- Verify problems issues
- Verify any connected symptoms. try this by performing operational checks on parts that are in same circuit.
- Analyze the symptoms. Use the wiring diagrams to see what the circuit is doing, where the problems issues possibly is happening and where the diagnosis can continue.
- Isolate problems issues area
- Repair problems issues
- Verify correct operation.
* Voltmeter: this a voltage measurement tools. Note, connect the black result in known sensible ground and red result in the positive side of the circuit.
* Ohmmeter: this a circuit’s resistance measurement tools. Note that low or no resistance during a circuit means that sensible continuity.