Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer thinks the oil pressure is too high. It's like when you blow too much air into a balloon and it feels like it might pop.
The engine oil pressure sensor/switch B is reporting a higher than expected pressure to the engine control module (ECM).
The P055D code is triggered when the engine control module (ECM) detects a signal from the engine oil pressure sensor/switch B that indicates the oil pressure is above the specified range. This could be due to a malfunctioning sensor, wiring issues, or actual high oil pressure.
• Check Engine Light illuminated
• Erratic oil pressure readings
• Engine performance issues
• Faulty engine oil pressure sensor/switch B
• Wiring issues or poor connections
• Actual high engine oil pressure
ECM: Engine Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the oil pressure sensor.
• Test the oil pressure sensor with a multimeter.
• Replace the engine oil pressure sensor/switch B if faulty.
• Repair or replace damaged wiring or connectors.
• Check and adjust oil pressure if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$100 - $300
Moderate
• Chevrolet Silverado
• Ford F-150
• Toyota Camry
• Regularly check and change engine oil.
• Inspect wiring and connectors periodically.
• Use the correct oil type and viscosity.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Regular maintenance can prevent this issue.
Check if the sensor is covered under the vehicle's powertrain warranty.
This code has been associated with sensor failures and wiring issues in various vehicle models.
Moderate – Addressing this issue promptly can prevent engine damage.
Driving with this code for extended periods can lead to engine damage, which may not be covered under warranty.
• Engine at operating temperature
• Vehicle on a level surface
The engine oil pressure sensor/switch B is typically located near the oil filter or oil pan.
Q: Can I drive with a P055D code?
A: It's not recommended to drive for long periods with this code, as it may indicate a serious issue with oil pressure.
Q: How can I reset the Check Engine Light after fixing the issue?
A: You can use an OBD-II scanner to clear the code, or the light may turn off after several drive cycles if the issue is resolved.
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