Radiator Cooling Fan: Testing and Inspection

Radiator coolant fan (vehicles with engine codes AEG, AVH and AZG), checking

Special tools and equipment





^ V.A.G 1594 A Adapter set
^ Wiring diagram

Requirements





^ Main fuses must be OK
^ Coolant Fan Control (FC) Thermal Switch -F18- OK

Work sequence
- Remove left sound insulation tray.
- Disconnect 3-pin connector from Coolant Fan Control (FC) thermal switch -F18-
- Bridge contact -1- and contact -2- of connector with auxiliary cables from V.A.G 1594 A

Connector type A:

Connector type A

Connector type B:

Connector type B

Connector type C:

Connector type C

1st speed for Coolant fan -V7- and Right coolant fan -V35- must run.
- Switch ignition on.
- Bridge contact -2- and contact -3- of connector with auxiliary cables from V.A.G 1594
- 2nd speed for Coolant fan -V7- and Right coolant fan -V35- must run.

If fan 1st or 2nd speeds do not run:
- Locate and repair open circuit.

If no malfunction in wiring is detected:
- Replace Coolant fan -V7- and Right coolant fan -V35-.