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Home >> Volvo >> 2008 >> S40 T-5, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 48 (Anti-Lock Brake System (Abs) Diagnostic Trouble Codes (644 Body)) >> Abs-331: Faulty Wheel Sensor Signal. Faulty Signal From At Least One Wheel (2001-2004) >> Faulty signal from at least one wheel >> Checking wheel sensors

Checking wheel sensors

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.

Check that the wheel sensors are installed securely against the shaft/hub. Remove any dirt between the sensor and the mating surface.

Fig 1: Wheel Sensor
GLL116246Courtesy of VOLKSWAGEN UNITED STATES, INC.

Are the wheel sensors correctly installed?