Engine Coolant Temperature Sensor -G62- Connector Assignment

Procedure 

-- Disconnect the 2-pin connector on Engine Coolant Temperature (ECT) Sensor. Refer to FOR ENGINE CPNB - ENGINE COOLANT TEMPERATURE SENSOR -G62-, REMOVING AND INSTALLING , FOR ENGINE(S) CTUA & CGXB - ENGINE COOLANT TEMPERATURE SENSOR -G62-, REMOVING AND INSTALLING or FOR ENGINE(S) CEUC & CRDB - ENGINE COOLANT TEMPERATURE SENSOR/ENGINE TEMPERATURE CONTROL SENSOR -G62- / -G694-, REMOVING AND INSTALLING - sensor is not removed.

Terminal assignment of the 2-pin harness connector at Engine Coolant Temperature (ECT) Sensor

Fig 1: 2-Pin Electrical Harness Connector & Terminals

Courtesy of AUDI OF AMERICA, LLC

1. Sensor ground (GND)
2. Wire connection from Engine Coolant Temperature (ECT) Sensor to engine control module