In order to check the ignition coil on 1.5L, 1.8L, 2.4L and 3.5L engines, first check the resistance of the primary ignition coil; with the electrical connector unplugged at the distributor, use an ohmmeter to check the resistance between the two terminals of the distributor, making sure not to include the wire harness; for the 3.5L engine check across terminals 1 and 2; the specifications are 0.9-1.2 ohms for the 1.5L, 1.8L and 2.4L engines and 0.5-0.7 ohms for the 3.5L engine. If the reading is outside these values the ignition coil is to be replaced whereas if it is in the range then there are no broken wires or shorts. Use your one test lead and insert it into the secondary ignition coil terminal on the top of the distributor cap. Now touch the second lead to terminal 1 or terminal 2 of the distributor connector. Here the specifications are at 20-29 kilo-ohms for the 1.5L, 1.8L and 2.4L engines and at 9-13 kilo-ohms for the 3.5L engine. If the readings do not match up to the requirements, repeat the process for the ignition coil. For the 2.0L SOHC engine (with the letter "B" at the end of the engine number), as well as the 3.0L SOHC engine, measure the primary ignition coil resistance by unplugging the electrical connector at the coil. Check the resistance between the two terminal. Specifications For The 2.0L SOHC Engine (0.9-1.2 ohms) For the 3.0L SOHC engine (0.72-0.88 ohms). To test the secondary ignition coil, insert one lead into the terminal on top of the cap on the distributor. Touch the second lead to either terminal 1 or 2 on the distributor connector. The specific at which you will get a reading is 20-29 kilo-ohms on the Nissan Maxima 2.0L SOHC. The specification on the 3.0L SOHC engine is 10.2-13.92 kilo-ohms. If the readings are within standard tolerance, and there are no broken wires or short circuits replace the ignition coil. To remove and install the ignition coil, disconnect the negative battery cable. Next, grip the boot and remove the coil wire. Then detach the electrical connectors, remove the retaining screws and the coil from the engine. Fitting is the reverse of removal.