TTS Quattro Roadster L4-2.0L Turbo (CDMA) (2009)
Test procedure
Start diagnosis
-
Connect the scan tool.
-
Switch the ignition on.
-
Using the scan tool, check the coolant temperature:
If the specified value is not obtained:
-
Continue test according to the following table:
If the specified value was obtained:
-
Start the engine and let it run at idle.
The temperature value must increase uniformly in increments of 1.0° C.
If the engine shows problems in certain temperature ranges and if the temperature does not climb uniformly, the temperature signal is intermittent.
-
Replace the the Engine Coolant Temperature (ECT) Sensor ( G62).
Checking internal resistance
-
Disconnect the Engine Coolant Temperature (ECT) Sensor (G62) electrical harness connector - arrow -.
-
Using a multimeter, check the Engine Coolant Temperature (ECT) Sensor (G62) terminals 1 to 2 for resistance.