Testing Fan Switch

[Nova_Tek]

Bought a multimeter today to test a few things out on my dads Cav as the fan won't come on.

I removed the fan switch to test by having a container with cold water and another container with boiling water and to test to see if the reading changes. What do I need to set the multimeter to for me to test the readings (really can't remember )?

[mowgli]

ohms

[Nova_Tek]

So set the multimeter to ohms, positive probe to brown wire and black probe to brown/white wire. check resistance in cold water then hot?

(fan swicth is off the car)

[mowgli]

yup, when cold it should read very high, and when warm, it should read very close to zero

[Nova_Tek]

Cheers Mowgli, will try that out now.

[mowgli]

just remember not to get caught by your mum as you lower it into the kettle, as I did

[Jon_nova1]

LMAO

You must spread some Reputation around before giving it to mowgli again

sorry

[Nova_Tek]

just remember not to get caught by your mum as you lower it into the kettle, as I did

it crossed my mind but I put it in a plastic container instead.

Tested the sensor and the fan switch showed .585 ohms when cold & .280 when at boiling point.

We also tested the CTS and that came up .45 when cold & 0.03 when boiling point.

+rep for you mowgli

(need to spread the rep )