Testing and Inspection of Wastegate for 5000CS Turbo (1987)
![background image](/audi/5000cs_turbo/l5-2226cc_2.22l_sohc_turbo_(mc)/Page-1560003.png)
If tester is OFF:
-
Connect multimeter US 1119 between blue/black wire of frequency valve harness connector and ground
-
Approximately 12 Volts
If measurement NOT OK
-
Check for open circuit in wiring using wiring diagram
If measurement OK
-
Remove cover for control unit located in front passenger footwell
-
Unplug control unit harness connector
-
Using multimeter US 1119, check for continuity between terminal 19 of control unit harness connector and green/yellow wire of frequency valve
harness connector
-
approximately 0.2 ohms
If measurement NOT OK
-
Check for open circuit in wiring between connectors using wiring diagram
If wiring OK
-
Replace control unit