P0347 Camshaft Position Sensor A Circuit Low Input Bank 2

Definition: The P0347 code indicates that the Engine Control Module (ECM) has detected a low input signal from the camshaft position sensor A on bank 2. This sensor is responsible for monitoring the position of the camshaft and sending this information to the ECM, which uses it to control ignition timing and fuel injection.

p0347 – Camshaft Position Sensor A Circuit Low Input Bank 2

Typical Severity: Moderate

Common Causes

P0347 – Camshaft Position Sensor A Circuit Low Input Bank 2

Common causes:

• Faulty camshaft position sensor
• Open or short in the wiring harness connected to the camshaft position sensor
• Poor electrical connection at the camshaft position sensor
• Engine mechanical problems affecting the camshaft position sensor
• Corroded or damaged connectors related to the camshaft position sensor circuit

 

Common Misdiagnosis

OBD2 Code: P0347

Description: Camshaft Position Sensor A Circuit Low Input (Bank 2)

Common Misdiagnosis: Replacing the camshaft position sensor without checking for wiring issues or connector problems.

 

Common Diagnostic Steps

OBD2 Code: P0347

Description: Camshaft Position Sensor A Circuit Low Input (Bank 2)

• Verify the code with an OBD-II scanner and clear it to see if it returns.
• Inspect the camshaft position sensor for any visible damage or wear.
• Check the wiring and connectors for corrosion, damage, or loose connections.
• Test the voltage and ground signals at the camshaft position sensor using a multimeter.
• Examine the timing chain/belt for proper alignment and tension.
• If applicable, check for any aftermarket modifications that could affect sensor performance.
• Replace the camshaft position sensor if it is found to be faulty after testing.
• If issues persist, consider inspecting related components such as the crankshaft position sensor or engine control module (ECM).