16B Distributor SYNC Pick-Up Signal Wire

Blue Logic Module Connector:

1. Connect a digital voltmeter between cavity 17 of logic module and ground, then turn ignition switch to Run position.
2. If voltmeter reads seven volts or more, locate and repair open in wire between cavity 17 and sync pickup.
3. If voltmeter indicates no voltage, check for a damaged terminal in cavity 17. If terminal is not damaged, replace logic module.