Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Ignition Control Module: Description and Operation

PURPOSE
Ignition module is a Transistorized Ignition Module 3-pin type (TI3) that relays spark control signals from Electronic Control Assembly (ECA) to ignition coil. Module controls current through coil primary winding.

LOCATION
Left side engine compartment.

OPERATION
The module turns current on between firing points to build up a magnetic field around the coil windings. It then turns the current off when signaled from the pulse generator.