How do you check a coil for a 2001 Toyota 4Runner 6cylinder?

To check the ignition coil on a 2001 Toyota 4Runner with a 6-cylinder engine, first ensure the vehicle is off and the keys are removed. Disconnect the electrical connector from the coil and use a multimeter to measure the resistance across the primary terminals (should be around 0.4 to 0.6 ohms) and secondary terminals (should be around 8,000 to 12,000 ohms). If the readings are outside these ranges, the coil may be faulty and should be replaced. Additionally, visually inspect the coil for any signs of damage or corrosion.