P0393 Toyota Code - Camshaft Position Sensor 'B' Circuit High Bank 2
Quick Answer
The Camshaft Position Sensor is an electronic device used in an engine to record the rate at which the camshaft is spinning. Common causes include Faulty Camshaft Position Sensor, Camshaft Position Sensor harness is open or shorted, Camshaft Position Sensor 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
- P0393 Toyota indicates Camshaft Position Sensor 'B' Circuit High Bank 2.
- Common causes
- Common causes include Faulty Camshaft Position Sensor, Camshaft Position Sensor harness is open or shorted, Camshaft Position Sensor 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 P0393 Toyota Description
When the engine is running, the high and low parts of the teeth cause the gap with the sensor to change. The changing gap causes the magnetic field near the sensor to change. The change in the magnetic field cause the voltage from the sensor to change.
When the crankshaft position sensor (POS) system becomes inoperative, the camshaft position sensor provides various controls of engine parts instead, utilizing timing of cylinder identification signals.
What are the Possible Causes of the DTC P0393 Toyota?
- Faulty Camshaft Position Sensor
- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty starter motor
- Starting system circuit
- Dead (Weak) battery
How to Fix the DTC P0393 Toyota?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0393 Toyota 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.
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Frequently Asked Questions about P0393 Toyota Code
No Frequently Asked Questions about P0393 Toyota Code found.
Discuss the causes and fixes for P0393 Toyota OBDII Code
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Where is the Camshaft sensor Bank B, Sensor B on a 2007 Toyota Camry 3.5L with Code PO393?
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I have a 2007 Toyota Camry 3.5 L with a code PO393 for camshaft sensor Bank B, sensor B. I checked the wiring from the sensor plug in to the EM with the key on and received the proper 12.7 volts on the center wire and 5.0 volts on both sides. I was advised to replace the camshaft sensor and did so with no results. The code stored says the ECM is receiving a high voltage reading and it could be the camshaft sensor, harness open or shorted, cam sensor circuit poor electrical connection, faulty starter motor, starting system circuit or dead or weak battery.
I have replaced the battery, cam sensor, clead the MAF sensor and found corn kernels and debris in the air cleanwer filter (a lot which basically restricted air flow but is clean when corn was removed). I have exerienced diffeent codes but basically the PO393 is the only one active now. The early symptoms were the check engine light which would go on randomly when starting but would work fine for days. Now light is on and when I remove the codes the Engine light goes off and then back on. This engine has 4 camshafts and 4 sensors, supposedly all the same. I would like to make sure I have located the correct Bank B sensor. Thank You. Don. -
Here is the location of the sensors (Click on the image to enlarge). Other than the sensor, I have not seen any other component setting the code.
Exhaust = Sensor 'B'
Left = Bank 2
Click here to enlarge image
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