Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is saying that the sensor that checks the oil pressure is getting too high of a signal. It's like when a video game controller is stuck on full speed even though you're not pressing the button.
This code indicates that the signal from the engine oil pressure sensor or switch C is higher than expected by the engine control module (ECM).
The P2D90 code is triggered when the ECM detects a voltage signal from the engine oil pressure sensor/switch C that is above the specified range. This could be due to a short circuit, faulty sensor, or wiring issues.
• Check Engine Light is on
• Erratic oil pressure readings
• Engine performance issues
• Faulty oil pressure sensor/switch
• Short circuit in the sensor wiring
• Defective ECM
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Scan the vehicle with an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the oil pressure sensor.
• Test the oil pressure sensor for proper operation.
• Replace the faulty oil pressure sensor/switch.
• Repair or replace damaged wiring.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$100 - $300
Moderate
• Chevrolet Silverado
• Ford F-150
• Toyota Camry
• Regularly check and maintain oil levels.
• Inspect wiring and connectors periodically.
• Use quality engine oil and filters.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional.
• Avoid driving long distances until the issue is resolved.
Check with your vehicle manufacturer for warranty coverage on sensors.
This code is relatively uncommon and typically associated with sensor or wiring issues.
Moderate – It should be addressed soon to prevent potential engine damage.
Ignoring this code can lead to engine damage and may affect vehicle emissions.
• Engine running
• Normal operating temperature
The oil pressure sensor is typically located near the oil filter or on the engine block.
Q: Can I drive with a P2D90 code?
A: It's not recommended to drive for long distances with this code as it may indicate a serious issue with the oil pressure system.
Q: How do I reset the Check Engine Light after fixing the issue?
A: Use an OBD-II scanner to clear the code after the repair is completed.
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