Step-by-Step Solution:

1. Diagnose Issues: Use an OBD-II scanner to read any error codes from the engine control unit (ECU).
2. Inspect Engine Components: Check the condition of spark plugs, fuel injectors, and air filters.
3. Perform Maintenance: Replace worn-out spark plugs, clean or replace fuel injectors, and change air filters.
4. Check Fluids: Ensure proper levels of engine oil and coolant.
5. Test Engine Performance: Perform a compression test to evaluate the engine's condition.

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Step-by-Step Solution:

1. Check Bulbs: Inspect all exterior and interior light bulbs for burnouts.
2. Inspect Fuses: Check the fuse box for blown fuses related to the lighting system.
3. Test Wiring: Make sure the wiring connects, and there are no breaks or shorts.
4. Replace Defective Parts: Replace faulty bulbs, fuses, or wiring as necessary.
5. Verify Functionality: Test all lights to ensure they function properly after repairs.

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Step-by-Step Solution:

1. Check Blower Motor: Inspect the blower motor for proper operation.
2. Inspect AC/Heater Controls: Ensure the controls and switches function correctly.
3. Check Refrigerant Levels: Verify that the refrigerant levels are adequate and recharge if necessary.
4. Inspect Heater Core: Check for any blockages or leaks in the heater core.
5. Test System: Test the AC and heater to ensure they work correctly after repairs.

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Step-by-Step Solution:

1. Inspect Accessories: Check the functionality of all manual and electrical interior accessories, such as radios and dashboard controls.
2. Check Fuses: Inspect the fuse box for any blown fuses related to interior accessories.
3. Test Wiring: Check wiring connections to ensure they are intact.
4. Replace Faulty Components: Replace any defective switches, motors, or controls.
5. Verify Operation: Test all interior accessories to ensure they work properly after repairs.

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Step-by-Step Solution:

1. Inspect Radiator: Check the radiator for leaks, blockages, or damage.
2. Check Coolant Levels: Ensure the coolant levels are correct and top up if necessary.
3. Inspect Hoses: Check all coolant hoses for signs of wear, leaks, or damage.
4. Test Thermostat: Test the thermostat to ensure it opens and closes at the correct temperatures.
5. Flush Cooling System: Perform a coolant flush to remove debris or contaminants.
6. Check Water Pump: Inspect the pump for proper operation and replace it if it is faulty.

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