors will be ok as I would get a fault code for them separately.

I got wheel sensor faults under ABR Adaptive brakes ... lots of stored ones.
And yes I suspect your could be very different.

 

[Boatlon]

What is the module N47-5 please , can someone identify it , this coming up on fAults , is there only one Abs module the one with the Abs pump?

 

[LostKiwi]

N47 is the ABS system. Yes there is only one.

 

[Boatlon]

So

N47 is the ABS system. Yes there is only one.

the pump / block and con module is what I’m looking at , some searches , be it other models seem to have different arrangements even amongst early A class models , I guess it’s a case of matching numbers . Cheers Pat

 

[Boatlon]

Many thanks Lost kiwi , I meant in the thread pub module not con haha

 

[Boatlon]

So now ordered an ABS unit as the fault leads to a connection from engine ecu can bus error communicating , clear the engine ecu and cannot clear steering sensor and Abs /esp module fault C1000 N47-5

 

[Boatlon]

So now ordered an ABS unit as the fault leads to a connection from engine ecu can bus error communicating , clear the engine ecu and cannot clear steering sensor and Abs /esp module fault C1000 N47-5

OH DEAR !
Not much further on here , fitted new unit and diagnostic still not clearing the fault with angle sensor and N47-5 abs module/steering angle sensor and can bus error can be cleared on engine ecu comms with abs module but returns all the time , please what is going on here.

 

[Boatlon]

Looking back on my own thread, this has all happened since the front spring was changed.

6mths on still got abs module fault and can bus error traction with engine ecu and steering angle sensor . Live values with wheel speeds synchronise but angle sensor was 15degrees out lock to lock now the sensor will show no more than 0.00
Any clues will do please.

 

[Boatlon]

Looking back on my own thread, this has all happened since the front spring was changed.

6mths on still got abs module fault and can bus error traction with engine ecu and steering angle sensor . Live values with wheel speeds synchronise but angle sensor was 15degrees out lock to lock now the sensor will show no more than 0.00
Any clues will do please.

Another month by and I got a hold of an ICARSOFT SPECIFIC TO Merc and now I have some codes that are consistently coming up .
The codes are C1140-016 steering angle sensor and sensor short circuit. Would any one have any idea where this short circuit might be , is it a common area?
The values I get are random angles fro left to right and sometimes , well more times static. I have another steering angle unit and its pretty much the same , I have checked the fuse and relay and wiggled about a few wires under them but not getting clues . I have even swapped abs pumps and module with no improvement.
Does anyone know anyone who is likely to help moving forward.
Cheers Pat

 

[Boatlon]

6mths on still got abs module fault and can bus error traction with engine ecu and steering angle sensor . Live values with wheel speeds synchronise but angle sensor was 15degrees out lock to lock now the sensor will show no more than 0.00
Any clues will do please.
Another month by and I got a hold of an ICARSOFT SPECIFIC TO Merc and now I have some codes that are consistently coming up .
The codes are C1140-016 steering angle sensor and sensor short circuit. Would any one have any idea where this short circuit might be , is it a common area?
The values I get are random angles fro left to right and sometimes , well more times static. I have another steering angle unit and its pretty much the same , I have checked the fuse and relay and wiggled about a few wires under them but not getting clues . I have even swapped abs pumps and module with no improvement.
Does anyone know anyone who is likely to help moving forward.
Cheers Pat

 

[Boatlon]

6mths on still got abs module fault and can bus error traction with engine ecu and steering angle sensor . Live values with wheel speeds synchronise but angle sensor was 15degrees out lock to lock now the sensor will show no more than 0.00
Any clues will do please.
Another month by and I got a hold of an ICARSOFT SPECIFIC TO Merc and now I have some codes that are consistently coming up .
The codes are C1140-016 steering angle sensor and sensor short circuit. Would any one have any idea where this short circuit might be , is it a common area?
The values I get are random angles fro left to right and sometimes , well more times static. I have another steering angle unit and its pretty much the same , I have checked the fuse and relay and wiggled about a few wires under them but not getting clues . I have even swapped abs pumps and module with no improvement.
Does anyone know anyone who is likely to help moving forward.
Cheers Pat

Would anyone have a wiring diagram for the steering angle sensor , would there be a problem testing this on a diagnostic with the airbag and horn off the column , is it reliant on earthing through this , given that there is a plug routed through the sensor.

 

[LostKiwi]

Would anyone have a wiring diagram for the steering angle sensor , would there be a problem testing this on a diagnostic with the airbab and horn off the column , is it reliant on earthing trough this given that there is a plug routed through the sensor.

The chances of two steering angle sensors having the same problem are small.
If the sensor doesn't incorporate the click spring that could be a possibility.

 

[Boatlon]

The chances of two steering angle sensors having the same problem are small.
If the sensor doesn't incorporate the click spring that could be a possibility.

Not sure , well I am sure there isn't a spring on this sensor. Just a ribbon that winds up internally and unwinds , there is a fixed mounting provide you mount it with two full turns either way.

 

[Boatlon]

Many thanks for your reply by the way ,not much help out here , so I appreciate your input , the car has been off road for 5mths!

 

[LostKiwi]

The ribbon cable is the clockspring. It's named the clockspring because it looks like one.
If it's the same as my Smart one the horn and airbag wires pass through.
I'm not familiar with A classes I'm afraid but have you traced the wires from the column to see where they go and checked for chafing? How do the plug connectors look? All clean?