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Home >> Volvo >> 2009 >> S60 Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Accessories Control Systems >> Control Modules - Design And Function - 1 Of 4 >> Brake Control System (2001) >> ABS Diagnostic Functions >> Description Of Activation >> Pump Motor

Pump Motor

Activating hydraulic modulator pump motor.

The pump motor should "hum".