Required tools and materials:
* Wrench set
* Screwdrivers
* Voltage tester or multimeter
*Car wiring diagrams
* Electrical insulating tape
* Wire ties
* Wire stripper
* Wire connectors (as needed)
Procedure:
1. Security
* Park the car on a level surface and turn off the engine.
* Disconnect the negative terminal of the battery.
* Wear safety glasses and gloves.
2. Problem identification
* Describe the problem and try to identify the affected area.
* Check fuses and relays associated with the faulty system.
* Study vehicle wiring diagrams to find the appropriate system diagram.
3. Electrical wiring diagnostics
* Use a voltage tester or multimeter to check the voltage and continuity on the wiring.
* Check wire connections for signs of corrosion or looseness.
* Check the contacts and connectors for damage or dirt.
4. Repair
* Once you have identified problem areas, repair them accordingly:
* Clean or tighten the connection terminals.
* Replace damaged wires.
*Repair short circuit or short to ground.
* Replace faulty components (eg sensors, switches).
5. Assembly
* Replace all removed components and carefully reassemble electrical wiring.
* Secure the wires with zip ties so that they do not fray and are protected.
* Insulate exposed wires with electrical tape.
6. Test
* Connect the negative terminal of the battery and start the engine.
*Check if the problem is resolved.
*Use a voltage tester to make sure the system is working properly.
7. Completion
* Remove all tools and materials.
* Continue to monitor the repaired system to ensure the problem does not occur again.
Adviсe:
*If you are unsure of your skills, seek assistance from a qualified mechanic.
* Do not attempt to repair high voltage wires.
* Be careful when working with electricity.
* Be careful when using cutting tools.
* Dispose of old wires and components properly.