Checking resistance of engine coolant temperature sensor

Check the resistance of the engine coolant temperature sensor. For the resistance values, see Components resistance values .

Remedy as necessary.

Other information: 

• To access or replace the engine coolant temperature sensor:
  • For cars manufactured up to w38 2001 inclusive, see Overheat protection thermostat / flame sensor / engine coolant temperature sensor, replacing
  • For cars manufactured from w39 2001 inclusive, see Replacing the overheat protection thermostat, the flame sensor and the engine coolant temperature sensor .
• For other values, see Signal specification .

Fig 1: Identifying Engine Coolant Temperature Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohm Meter

Courtesy of VOLVO CARS OF NORTH AMERICA.

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  Refer to Verification