Checking the status

Fig 1: Engine Start Verification

Courtesy of VOLVO CARS OF NORTH AMERICA.

Check whether the fault is permanent or intermittent by reading off the signal from the engine coolant temperature (ECT) sensor.

NOTE:

In order for the correct values to be shown, reading of the temperatures must take place at the moment of start.

Start the engine.

Check that the engine temperature is reasonable.

The fault is permanent if the signal is incorrect. The fault is intermittent if the signal is correct.

HINT: Remove the engine temperature sensor, but leave the connector in place. Leave the engine hood open, then the engine temperature sensor shall show the same temperature as outdoor temperature.

Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Engine Coolant Temperature (ECT) Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

Continue
Refer to Checking the component and wiring