Electronic Control Module
Each Dura-Spark II module has 6 wires (a 2-wire connector and a 4-wire connector). See Fig 1. The red and white wires are the ignition feed wires - the white for cranking, the red after the engine begins to run. The red wire circuit contains a 1.1 ohm wire resistor. The current in the primary circuit of the ignition coil is turned off and on by the green wire. The orange and purple wires transmit signals to the module from the armature and pick-up coil in the distributor. The black wire is used to ground the distributor. The module is "ON" whenever the ignition switch is in the "RUN" or "START" position.