RatLabGuy
You look like a monkey and smell like one too
- Joined
- May 18, 2005
- Location
- Churchville, MD
Lets say that, er, hypothetically, you needed to bypass the optical sensor system on an electric garage door opener.. lets just say for diagnostic purposes (e.g., a sensor is broken but you'd like to know if the rest of teh system is still usable).
FYI, Sears Liftmaster from 2003ish.
In ths isystem, the "pos" wires from both sensors are tied together, as are neg. Removing altogether leads to a diagnostic code of "connection broken". Placin ga jumper wire between pos and neg gives different code, "sensor shorted", still won't work.
To me thsi suggests it is looking for a specific load on the line? E.g., need soem resistance? Is that right?
Or more directly... how can you bypass this??
FYI, Sears Liftmaster from 2003ish.
In ths isystem, the "pos" wires from both sensors are tied together, as are neg. Removing altogether leads to a diagnostic code of "connection broken". Placin ga jumper wire between pos and neg gives different code, "sensor shorted", still won't work.
To me thsi suggests it is looking for a specific load on the line? E.g., need soem resistance? Is that right?
Or more directly... how can you bypass this??
