Checking Cable And Component

Check connector C (22-pin) for the transmission control module (TCM). Check for contact resistance. Check for oxidation.

Try a new oil temperature sensor if no fault is found in the connector.

Remedy as necessary.

Other information 

• To disconnect the transmission connectors, see TRANSMISSION CONTROL MODULE (TCM):
  • For B5254Tx, see: TRANSMISSION CONTROL MODULE (TCM) (B5254T3, AW50/51 AWD; 2005-2007) or TRANSMISSION CONTROL MODULE (TCM) (B5244S4, AW55-50/51SN; B5244S7, AW55-50/51SN; 2005-2010).
  • For B5244Sx, see: TRANSMISSION CONTROL MODULE (TCM) (B5254T3, AW50/51 AWD; 2005-2007) or TRANSMISSION CONTROL MODULE (TCM) (B5244S4, AW55-50/51SN; B5244S7, AW55-50/51SN; 2005-2010).

    For D5244T8 and D5244T9, see TRANSMISSION CONTROL MODULE (TCM) (B5254T3, AW50/51 AWD; 2005-2007) or TRANSMISSION CONTROL MODULE (TCM) (B5244S4, AW55-50/51SN; B5244S7, AW55-50/51SN; 2005-2010).

• See COVER, CONTROL SYSTEM (B5244S4, AW55-50/51SN; B5244S7, AW55-50/51SN; 2005-2010) or COVER, CONTROL SYSTEM (B5254T3, AW50/51 AWD; 2005-2007)
• See SIGNAL SPECIFICATION
• See COMPONENT RESISTANCE VALUES
• See CONTENTS

Fig 3: Identifying Connector C, Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 4: Identifying Ohm Meter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 5: Identifying Oil Temperature Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

Refer to RESETTING THE TRANSMISSION FLUID CHANGE COUNTER