Abs problem

[Vinnysian]

Hi got mercedes w203 c230 kompressor
Had the abs light on last week abs would kick in at low speeds.had code p2400 and p1860.both to do with right rear wheel rpm signal.i change the abs ring yesterday and the same problem.same codes.
Any one the problem????
Thanks

 

[Uncle Benz]

Did you replace the reluctor ring, the sensor or both items?

 

[Vinnysian]

I replace the the ring and sensor.
Still the same problem.

 

[Uncle Benz]

Check the wiring back to the abs module next

 

[Uncle Benz]

You’ve not fitted a new tyre recently?

 

[Vinnysian]

Ok il check

 

[Vinnysian]

Yea I put 4 tyres about 3 weeks ago
After that it started

 

[Uncle Benz]

Check the sizes are all correct

 

[Vinnysian]

Got 225 45 17 on front
And 245 40 17 on rear

 

[Uncle Benz]

Measure the diameters, check you don’t have a rogue tyre on the right rear, especially not a 245/45/17. I’ve seen that before. Maybe swap the rear tyres left/right, see if the fault moves

 

[Vinnysian]

I try that

 

[cadman777]

Measure the diameters, check you don’t have a rogue tyre on the right rear, especially not a 245/45/17. I’ve seen that before. Maybe swap the rear tyres left/right, see if the fault moves

Same with VW.
They have a "Reset" button in the glove box to reset when tires are changed or if they're not the same.