AutoCodes – RAM – P0344 RAM

P0344 RAM Code - Camshaft Position Sensor Intermittent Bank 1 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: P0344 RAM indicates Camshaft Position Sensor Intermittent Bank 1 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 542

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

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

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0344 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 P0344 RAM - Camshaft Position Sensor Intermittent Bank 1 Sensor 1 - AutoCodes.com — P0344 RAM Code - Camshaft Position Sensor Intermittent Bank 1 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P0344 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 P0344 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 P0344 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 P0344 RAM Code

1. What does the OBDII code P0344 mean on a RAM vehicle?

P0344 indicates an intermittent issue with the camshaft position sensor circuit on Bank 1 Sensor 1, meaning the sensor signal is not consistent or reliable.

2. What are the common symptoms of the P0344 code in a RAM?

Symptoms may include difficulty starting, engine stalling, rough idling, poor acceleration, reduced fuel efficiency, and the check engine light being illuminated.

3. What causes the P0344 code to appear on a RAM vehicle?

Common causes include a faulty camshaft position sensor, damaged or corroded wiring, a loose electrical connection, a failing PCM (Powertrain Control Module), or issues with the timing components.

4. Can I drive my RAM with the P0344 code?

Driving with this code is not recommended, as it may lead to engine stalling or rough performance, which could compromise safety and cause further damage.

5. How do I fix the P0344 code on a RAM vehicle?

Repairs may include replacing the camshaft position sensor, repairing or replacing damaged wiring, securing loose connections, updating or replacing the PCM, or addressing timing chain or belt issues.

6. How can I test the camshaft position sensor for a P0344 code?

You can test the sensor using a multimeter to check for proper voltage and continuity or use an oscilloscope to verify signal consistency while the engine is running.

7. Can a bad crankshaft position sensor cause the P0344 code?

Yes, a faulty crankshaft position sensor can sometimes cause related issues that trigger the P0344 code, as the PCM relies on both sensors for accurate timing data.

8. How much does it cost to fix the P0344 code on a RAM?

Repair costs vary depending on the cause but typically range from $100 to $300 for parts and labor, with camshaft position sensor replacement being the most common fix.

9. Will clearing the code with a scanner solve the P0344 issue?

Clearing the code may temporarily turn off the check engine light, but it will not fix the underlying issue. Proper diagnosis and repair are necessary.

10. Can a low battery or charging system issue trigger the P0344 code?

Yes, a weak battery or malfunctioning alternator can cause voltage irregularities, potentially leading to intermittent camshaft sensor signals and triggering the P0344 code.