Home Made Circuits and Schematics

Circuit diagram with Parts list. Notes. Assemble the circuit on a good quality PCB or common board. Place the circuit on a waterproof place in the dashboard. The switch S1 is the reverse gear switch of the car. Before attempting the circuit,have a good Hopefully this clears things up for some of you out there, and for those who may have been initially intimidated by the wiring. Color coded wiring diagram building an 'Auto Reverse Polarity Circuit'. #1 Wire connects to 'NC' on Switch A #2 Wire I would like the relay to activate and turn on the lights when either a) I put the vehicle into reverse or b) I flip a switch I've installed in the cab (SPST). This is the wiring diagram I tried using: With this wiring configuration, the backup lights work When you close the circuit on the reversed plugs, the polarity is reversed. See Wiring the switch for a good diagram. Polarity reversing switches are used in several different contexts. I will describe a sample application. suppose two wires A & B may turn off the power and reverse the position of these wires and the switch should work correctly from either the Dimmer switch or the plain switch. Here's a link with a diagram, which might not exactly match your circuit configuration, but you can also The wiring diagram for a two-way switch starts runs to the destination being supplied with power. The switch ground is attached to the switch. Basic two-way switches can be modified by reversing the load and the switch. In the case of a light bulb .

right---that the reverse lamp switch in these old girls was on the shifter and not the Torqueflite? To get the wiring to the transmission, you need to route them through the bulkhead connector, see diagram "A" top of page, 6 and 7 of the bulkhead connector. As far as the OP problem, some transmissions have the switch mounted externally, worth a check. I don't have access to a wiring diagram for this vehicle. But the reverse light switch may ground the circuit instead of supplying power to it. So if you i have a 1980 silverado that the previous owner removed the transfer pump and most of the wiring diagram blown up where i can see it the first cavity is blank the next two get the reversing power one positive and the other negative or the Compare all products in Pololu Power Switches. Printable schematic diagram of the Big MOSFET Slide Switch with Reverse Voltage Protection. Dimension diagram of the Pololu Big MOSFET Slide Switch with Reverse Voltage Protection (389k pdf) .