Checking transmission fluid temperature sensor

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Check the control module connector and transmission connector D. Check for contact resistance and oxidation according to Contact resistance and oxidation . Remedy if necessary
• Reconnect the control module and transmission connectors
• Ignition on
• Read off the oil temperature.

  Check that the temperature is within its permitted range.

  Compare with the transmission temperature.

  If the transmission temperature is within its permitted range, the cause of the fault was contact resistance or oxidation in the control module or transmission connector.

  Other information: 

  • To disconnect the control module, see Transmission control module (TCM), replacing
  • To disconnect the transmission connectors, see Connectors, transmission, disconnecting / connecting .
  Fig 2: Identifying 8-Pin Transmission Connector Terminals

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

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Was the transmission temperature within its permitted range? 

• YES 

  OKAY:  Troubleshooting has been completed.

• NO 

  Refer to Checking transmission fluid temperature sensor 

Fig 1: Identifying Ignition OFF

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Fig 2: Identifying Connector(s) Reinstallation

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Transmission connector D disconnected.

  Check the temperature sensor. Measure the resistance between transmission connector D terminals #D7 and #D8.

  The resistance must be 4.5-6 kΩ at 20°C.

  Fig 3: Identifying 8-Pin Transmission Connector Terminals

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 4: Identifying Ohms Display

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Was the resistance OK? 

• YES 

  Refer to Checking the wiring and component 

• NO 

  Refer to Checking the cable and component