P0520 Chevrolet Code - Engine Oil Pressure Switch Circuit
Quick Answer
The Powertrain Control Module (PCM) monitors the signal circuit of the Engine Oil Pressure (EOP) sensor. Common causes include Faulty Engine Oil Pressure (EOP) Switch, Engine Oil Pressure Switch harness is open or shorted, Engine Oil Pressure Switch circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0520 Chevrolet indicates Engine Oil Pressure Switch Circuit.
- Common causes
- Common causes include Faulty Engine Oil Pressure (EOP) Switch, Engine Oil Pressure Switch harness is open or shorted, Engine Oil Pressure Switch circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0520 Chevrolet Description
What are the Possible Causes of the DTC P0520 Chevrolet?
- Faulty Engine Oil Pressure (EOP) Switch
- Engine Oil Pressure Switch harness is open or shorted
- Engine Oil Pressure Switch circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
- Faulty Instrument Panel Cluster (IPC)
How to Fix the DTC P0520 Chevrolet?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0520 Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0520 Chevrolet code?
Need more information on how to fix the P0520 Chevrolet code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0520 Chevrolet code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0520 Chevrolet Code
1. What are the common symptoms of OBDII code P0520 in a Chevrolet related to the engine oil pressure switch circuit?
- Common symptoms include low oil pressure warning light on the dashboard, engine oil pressure gauge reading zero, and potential engine stalling or rough idling.
2. What are the possible causes of OBDII code P0520 in a Chevrolet?
- The code P0520 in a Chevrolet can be triggered by a faulty engine oil pressure switch, low engine oil level, clogged oil filter, or wiring issues in the oil pressure switch circuit.
3. How can I diagnose the OBDII code P0520 in my Chevrolet related to the engine oil pressure switch circuit?
- Diagnosis involves checking the engine oil level, inspecting the oil pressure switch and its wiring for damage, and using a scan tool to monitor oil pressure sensor data.
4. Can driving with OBDII code P0520 in a Chevrolet cause further damage to the engine?
- Continuing to drive with OBDII code P0520 in a Chevrolet can potentially lead to engine damage due to insufficient lubrication and oil pressure issues.
5. How can I repair OBDII code P0520 in a Chevrolet related to the engine oil pressure switch circuit?
- Repair typically involves replacing the faulty engine oil pressure switch, ensuring the engine oil level is correct, and checking for any oil leaks or blockages in the system.
6. Is it safe to reset the OBDII code P0520 in a Chevrolet without addressing the underlying issue?
- Resetting the code without fixing the root cause can temporarily clear the warning light, but the issue will likely reappear, potentially causing further damage to the engine.
7. Can a DIY enthusiast fix OBDII code P0520 in a Chevrolet, or is professional assistance recommended?
- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to replace the engine oil pressure switch themselves. However, professional assistance is recommended if unsure.
8. Will OBDII code P0520 in a Chevrolet automatically resolve itself over time?
- OBDII code P0520 will not resolve itself over time and requires proper diagnosis and repair to address the underlying engine oil pressure switch circuit issue.
9. Are there any preventative maintenance tips to avoid triggering OBDII code P0520 in a Chevrolet?
- Regularly checking and changing the engine oil, using the recommended oil viscosity, and addressing any oil leaks promptly can help prevent issues that may trigger code P0520.
10. How long does it typically take to repair OBDII code P0520 in a Chevrolet at a professional auto repair shop?
- The repair time for OBDII code P0520 in a Chevrolet can vary depending on the exact cause of the issue, but it usually takes a few hours to diagnose and replace the faulty components.
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