Year of Manufacture *: 2004
( Optional ) Engine Code or CC: Model KDJ120R
C1223 malfunction in abs control system
C1251 pump motor is locked open circuit in pump motor circuit .
Have checked the relays under bonnet and lives etc.
have noticed if I tap the base of the master cylinder that the pump starts to work .
Suspect pump but are there any other checks I could do before condemning a £400 pump . Example is there pressure switches that can stick and would anyone have a info on pin out testing on master cylinder module .
Kind regards
Sherman
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