Re: Pusbutton schematics.

Posted by BH On 2011/9/10 10:18:43

Randy -

I did expect there would be some legitimate cases when the vehicle needed to be moved with ignition off (e.g. - pushing, towing, etc.). Although there automatic car washes of that type are still in use, I don't use 'em - at least not with the Packards.

Yet, you've given me pause for further thought.

Splicing the yellow and tan wires, per STB 56T-25, merely replaces the connection that was previously made when the park relay was energized - effectively restoring the circuit as it was intended prior to actual production (per SC Vol. 29, No. 11). Splicing the white, red/white, and orange wires, per same STB, merely replaces the point at which all three wires met - at a common terminal on the relay. However, why do they add a 9A fuse for the white wire (which feeds power to the control panel buss bars), when none was required previously?

BTW, in comparing diagrams among the various articles/bulletins, it appears that WHITE wire was once YELLOW on some cars - perhaps only the early production cars that were built with the control (battery) relay (which was to be eliminated in the field, per SC Vol. 30, No. 1.

For those cases when I need to bypass the auto-park relay function, I'm thinking of installing a remote DPDT switch wired in such fashion so as to open the circuit provided by the green feed wire from the breaker to the park relay, yet complete the circuit between the tan and yellow wires.

That may seem like an additional layer of complication, but it's really not much more than the factory provision of a cut-off switch, or even the manual control kit, for the Torsion-Level system.