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Checking The Status

Fig 1: Identifying Ignition ON

GLL101051

Courtesy of VOLVO CARS CORPORATION

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

Check that the signal is within its permitted range.

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

Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA
Courtesy of VOLVO CARS CORPORATION

Fig 3: Identifying Engine Coolant Temperature (ECT) Sensor
Courtesy of VOLVO CARS CORPORATION

Continue
Refer to CHECKING THE COMPONENT AND WIRING