Car electrical diagnostics
Visual inspection
* Inspect the battery and terminals for corrosion, looseness or damage.
* Check wiring and connectors for damage, corrosion or looseness.
* Examine fuses and relays for burnout or damage.
Electrical tests
Multimeter
* Voltage Measurement: Measure the voltage at your battery, alternator and other critical components to determine if they are operating properly.
* Current Measurement: Check the current drawn by components to determine if there are leaks or overloads.
* Circuit Test: Use a multimeter to check wiring continuity and identify opens or shorts.
OBD-II scanner
* Connect an OBD-II scanner to read trouble codes and get real-time sensor data.
* Trouble codes may indicate specific problems with electrical systems.
Other tests
*Battery Load Test: Check the battery’s ability to provide the current required to start the engine.
* Alternator Test: Make sure the alternator is producing enough voltage to charge the battery and power the electrical systems.
* Ignition system test: Check the spark plugs, ignition coils and ignition distributor for malfunctions.
Troubleshooting
* Use test results to identify faulty components or systems.
* Determine the root cause of the problem by looking for common points of failure or related problems.
* Make a repair or replacement plan.
Adviсe
* For accurate diagnosis, use high quality equipment.
*Follow manufacturer’s instructions when performing tests.
*If you are unsure of your skills, consult a qualified mechanic.
* Carry out electrical diagnostics regularly to catch problems early.
* Do not attempt to repair electrical systems unless you have the appropriate knowledge and experience.