AutoCodes – Jeep – P0349 Jeep

P0349 Jeep Code - Camshaft Position Sensor Intermittent Bank 2 Sensor 1

Quick Answer

The circuits of the Camshaft Position (CMP) Sensor include a 5-Volt reference circuit supplied by the Powertrain Control Module (PCM), a low reference circuit, and an output signal circuit. Common causes include Low engine oil, Faulty Camshaft Position (CMP) Sensor, Camshaft Position Sensor harness is open or shorted. 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: P0349 Jeep indicates Camshaft Position Sensor Intermittent Bank 2 Sensor 1.
Common causes: Common causes include Low engine oil, Faulty Camshaft Position (CMP) Sensor, Camshaft Position Sensor harness is open or shorted.
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 1,556

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jun 15, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0349 Jeep Description

The circuits of the Camshaft Position (CMP) Sensor include a 5-Volt reference circuit supplied by the Powertrain Control Module (PCM), a low reference circuit, and an output signal circuit. The CMP Sensor is a digital output integrated circuit sensing device that is internally magnetically biased. It detects changes in magnetic flux between the high and low points of a tone wheel connected to the camshaft. When each tooth on the tone wheel passes by the CMP Sensor, the sensor electronics use the resulting change in the magnetic field to generate a digital output pulse. The sensor produces a digital ON/OFF DC voltage pulse with a frequency that varies depending on the number of output pulses per revolution of the camshaft, corresponding to the pattern on the camshaft tone wheel. The speed of the camshaft determines the frequency of the CMP Sensor output. The PCM interprets the tooth pattern to determine the position of the camshaft. This information is then utilized to synchronize the engine's ignition timing and fuel injection events. Additionally, the PCM uses the CMP Sensor output data to ascertain the relative position of the camshaft to the Crankshaft, enabling control of the CMP Actuator if it is present.
The Diagnostic Trouble Code (DTC) will be set if, during cranking, at least 2.5 seconds have elapsed with a Crankshaft Position Sensor signal present but no Camshaft Position Sensor signal or with the engine running, the Camshaft Position Sensor signal is lost for at least 0.4 seconds with a Crankshaft Position Sensor signal present.

OBDII Code P0349 Jeep - Camshaft Position Sensor Intermittent Bank 2 Sensor 1 - AutoCodes.com — P0349 Jeep Code - Camshaft Position Sensor Intermittent Bank 2 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P0349 Jeep?

Low engine oil
Faulty Camshaft Position (CMP) Sensor
Camshaft Position Sensor harness is open or shorted
Camshaft Position Sensor circuit poor electrical connection
Faulty Powertrain Control Module (PCM)
Camshaft Tone Wheel loose/damaged or misaligned
Dead (Weak) battery

How to Fix the DTC P0349 Jeep?

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.

What does this mean?

Code Tech Notes

In the event of a failure in either the Crankshaft Position (CKP) Sensor or Camshaft Position (CMP) Sensor, the engine can still start. The Powertrain Control Module (PCM) is capable of determining the engine position and initiating startup based on one of these two inputs. However, there may be a small delay in starting as the PCM needs time to establish synchronization. If either the CKP or CMP Sensor signals are absent during engine cranking, a Diagnostic Trouble Code (DTC) is recorded, and the Malfunction Indicator Lamp (MIL) lights up.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0349 Jeep 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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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 P0349 Jeep Code

1. What are the common symptoms of OBDII code P0349 in a Jeep related to the Camshaft Position Sensor Intermittent Bank 2 Sensor 1?

Symptoms may include rough idling, stalling, decreased fuel efficiency, and difficulties starting the vehicle.

2. What are the possible causes of OBDII code P0349 in a Jeep related to the Camshaft Position Sensor Intermittent Bank 2 Sensor 1?

Potential causes include a faulty camshaft position sensor, wiring issues, sensor connections problems, or issues with the engine control module (ECM).

3. How can I diagnose the OBDII code P0349 in a Jeep related to the Camshaft Position Sensor Intermittent Bank 2 Sensor 1?

Diagnosis typically involves using a scan tool to read the code, checking the sensor's wiring and connections, and testing the sensor's functionality using a multimeter.

4. Can I continue driving my Jeep with OBDII code P0349 related to the Camshaft Position Sensor Intermittent Bank 2 Sensor 1?

Continuing to drive the vehicle with this code present is not recommended as it can lead to further engine damage and potential safety hazards.

5. How can I repair OBDII code P0349 in a Jeep related to the Camshaft Position Sensor Intermittent Bank 2 Sensor 1?

Repair options may involve replacing the camshaft position sensor, repairing any damaged wiring or connections, or reprogramming the ECM if needed.

6. Are there any maintenance tips to prevent OBDII code P0349 in a Jeep related to the Camshaft Position Sensor Intermittent Bank 2 Sensor 1?

Regularly inspecting and maintaining the camshaft position sensor, as well as ensuring proper wiring connections, can help prevent issues leading to this code.

7. How long does it typically take to repair OBDII code P0349 in a Jeep related to the Camshaft Position Sensor Intermittent Bank 2 Sensor 1?

The repair time can vary depending on the exact cause of the issue, but it may take anywhere from 1-3 hours for a professional to diagnose and fix the problem.

8. Can a DIY enthusiast with automotive experience repair OBDII code P0349 related to the Camshaft Position Sensor Intermittent Bank 2 Sensor 1?

While some experienced DIY enthusiasts may be able to diagnose and replace the sensor themselves, it's recommended to consult a professional for accurate diagnosis and repair.

9. Will resetting the OBDII code P0349 related to the Camshaft Position Sensor Intermittent Bank 2 Sensor 1 fix the issue?

Simply resetting the code may temporarily clear the warning light, but it will not resolve the underlying problem causing the code to trigger.

10. How much does it cost to repair OBDII code P0349 related to the Camshaft Position Sensor Intermittent Bank 2 Sensor 1 in a Jeep?

Costs can vary depending on the exact cause of the issue and labor rates in your area, but expect to pay anywhere from $100 to $300 for parts and labor.