Examination
1. Disconnect the electrical connectors from the ignition coils. Connect an ohmmeter to the ignition coil terminals and check the resistance of the ignition coil winding.
Replacement
1. Remove the ground wire from the battery.
2. Remove the top engine cover.
3. Mark and disconnect electric sockets from coils of ignition.
4. Unscrew bolts of fastening of the coil of ignition and remove the coil of ignition together with a high-voltage wire.
5. Installation is made in sequence, return to removal.