ABS WARNING LIGHT ON

[GSTA]

1200gs 55 reg abs warning light has come on 3 times recently always re-sets after switching off/on ignition,when fault is present servo only works on front brake not rear.gs911 reads 24972 pressure in rear wheel circuit is too high, Any ideas THANKS

 

[Bendy toy]

Just a guess - Has the back brake ever had new caliper seals? The pistons could be failing to return after braking.

Mine was binding at about 6 years old. New seals were under £20.

 

[bikemad]

Put bike on center stand see if disc is binding simple