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Engine-Codes – Toyota – P0347 Toyota

P0347 Toyota Code - Camshaft Position Sensor 'A' Circuit Low Input Bank 2

Quick Answer

The P0347 diagnostic trouble code (DTC) for Toyota vehicles refers to the Camshaft Position Sensor 'A' Circuit Low Input Bank 2. Common causes include Faulty camshaft position sensor, Damaged wiring or connectors in the sensor circuit, Issues with the ECM. 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
P0347 Toyota indicates Camshaft Position Sensor 'A' Circuit Low Input Bank 2.
Common causes
Common causes include Faulty camshaft position sensor, Damaged wiring or connectors in the sensor circuit, Issues with the ECM.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0347 Toyota Description

The P0347 diagnostic trouble code (DTC) for Toyota vehicles refers to the Camshaft Position Sensor 'A' Circuit Low Input Bank 2. This means that the signal coming from the camshaft position sensor located in bank 2 of the engine is registering a lower voltage or signal than expected by the Engine Control Module (ECM). The camshaft position sensor plays a crucial role in the engine's operation by providing the ECM with information about the camshaft's position and speed, which is essential for proper fuel injection timing and ignition timing.

OBDII Code P0347 Toyota - Camshaft Position Sensor 'A' Circuit Low Input Bank 2
P0347 Toyota Code - Camshaft Position Sensor 'A' Circuit Low Input Bank 2

Common Causes of P0347 Toyota

  1. Faulty camshaft position sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Issues with the ECM
  4. Problems with the camshaft itself
  5. Poor maintenance or neglect of the vehicle's engine components

Symptoms of P0347 Toyota

  1. Rough idling or engine stalling
  2. Misfiring or hesitation during acceleration
  3. Difficulty starting the engine
  4. Decreased fuel efficiency
  5. Engine performance issues such as loss of power or acceleration

How to Fix P0347 Toyota

  1. Begin by diagnosing the specific cause of the low input signal from the camshaft position sensor on bank 2 by using a diagnostic scanner to retrieve the code and perform further testing.
  2. Inspect the camshaft position sensor, wiring, and connectors for any visible damage or wear. Replace any damaged components as needed.
  3. Test the camshaft position sensor's voltage and signal output to ensure it is within the manufacturer's specifications. Replace the sensor if it is faulty.
  4. Clear the DTC from the ECM's memory and perform a test drive to ensure that the issue has been resolved.
  5. If the problem persists, further diagnostics may be necessary to identify any underlying issues with the camshaft or ECM.

Cost to Fix P0347 Toyota

The typical repair costs for addressing the P0347 code on a Toyota vehicle can range from $100 to $300, depending on the specific cause of the issue and the parts needed for the repair. This estimate includes the cost of the camshaft position sensor, wiring repairs or replacements, and labor charges. It's important to note that the actual repair costs can vary based on factors such as the vehicle's make and model, the location of the repair shop, and the specific diagnosis time and labor rates. It's advisable to consult with a qualified mechanic or auto repair shop to obtain a more accurate estimate based on your specific situation.

What does this mean?

Tech Notes for P0347 Toyota

Sometimes and in some models, low battery voltage or a weak starter can trigger a Camshaft Position Sensor code.

When is the Code Detected?

The camshaft position sensor signal is sent the Engine Control Module(ECM) is too low

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Information for Specific Toyota Models

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.

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