Checking the wiring

Fig 1: Identifying Ignition Switch OFF Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Connect the breakout box.

  Check the wiring between the connector for the active yaw control sensor

  • terminal #1 and control module terminal #25 (terminal #A25)
  • terminal #2 and control module terminal #29 (terminal #A29)
  • terminal #3 and control module terminal #6 (#A6)
  • terminal #5 and control module terminal #39 (terminal #A39).

  check for an open-circuit or short-circuit to ground and for a short-circuit to each other.

  Also check that the active yaw control sensor is correctly installed and that the bracket is secured.

  If the cables are OK, try a new active yaw control sensor.

  Other information 

  • To connect the breakout box, see
  • To access and replace the active yaw control sensor, see ACTIVE YAW CONTROL SENSOR, REPLACING (GASOLINE (NOT CNG/LPG) M56 AND M58) or ACTIVE YAW CONTROL SENSOR, REPLACING (B5254T4 M66AWD)
  • For information about signals, see Signal specification, brake control module (BCM) with DSTC (dynamic stability and traction control)
  • See Contents .
  Fig 2: Identifying Active Yaw Control Sensor Connector Terminals

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 3: Identifying Ohmmeter

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 4: Identifying Brake Control Module & Active Yaw Control Sensor

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Were there any faults in the wiring or in the installation of the active yaw control sensor? 

• YES 

  Refer to Verification 

  Refer to Checking diagnostic trouble codes (DTCs)