Checking shift solenoid S3

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Check the transmission and control module connectors. Check for contact resistance and oxidation. See Contact resistance and oxidation
• Ignition on
• Activate shift solenoid S3.

  A "click" should be heard when the solenoid is activated. Use a stethoscope to hear the click more clearly.

  There is a mechanical fault if the solenoids do not click. If the solenoid "clicks" the cause of the fault is contact resistance and oxidation.

  Other information 

  • To access the transmission connectors, see Connectors, transmission, disconnecting / connecting
  • To access the control module connector, see Transmission control module (TCM), replacing .
  Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Was there a click from the solenoid? 

• YES 

  Refer to Checking noise in the transmission 

• NO 

  Refer to Checking the wiring and component