Ignition Control Module: Testing and Inspection

Checking ignition switching function from control unit

Requirements

Ignition coil OK
Electrical checks (wiring and component checks) OK






- connect digital multimeter US 1119 between terminal 1 (-) and terminal 15 (+) of ignition coil
- disconnect Hall sender (on distributor)
- switch ignition ON






- hold center wire of connector from distributor to ground for approx. 3 seconds
displayed voltage must increase briefly to approx. 4.5 volts

If NO
- replace control unit