Checking Coolant Temperature Sensor

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Engine Start Verification

Courtesy of VOLVO CARS OF NORTH AMERICA.

Start engine.
Read off coolant temperature in the heater.
Check the engine coolant temperature (ECT) reading is correct. Compare with the actual coolant temperature of the engine.

Fig 2: Identifying VCT2000
Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the temperature reading OK?

YES
Refer to Checking Component And Cables
NO
Refer to Checking Component And Cables