Testing the function of the ABS hydraulic modulator

WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Ignition OFF

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Fig 2: Connecting Connector

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Fig 3: Connecting Control Module

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Ignition off.
Reinstall the connectors, components etc.
Test drive the car at a speed above 6 km/h or 15 km/h. The control module will test the valves and pump motor at 6 km/h.

Stop the car. Do not switch off the ignition.

Connect VCT 2000.

Read off the diagnostic trouble code (DTC) status.

Fig 4: Identifying VCT2000 Diagnostic Tool Symbol In VIDA
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Fig 5: Checking Freewheel Function (Poly V-Belt Removed)
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Is the status permanent?

YES
Refer to Checking the control module
NO
Refer to Checking for contact resistance and oxidation