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 having trouble reading a sensor that helps it know how the engine parts are moving. It's like trying to play a video game with a broken controller.
The P0392 code indicates that the car's computer has detected a low voltage signal from the camshaft position sensor B on bank 2.
The camshaft position sensor monitors the position and speed of the camshaft, which helps the engine control module (ECM) manage the timing of the engine's valves. A 'Circuit Low' signal means that the sensor is not sending enough voltage to the ECM, which could be due to a faulty sensor, wiring issues, or other electrical problems.
• Check Engine Light is on
• Engine may run rough or misfire
• Decreased fuel efficiency
• Difficulty starting the engine
• Faulty camshaft position sensor
• Wiring issues such as short circuits or open circuits
• Poor electrical connection
• Faulty ECM
Camshaft: A shaft in the engine that controls the opening and closing of the valves.
ECM: Engine Control Module, the computer that manages engine functions.
• Use an OBD-II scanner to confirm the code.
• Inspect the camshaft position sensor and its wiring for damage.
• Check the electrical connections for corrosion or looseness.
• Test the sensor voltage and resistance.
• Replace the camshaft position sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Ensure all electrical connections are secure and clean.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Socket set
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain sensor connections.
• Keep the engine bay clean to prevent dirt buildup.
• Follow the manufacturer's maintenance schedule.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Regularly maintain the vehicle to prevent sensor issues.
Check if the vehicle's powertrain warranty covers sensor replacement.
The P0392 code has been commonly reported in vehicles with high mileage or those with poor maintenance history.
Moderate – While the car may still run, ignoring the issue can lead to more severe engine problems.
Driving with a faulty camshaft sensor can lead to engine performance issues and increased emissions.
• Engine at operating temperature
• Sensor and wiring accessible for inspection
The camshaft position sensor B on bank 2 is typically located near the camshaft on the side of the engine opposite bank 1.
Q: Can I drive with a P0392 code?
A: It's possible, but not recommended as it can lead to further engine damage.
Q: How do I clear a P0392 code?
A: Fix the underlying issue and use an OBD-II scanner to clear the code.
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Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
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Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
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Fitment Required · Vehicle-fitment part
Commonly relevant for misfire, ignition-efficiency, and some drivability-related repairs.
Misfire and ignition-related faults commonly involve spark plugs as part of the repair path.
Check the correct plug type, gap, and engine application for your vehicle.
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Fitment Required · Vehicle-fitment part
Relevant when the fault points toward ignition-coil performance or cylinder-specific ignition issues.
Some ignition faults involve coil performance or cylinder-specific coil problems.
Match the coil to your engine and confirm the failed component before ordering.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.