Chery T21 2014 Service Manual page 415

06 - SQR484F ENGINE MANAGEMENT SYSTEM
Ignition Coil
Description
The ignition coil converts the low voltage of primary winding into the high voltage of secondary winding, and
discharges spark plug electrode to produce sparks which will ignite the combustible air-fuel mixture in
cylinder.
Operation
An ignition coil consists of primary winding, secondary winding, iron core and housing etc. The primary and
secondary windings form an induced circuit. An instant induced voltage generated by turning primary circuit
switch on and off and an instant high voltage generated by secondary circuit will cause spark plugs to
discharge, thus igniting the combustible air-fuel mixture. The primary winding will recharge when its ground
passage is on through an Engine Control Module (ECM) signal. If Engine Control Module (ECM) cuts off the
control signal to primary winding circuit, it will stop charging and a high voltage will be induced in the
secondary winding.
06
Removal & Installation
(See page 14-10)
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Chery Automobile Co., Ltd.