Hydraulic unit, replacing: Preparation
Disconnect the battery lead
See Battery, disconnecting .
WARNING:
Never, under any circumstances, open the ABS hydraulic modulator. Reassembling it requires special equipment and facilities.
NOTE:
An ABS modulator for ABS has only eight
valves while an ABS modulator for ABS and
STC (stability and traction control) has ten
valves. The method for replacing the unit is the same for both types. Check thoroughly when installing the new unit that the unit is the correct type.