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Home >> Oldsmobile >> 1995 >> Achieva SC, 2.3 D, Standard >> Repair and Diagnosis >> Steering >> Power Steering >> Steering System - Variable Effort >> Diagnosis & Testing >> Using Tech 1 >> * Mode F4 (ABS Test)

* Mode F4 (ABS Test)

In this mode, Tech 1 performs hydraulic modulator assembly testing to help isolate problems during trouble shooting. Mode is also used for manual control of hydraulic modulator motors, which is used before brakes are bled.