Radiator Cooling Fan: Testing and Inspection

Radiator fan, checking

Test requirements





^ Fuse No. 34 and Fuse No. 42 OK
^ Coolant Fan Control (FC) thermal switch -F18- OK

Test sequence
- Disconnect 4-pin harness connector from coolant Fan Control (FC) thermal switch -F18- located on lower coolant hose (bottom right).
- Switch ignition on.





- Bridge terminal -1- and terminal -2- of harness connector using auxiliary cables from VW1594.
^ Coolant fan -V7- must run on 1st speed





- Bridge terminal -3- and terminal -4- of 4-pin harness connector using auxiliary cables from VW1594.
^ Coolant fan -V7- must run on 2nd speed
- If 1st or 2nd fan speed does not run:
- Locate and repair open circuit using wiring Diagram.
- If no open circuit can be found:
- Replace coolant fan -V7-.