Checking the connectors

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Check the connectors on the anti-lock brake system module (ABS) and the yaw rate sensors for contact resistance and oxidation.
• Reinstall the components, reconnect the connectors etc.
• Ignition on
• Read off the present value.

  The reading should be approximately 2.5 V.

  Other information: 

  • See Signal specification, ABS/DSTC (dynamic stability and traction control) control module
  • See Replacing the control module for ABS and dynamic stability and traction control (DSTC)
  • See Replacing the yaw rate sensor (1) and the lateral acceleration sensor in the center console (DSTC)
  • See Replacing the yaw rate sensor (2) (DSTC)
  • See Contact resistance and oxidation
  Fig 2: Identifying Yaw-Velocity Sensor

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 3: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 4: Locating Bracket And Screws

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Were the values OK? 

• YES 

  OKAY:  Troubleshooting has been completed.

• NO 

  Refer to Checking wiring and sensors