AutoCodes – RAM – P0342 RAM

P0342 RAM Code - Camshaft Position Sensor Circuit Low Input

Quick Answer

The Camshaft Position (CMP) Sensor circuits consist of a Powertrain Control Module (PCM) supplied 5-volt reference circuit, a low reference circuit, and an output signal circuit. Common causes include Faulty Camshaft Position (CMP) Sensor, Camshaft Position Sensor harness is open or shorted, Camshaft Position Sensor circuit poor electrical connection. 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: P0342 RAM indicates Camshaft Position Sensor Circuit Low Input.
Common causes: Common causes include Faulty Camshaft Position (CMP) Sensor, Camshaft Position Sensor harness is open or shorted, Camshaft Position Sensor circuit poor electrical connection.
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 586

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 26, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0342 RAM Description

The Camshaft Position (CMP) Sensor circuits consist of a Powertrain Control Module (PCM) supplied 5-volt reference circuit, a low reference circuit, and an output signal circuit. The CMP Sensor is an internally magnetic biased digital output integrated circuit sensing device. The sensor detects magnetic flux changes between the peaks and valleys of a tone wheel attached to the camshaft. As each tooth rotates past the CMP Sensor, the resulting change in the magnetic field is used by the sensor electronics to produce a digital output pulse. The sensor returns a digital ON/OFF DC voltage pulse of varying frequency output pulses per Camshaft revolution that represents an image of the camshaft tone wheel. The frequency of the CMP Sensor output depends on the velocity of the camshaft. The PCM decodes the tooth pattern to identify the camshaft position. This information is then used to sequence the ignition timing and fuel injection events for the engine. The PCM also uses CMP Sensor output information to determine the camshaft relative position to the Crankshaft, to control the CMP Actuator operation if equipped. The Diagnostic Trouble Code (DTC) will set when the CMP Sensor signal sent to the PCM is too low.

OBDII Code P0342 RAM - Camshaft Position Sensor Circuit Low Input - AutoCodes.com — P0342 RAM Code - Camshaft Position Sensor Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0342 RAM?

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)

How to Fix the DTC P0342 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0342 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 P0342 RAM Code

1. What are the common symptoms of OBDII code P0342 related to the camshaft position sensor circuit low input?

- Common symptoms include engine stalling, rough idling, poor acceleration, and difficulties starting the vehicle.

2. What are the possible causes of OBDII code P0342 indicating a low input in the camshaft position sensor circuit?

- The code can be triggered by a faulty camshaft position sensor, damaged wiring or connectors in the sensor circuit, or a problem with the engine control module.

3. How can I diagnose the issue causing OBDII code P0342 to appear in my vehicle?

- You can use a multimeter to test the camshaft position sensor, inspect the wiring and connectors for any damage, and check for any related trouble codes in the system.

4. What are some tips for repairing OBDII code P0342 associated with a low input in the camshaft position sensor circuit?

- Repair options include replacing the camshaft position sensor, repairing or replacing damaged wiring or connectors, and reprogramming the engine control module if necessary.

5. Can driving with OBDII code P0342 present cause further damage to my vehicle?

- Continuing to drive with this code may lead to poor engine performance, reduced fuel efficiency, and potential damage to other engine components over time.

6. Is it safe to clear the OBDII code P0342 without addressing the underlying issue?

- Clearing the code without fixing the root cause can temporarily turn off the check engine light, but the problem will persist and may eventually trigger the code again.

7. How important is it to address OBDII code P0342 promptly once it appears in my vehicle?

- It is crucial to address the issue promptly to prevent further engine problems, ensure optimal vehicle performance, and avoid potential safety hazards on the road.

8. Are there any preventive measures I can take to avoid encountering OBDII code P0342 in the future?

- Regularly inspecting and maintaining the camshaft position sensor, wiring, and connectors can help prevent issues that could trigger this code in the future.

9. Can a DIY enthusiast with basic automotive knowledge repair OBDII code P0342 on their own?

- Depending on the specific cause, a DIY enthusiast may be able to replace the camshaft position sensor or repair simple wiring issues, but more complex repairs may require professional assistance.

10. How much can I expect to spend on repairing OBDII code P0342 related to the camshaft position sensor circuit low input?

- The cost of repairing this code can vary depending on the cause, but expenses may include the price of a new sensor, wiring repairs, labor costs, and potential fees for reprogramming the engine control module.