audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Radiator Cooling Fan Temperature Sensor / Switch > < Engine Coolant Temperature (ECT) Sensor -G2- Signal, Checking|Page 1818
Page 3
background image

-

Check wiring for open circuit or short circuit to B+ or Ground between 2-pin harness connector and ECM.

2-pin ECT sensor connector terminal

VAG1598/19 test box socket (ECM terminal)

1

A23

2

A19

If no wiring or sensor malfunctions are found:

-

Replace ECM and generate new readiness code. Refer to "Monitors, Trips and/or Drive Cycle (Readiness Code)/Generating, Readiness Code" 
See: Powertrain Management/Computers and Control Systems/Testing and Inspection 

Radiator Cooling Fan Temperature Sensor / Switch > < Engine Coolant Temperature (ECT) Sensor -G2- Signal, Checking|Page 1818