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Home >> Volvo >> 2010 >> V70 Base, 3.2 96 >> Repair and Diagnosis >> Engine Performance >> System >> Differential Electronic Module (DEM), Driver Information Module (Dim), Engine And Engine Control Module (ECM) - Design And Function >> Engine Control Module (ECM) (B6324S2; 2010) >> Design >> Ignition Coils

Ignition Coils

Fig 1: Identifying Ignition Coil
GLL156894Courtesy of VOLVO CARS CORPORATION

The ignition coils supply the spark plugs with high voltage to produce sparks. The engine control module (ECM) controls the ignition coils so that sparks are generated at the correct time. The signal reconnects to the engine control module (ECM) so that diagnostics can be carried out.

Each ignition coil has an integrated power stage.

The ignition coils are in the sparkplug wells above each spark plug.

The control module checks the ignition coils' function using one separate diagnostic lead.

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