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P0361 Code – What Does It Mean & How To Fix It

This is one of the most frequent OBD2 trouble codes. Read the full article below to know what it means, how to fix it, and what other codes may show related to it.


P0361 relates to an issue with the “B” camshaft position sensor circuit on Bank 1 and is a diagnostic failure code. That code is part of the OBD II system that has been deployed in new vehicles for monitoring and diagnosis of several engine issues, which are referred to as emissions problems.


P0361 suggests there’s a problem with the electricity or signal coming from the camshaft position sensor “B” at bank 1 of the engine. To determine the position of the camshaft, which, in turn, helps to control fuel injection and ignition timing, the camshaft position sensor is essential for the engine control module (ECM).


Several factors can trigger the P0361 DTC code, including:

  • Faulty Camshaft Position Sensor: The most common cause is a malfunctioning camshaft position sensor in bank 1.
  • Wiring Issues: Damaged or corroded wiring and connectors in the camshaft position sensor “B” circuit can lead to this code.
  • Sensor Alignment: Incorrect sensor alignment or installation can cause a P0361 code.
  • ECM Issues: Rarely, this code might be set off by problems with the engine control module (ECM).


Common symptoms associated with the P0361 code include:

  • Check Engine Light: The most obvious symptom is the illumination of the check engine light on the vehicle’s dashboard.
  • Poor Engine Performance: The engine may run roughly, misfire, or have reduced power.
  • Stalling: On occasion, the engine may abruptly stall.
  • Hard Starting: The process of starting the engine might get more challenging.


The following actions are routinely taken by a mechanic to identify and validate the P0361 code:

  • Code Scan: To recover the recorded error codes, including P0361, use an OBD-II scanner.
  • Visual Examination: Check for damage or corrosion in the camshaft position sensor “B” wire and connections.
  • Sensor Testing: Test the camshaft position sensor’s resistance and voltage output to check for proper functionality.
  • Signal Verification: Use a scope or multimeter to verify the sensor’s signal and alignment.

Common mistakes

When dealing with the P0361 error code, common errors include:

  • Unnecessary Sensor Replacement: If mechanics replace the camshaft position sensor before making sure it works, it might be expensive if the problem is elsewhere.
  • Neglecting Wiring and Connectors: Failing to thoroughly inspect and repair damaged wiring or connectors can lead to recurring issues.

How serious is this?

The severity of the P0361 code will depend on the degree to which this is a problem. If this code continues to be used, it may result in reduced engine performance and possibly lead to the failure of the vehicle. To prevent further damage and maintain optimal engine performance, it is advisable to address this problem as quickly as possible.

What repairs can fix the codeS?

repair manuals

It might be essential to take the following steps to fix the P0361 error code:

  • Replacement of the Camshaft Position Sensor: If the sensor is broken, a brand-new, high-quality sensor should be installed in its stead.
  • Repair of wire and connections: In the “B” circuit for the camshaft position sensor, repair or replace any frayed, corroded, or damaged wire and connections.
  • ReplacementReplacement of the ECM: If the ECM is found to be the problem, it may need to be replaced or reprogrammed.

Related codes

Related codes that may accompany or be related to P0361 include:

  • P0360: Camshaft Position Sensor “B” Circuit (Bank 2)
  • P0362: Camshaft Position Sensor “B” Circuit Low Input (Bank 1)


A P0361 DTC code indicates that there is a problem in the camshaft position sensor “B” circuit on bank 1 of the engine. Although this might not always lead to immediate problems with vehicle stability, it can result in reduced engine performance and should therefore be remedied promptly as a matter of urgency so that the vehicle operates smoothly and avoids further damage. To correct the issue, diagnosis, and repair usually require checking of sensors, wiring, connectors, or occasionally an electronic control unit.

P0361 Code – What Does It Mean & How To Fix It