Subaru Workshop Service and Repair Manuals

Ignition Coil: Testing and Inspection

Ignition Coil Terminals

1.

Disconnect coil connector and remove coil from engine.

2.

Measure resistance of coil primary and secondary windings as follows:

PRIMARY

Terminal(connector): Resistance:
F42(BW) & F45(Y) 

0.84 - 102 Ohms

SECONDARY

Terminal:

Resistance:

F42(BW) & secondary  8k - 12k Ohms