Electronic Control Module

Each module uses 6 or 7 wires. The Blue wire, if equipped, is a fusible link that protects the electronic control module. The Red and White wires are ignition feed. The White wire is ignition primary circuit while engine is cranking, the Red wire is ignition primary circuit while engine is running. The Red wire contains the ballast resistor.

The primary current is turned on and off by the electronic control unit through the Green wire between module and coil. The Orange and Purple wires (Violet wire on AMC) transmit signals to the module from the distributor stator/magnetic pick-up coil. The Black/Green wire (Black wire on AMC) is the distributor ground circuit.