Testing ignition coil for 1990 Mazda mx6?

To test the ignition coil on a 1990 Mazda MX-6, first disconnect the negative battery terminal for safety. Remove the ignition coil from the vehicle and use a multimeter to measure the primary and secondary resistance according to the specifications in the service manual. Typically, the primary resistance should be around 0.4 to 2 ohms, while the secondary resistance should range between 6,000 to 15,000 ohms. If the readings fall outside these ranges, the ignition coil may be faulty and should be replaced.