Finding shorts with this?

[Kid Rock]

(07-12-2017 )snailexpress Wrote:  Depends what make is your truck.
In most modern trucks fan solenoid ON signal and fuel shut OFF signal coming from vehicle computer. Really hard to trace wires under dash with this device.
But not big money to try.

ten four, may be good for chasing down the external part of the harness though? I was going to try and check for continuity from the ecm harness to the fan solenoid/ 12v fuel solenoid with a multimeter... 2009 387 pete... just looking behind the dash disapoints me, such a mess of wires not sheilded and bundled well... i know better now, but seemed like a higher chance of the short being out in the elements rubbing on the frame somewhere? No?