VAC scale on multimeter?? - testing knock sensor

[blunk_blind]

only have a a DCV scale, ohms and resistance on mine. Im trying to test the knock sensor from the APC box. the bentely says i need to set it to VAC but i dont have one. Wondering if there is another way i can do it.
right now i only have an older bentely manuel, could anyone tell me the correct pins and the voltage readings i need to check the knock sensor.

much appreciated!

K

[scubasaab]

No ACV scale on the meter??
Check the female connectors on the meter and you may find there is a wiring config for ACV. Id be really surprised if it didn't have one. Check the scale ring carefully as well. I'll bet it's there somewhere.

[grif900]

I am shure you need to look for 0-1 volt DC, fluctuating.

[KurBads]

I tried metering knock sensor but the voltage is so small that I wasn`t able to see it on my STANDARD multimeter ...

readings moved as I just approached with socket extension to tap on it ... like creating magnetic ...