Range Rover ABS Brake system
technical information bulletin:
Range Rover Classic models 1990 through 1995
Range Rover P38a models 1995 through 2002
Range Rover brakes; WABCO ABS brakes
Land Rover manual contains insufficient information regarding system faults.
Aging vehicles are suffering problems not expected when documentation was originally issued.
Forums spread costly mis-information to end-users.
Diagnostic and repair information:
Land Rover GTR
(factory web site)
Getting Comfortable with WABCO ABS (book)
Specific areas of concern:
Hydraulic Booster Unit (modulator) mal-diagnosis
Premature pressure pump failure
Non-diagnosed accumulator (sphere)
Pressure switch test proceedure
Periodic ABS pump relay replacement
Correct system bleed