what does it mean when the Honda Civic 10th Generation (2016-2021) oil pressure light comes on

Solution

1. Preparation

• Gather tools and parts required: OBD-II scanner, multimeter, socket set, torque wrench, oil filter wrench, new oil filter, and fresh engine oil.
• Ensure the vehicle is parked on a level surface and the engine is cool.

2. Check and Replace Engine Oil

1. Drain Old Oil

   • Place a drain pan under the oil pan.
   • Remove the oil drain plug using a socket set and allow the old oil to completely drain.
   • Replace the drain plug and torque to manufacturer's specifications (typically around 30 ft-lbs).

2. Replace Oil Filter

   • Use an oil filter wrench to remove the old oil filter.
   • Lubricate the rubber gasket of the new filter with fresh oil and install it by hand until snug, then tighten slightly more (usually 3/4 turn).

3. Add New Oil

   • Pour the recommended type and amount of new engine oil (consult owner’s manual, typically 0W-20 for Honda Civic).
   • Start the engine and let it run for a minute, then check the oil level again with the dipstick and add more oil if necessary.

3. Test Oil Pressure Sending Unit

1. Disconnect Electrical Connector

   • Locate the oil pressure sending unit and carefully disconnect the electrical connector.

2. Test with Multimeter

   • Use a multimeter to check resistance across the terminals of the sending unit. Compare readings with specifications in the repair manual. Replace if faulty.

4. Inspect Oil Pump

1. Remove Oil Pump

   • Follow the manufacturer's instructions to remove the oil pan.
   • Disconnect any necessary components (like the oil pickup tube) to access the oil pump.

2. Check for Damage

   • Inspect the oil pump for wear or damage. Replace it if there are issues with the gears or housing.

5. Reassemble and Refill

1. Reassemble

   • Reinstall the oil pan and ensure all bolts are torqued to spec.
   • Reconnect any components that were removed.

2. Refill the System

   • Add new oil through the oil filler cap if not already completed in previous steps.