GLI L4-2.0L Turbo (CCTA) (2008)
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Using a jumper wire, connect the Engine Coolant Temperature (ECT) Sensor (G62) electrical harness connector terminals 1 to 2.
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Check the value indicated on the scan tool display.
If the value jumps to approx. 140.0° C
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Switch the ignition off.
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Replace the Engine Coolant Temperature (ECT) Sensor (G62).
If indication remains at approx. -40.0° C:
Checking wiring
If the manufacturers test box is being used, perform the following step.
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Install the test box.
If the manufacturers test box is not being used, perform the following step.
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Remove the Motronic Engine Control Module (ECM) (J623).
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Using a multimeter, check the Engine Coolant Temperature (ECT) Sensor (G62) electrical harness connector terminals to the Motronic Engine
Control Module (ECM) (J623) electrical harness connector T60 terminals for an open circuit or a short to voltage, refer to the chart below.