Radiator Cooling Fan: Testing and Inspection

Radiator fan, testing





Special tools and equipment
^ VAG1594 A or VW 1594 connector test kit
^ Wiring Diagram
Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations





Test requirements
^ Main fuses must be OK
^ Radiator fan thermo switch -F18- OK

Test procedure
- Remove 3-pin connector form radiator fan thermo switch -F18-.





Connector type A
- Bridge contacts -1- and -2- using jumper from VAG1594 A or VW 1594 test kit:





Connector type B
^ Stage 1 for radiator fan -V7- and -V35- must start to run.
- Switch ignition ON.
- Bridge contacts -2- and -3- using jumper from VAG1594 A or VW 1594 test kit.
^ Stage 2 for radiator fan -V7- and -V35- must start to run.

If stage 1 or 2 of radiator fan does not run:
- Use Wiring Diagram for troubleshooting and repair:
=>Electrical Wiring Diagrams, Troubleshooting & Component Locations
If wiring is OK:
- Replace radiator fan -V7- or -V35- as required.