Test 33 - Condenser Fan Output

Test 33

Electrical Diagram - Condenser Fan:

Condenser fan circuit diagram

1. 12V from EFI main relay.
2. Condenser fan timer unit.
3. Fan relay.
4. 12V battery feed.
5. Trigger, from ECU.
6. 12V from fan relay.
7. Fuse A1 - 2O amp.
8. Fuse A2 - 20 amp.
9. Fan motors


Operational Check


1. Start engine.
2. Move air con/heater control to air conditioning position.
3. Check condenser fans, if working the condenser fan relay and wiring to the fans is functioning.
4. If not working check fuses A1 and A2, and the voltage between connections 86 on fan relay and earth. If 12 volts is not present, check wiring back to air con switch.
5. If 12 volts is present, but fans NOT working, short out connections 30 and 87 on fan relay. If fans work fit new relay. If fans NOT working, check supply to fan relay from main harness.
6. Apply a 12 volt supply for at least two seconds to connection 5 on fan timer within SIX SECONDS of switching engine off. The condenser fans should run for approx. 9.5 minutes, and switch off.

If the fans do not work after applying voltage to timer, short out connections 4 and 8 on fan timer, if fans work fit new fan timer. If fans do not work, check wiring.