Required tools and materials:
* Multimeter
* Set of wrenches and ratchets
* Flat head screwdriver
* Phillips head screwdriver
* Wire terminals
* Electrical tape
* Grease for electrical contacts
Procedure:
1. Safety first:
* Disconnect the negative terminal of the battery.
* Wear safety glasses and gloves.
2. Troubleshooting:
* Use a multimeter to check the voltage and continuity at the appropriate points.
* Look for broken wires, shorts or faulty components.
3. Troubleshooting:
* For broken wires: locate the break and connect the wires with terminals.
* For shorts: Insulate exposed wires with electrical tape or replace damaged areas.
* For faulty components: Replace faulty relays, fuses or other components.
4. Replacement of components:
* Disconnect power from the component that needs to be replaced.
* Remove all fasteners and connectors holding the component in place.
* Install the new component and tighten all connections.
* Connect power and check the operation of the component.
5. Checking and maintaining connections:
* Use electrical contact lubricant on terminals and connectors.
*Tighten all electrical connections to proper torque.
* Inspect wiring for wear or damage and replace if necessary.
6. Battery connection:
* Connect the negative and then the positive terminals of the battery.
* Start the engine and check the operation of all electrical systems.
Safety Tips:
* Do not work on the ignition system while the engine is running.
* Avoid contact with moving parts.
*Never work alone on vehicle electrical systems.
*If you are not qualified, seek assistance from a qualified mechanic.