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Home >> Oldsmobile >> 1991 >> Custom Cruiser >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Diagnosis & Testing >> Using Tech 1 >> Automatic Tests

Automatic Tests

Select AUTO TEST. Press ENTER when ready. Valves can be heard and felt cycling from hydraulic control unit; have assistant verify that pump motor turned on. See DIAGNOSTIC CHARTS if codes are set.