Hi All,

Does anyone have decent wiring digrams for the '04 ZS 120+ ?? My Haynes diagrams are wrong. Specifically, it says there's one green/blue wire carrying 5v to the temperature sensor and the sensor applies a variable resistance between this an earth to indicate temp.

My sensor has two wires going to it - a black/pink and a green/pink. One of them does indeed carry 5v. Haynes doesn't say what values the sensor should put out. Mine puts out 0.2 ohms when hot - seems a bit low! Don't know what it puts out when cold - haven't tested that yet. When the sensor puts out 0.2 ohms (or if I short-circuit the wires) the gauge is still showing it's minimum reading.

Without appropriate diagrams/info I can't trace the fault down. Can't see which fuse covers the temp gauge either.

If the sensor is putting out 0.2 ohms (practically short-circuit) and the gauge still shows it's minimum reading it must be the wiring/fuse/gauge?? But surely the sensor resistance shouldn't go as low as that for a 'normal' temperature engine either??

TIA,
Dave

The sensor you describe is not the one for the guage. The one you want is mounted verticaly beneath that one in the same housing and is easily missed.

Hope that helps.:)

Hi All,

Does anyone have decent wiring digrams for the '04 ZS 120+ ?? My Haynes diagrams are wrong. Specifically, it says there's one green/blue wire carrying 5v to the temperature sensor and the sensor applies a variable resistance between this an earth to indicate temp.

My sensor has two wires going to it - a black/pink and a green/pink. One of them does indeed carry 5v. Haynes doesn't say what values the sensor should put out. Mine puts out 0.2 ohms when hot - seems a bit low! Don't know what it puts out when cold - haven't tested that yet. When the sensor puts out 0.2 ohms (or if I short-circuit the wires) the gauge is still showing it's minimum reading.

Without appropriate diagrams/info I can't trace the fault down. Can't see which fuse covers the temp gauge either.

If the sensor is putting out 0.2 ohms (practically short-circuit) and the gauge still shows it's minimum reading it must be the wiring/fuse/gauge?? But surely the sensor resistance shouldn't go as low as that for a 'normal' temperature engine either??

TIA,
Dave

http://pjwrover.webs.com/?referer=AffiliateNetwork (http://pjwrover.webs.com/?referer=AffiliateNetwork)

graphic... you're a genius! Many thanks. I had made the mistake of believing what was in my Haynes manual and hadn't spotted the second sensor. When I took a look at the second sensor the wire was just hanging off it, disconnected! Refitted and the gauge is working fine.

MARCOVH - thanks for the link, especially the cam-belt replacement vid - superb!

Cheers,
Dave

Glad you got it sorted!