Checking The Connectors For The Control Module And Wheel Sensor

WARNING: This page is about a different car, the 2007 Volvo XC90, 2006 Volvo XC90, 2005 Volvo XC90, 2004 Volvo XC90, and 2003 Volvo XC90. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS CORPORATION

Fig 2: Connecting Connector

Courtesy of VOLVO CARS CORPORATION

Ignition off
Check the wheel sensor and control module connectors. Check for contact resistance and oxidation
Reinstall the components, reconnect the connectors etc.
Raise the car so that the relevant wheel is clear of the ground
Ignition on
Read off the wheel speed for the relevant wheel.
Spin the relevant wheel and check that the wheel speed is updated.

If the wheel speed is updated, the cause of the fault was loose connections in the connectors for the control module or wheel sensor.

NOTE:
The speed signal will only be active for approximately 20 seconds. Activate the function again if necessary.

Other information
- To disconnect the wheel sensor connector, see WHEEL SENSOR FRONT, REPLACING
- To disconnect the connector for the brake control module (BCM), see CONNECTING THE BREAKOUT BOX, BRAKE CONTROL MODULE (BCM)
- see CHECKING WIRING AND TERMINALS
Fig 3: Identifying VCT2000 Diagnostic Tool Symbol In VIDA
Courtesy of VOLVO CARS CORPORATION

Is the wheel speed updated?

YES
OKAY: Troubleshooting has been completed.
NO
see CHECKING WIRING AND SENSORS