Corvette V8-5.7L VIN G (1997)
Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection
SCAN TOOL DIAGNOSIS
The scan tool displays engine coolant temperature in degrees. After engine startup, the temperature should rise steadily to about 90°C (194°F) then
stabilize when thermostat opens. If the engine has not been run for several hours (overnight), the engine coolant temperature and intake air
temperature displays should be close to each other.
ECT TROUBLE CODES
When the PCM detects a malfunction in the ECT sensor circuit, the following DTCs will set:
^
DTC P0117 circuit low.
^
DTC P0118 circuit high.
^
DTC P0125 excessive time to Closed Loop.
^
DTC P1114 circuit intermittent low.
^
DTC P1115 circuit intermittent high.
SPECIFICATIONS
Refer to Specifications to check for sensor resistance values relative to temperature.
