AutoCodes – Lexus – P0393 Lexus

P0393 Lexus 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 Lexus 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.
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Code Popularity 25,562
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 04, 2020
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Code P0393 Lexus Description

The Camshaft Position Sensor is an electronic device used in an engine to record the rate at which the camshaft is spinning. This information is used by the Engine Control Module (ECM) to control ignition and fuel injection. The camshaft position sensor senses the retraction of camshaft (intake) to identify a particular cylinder. The camshaft position sensor senses the piston position. The sensor system consists of a rotating part, typically a disc, as well as a static part, the actual sensor.
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.
OBDII Code P0393 Lexus - Camshaft Position Sensor 'B' Circuit High Bank 2 - AutoCodes.com
P0393 Lexus Code - Camshaft Position Sensor 'B' Circuit High Bank 2

What are the Possible Causes of the DTC P0393 Lexus?

  • 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 Lexus?

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 Lexus 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.

Need more information about the P0393 Lexus code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0393 Lexus Code

No Frequently Asked Questions about P0393 Lexus Code found.

Discuss the causes and fixes for P0393 Lexus OBDII Code

  • i have the 2006 lexus gs300 i am getting the p0393 code i change the cam sensor but the check engine light will not clear

  • Any other symptoms? other than the camshaft position sensor, I have not seen anything else setting the code. If you have other symptoms, like rough idle, then you may have a problem with timing chain or exhaust camshaft.

  • lost off power car jump when ever i come to a stop

  • The loss of power is definitely a symptom of a bad Camshaft Position Sensor. For your vehicle, the Camshaft Position Sensor it's called Camshaft Variable Valve Timing (VVT) Sensor, and the P0393 code is for the Camshaft Position Sensor 'B' Bank 2 (also called VVT Sensor Exhaust Side Bank 2), From the image below, did you replace the correct sensor? With so many sensors it's easy to get confuse.

    Image

    Click here to enlarge image

  • I replace the one close to the oil cap there is a next one i should change

  • It looks like you replaced the Intake side VVT Sensor Bank 2, you need to replace the Exhaust side VVT Sensor Bank 2

    Image

    Click here to enlarge image

  • ok i will do that and give u the result

  • so change the next sensor I am still getting the code for the circuit p0393 I am wondering if the sensor is no good

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