What causes no spark on 1984 plymouth reliant?

No spark in a 1984 Plymouth Reliant can be caused by several issues, including a faulty ignition coil, a malfunctioning ignition module, or problems with the distributor cap and rotor. Additionally, issues with the ignition switch, wiring, or the crankshaft position sensor could also prevent spark generation. It's important to systematically check these components to diagnose the exact cause. Testing the ignition system with a multimeter can help identify the fault.