Wheel Lock-Up
- ABS valve failure may be caused by a defective hydraulic outlet (dump) valve. To correct this condition, refer to TEST F for left front valve under CIRCUIT TESTS, TEST H under CIRCUIT TESTS for right front valve, or TEST K for rear axle valve under CIRCUIT TESTS.
- A rear brake mechanical failure may be caused by damp or contaminated rear brake linings, stuck or leaking wheel cylinders, rear brakes adjusted to tight, parking brake not releasing or leaking rear axle seal. To correct this condition, inspect rear brakes and repair or replace components as necessary.