display AUDI A4 2000 B5 / 1.G AFC Engine Coolant Temperature Sensor Checking Workshop Manual
Page 1 of 3
28-25
 
     
Engine Coolant Temperature 
(ECT) sensor, checking 
     
Notes:  
     
To functionally check the Engine Coolant 
Temperature (ECT) sensor   Repair Group 01, 
Read measuring value block, display group 
001, display field 1. 
     
Component locations   page 28
-1 .
     
-  Disconnect ECT sensor harness connector.
    
-  Switch Fluke 83 multimeter to resistance range and measure between 
ECT sensor terminals 1 (signal) and 3 (GND). 
    
Specified values: 
At approx. 20 C (68 F): approx. 2500 At approx. 80 C (176 F): approx. 330 
Pa
ge 1 of 3 En
gine Coolant Tem
perature 
(ECT
) sensor, checkin
g
11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.28.7