Volkswagen Workshop Manuals
Eos (1F7) V6-3.2L (BUB) (2008)
Sensors and Switches > Sensors and Switches - Cooling System > Engine - Coolant Temperature Sensor/Switch > Coolant Temperature Sensor/Switch (For Computer) > Component Information > Testing and Inspection > Engine Coolant Temperature (ECT) Sensor (on Radiator) G83, Checking > Page 790
Area A: Resistance values 0 to 50 degrees C.
Area B: Resistance values 50 to 100 degrees C.
Range A, 30 degrees C equals a resistance of 1.5 to 2.0 kOhms
Range B, 80 degrees C equals a resistance of 275 to 375Ohms
If any of the specified values was not obtained:
Replace the Engine Coolant Temperature (ECT) Sensor (on Radiator) G83.
If any of the specified values was obtained:
If the manufacturers test box is being used. Perform the following step.
Install the Test Box 105 Pin VAG1598/31.
If the manufacturers test box is not being used. Perform the following step.
Remove the Engine Control Module (ECM) J623.
Using a Multimeter, check the Engine Coolant Temperature (ECT) Sensor (on Radiator) G83 electrical harness connector terminals to the Engine
Engine Coolant Temperature
Engine Control Module (ECM)
(ECT) Sensor (on Radiator)
J623 electrical connector 121
G83 electrical harness
terminals or test box socket
Specified value: 1.5 Ohms Max.
If the specification was not obtained:
Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).
Check the electrical harness connector for damage, corrosion, lose or broken terminals.
If necessary, repair the faulty wiring connection.
If no malfunction is detected in the wiring:
Erase the DTC memory.
Perform a road test to verify repair.
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