AutoCodes – RAM – P0349 RAM

P0349 RAM 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 RAM 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 439

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

What does this mean?

What are the Possible Causes of the DTC P0349 RAM?

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 RAM?

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 RAM 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 RAM Code

1. What does the OBDII code P0349 mean for a RAM vehicle?

P0349 indicates an intermittent signal issue with the camshaft position sensor for Bank 2 Sensor 1, which monitors the timing of the camshaft.

2. What are the common symptoms of code P0349 in a RAM?

Symptoms may include engine misfires, rough idling, reduced engine performance, difficulty starting, and the check engine light turning on.

3. What causes the P0349 code in a RAM?

Common causes include a faulty camshaft position sensor, damaged sensor wiring, poor electrical connections, or issues with the timing components.

4. Can you drive a RAM with the P0349 code active?

While the vehicle may still be operable, driving with this code can lead to poor engine performance and potentially cause further damage over time.

5. How is the P0349 code diagnosed in a RAM?

A mechanic will use an OBDII scanner to confirm the code, inspect the camshaft position sensor, check wiring and connections, and possibly test the timing chain or belt.

6. How do you fix the P0349 code on a RAM?

Repairs may involve replacing the camshaft position sensor, repairing damaged wiring, cleaning electrical connections, or addressing timing-related issues.

7. How much does it cost to fix the P0349 code on a RAM?

Repair costs vary but typically range from $150 to $350 for sensor replacement, depending on labor rates and parts pricing.

8. Can a dirty or damaged camshaft position sensor trigger the P0349 code?

Yes, a sensor covered in debris or damaged can fail to provide consistent readings, leading to the intermittent signal issue.

9. Could a timing chain or belt problem cause the P0349 code?

Yes, if the timing components are worn or misaligned, it can cause irregular camshaft position readings that trigger this code.

10. How can you prevent the P0349 code from recurring in a RAM?

Regular maintenance, including timely replacement of camshaft position sensors and inspection of wiring and timing components, can help prevent this issue.