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Home >> Nissan-Datsun >> 2012 >> Sentra Base, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Control System - Component Testing (Qr25DE)) >> Ignition Signal >> Component Description >> Ignition Coil & Power Transistor
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Ignition Coil & Power Transistor

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The ignition signal from the ECM is sent to and amplified by the power transistor. The power transistor turns ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil secondary circuit.

Fig 1: Identifying Ignition Coil Harness Connector
G04926263Courtesy of NISSAN NORTH AMERICA, INC.