B0520
Passenger Door Open Switch
The body control module has detected a fault in the passenger door open (jamb) switch. Same fault profile as B0510 but for the passenger door.
The body control module has detected a fault in the passenger door open (jamb) switch. Same fault profile as B0510 but for the passenger door.
Common causes
- high
Door jamb switch stuck or corroded
One of the most commonly reported causes for this code — check this first.
Typical part cost: $20-220
- medium
Wiring open in door hinge
A plausible cause — test and verify before replacing parts.
Typical part cost: $20-220
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does B0520 mean?
B0520 means "Passenger Door Open Switch". It is a generic OBD-II code that points to a fault in the body.
What are the most common causes of B0520?
door jamb switch stuck or corroded; wiring open in door hinge — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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