AutoCodes – GMC – P2618 2014 GMC Sierra

P2618 2014 GMC Sierra Code - Crankshaft Position Signal Output Circuit Low Voltage

Quick Answer

The Crankshaft Position Sensor is also known as the crank position sensor is an electronic device used in an engine to record the rate at which the crankshaft is spinning. Common causes include Faulty Crankshaft Position Sensor, Crankshaft Position Sensor harness is open or shorted, Crankshaft 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: P2618 2014 GMC Sierra indicates Crankshaft Position Signal Output Circuit Low Voltage.
Common causes: Common causes include Faulty Crankshaft Position Sensor, Crankshaft Position Sensor harness is open or shorted, Crankshaft 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 185

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 Sep 21, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2618 2014 GMC Sierra Description

The Crankshaft Position Sensor is also known as the crank position sensor is an electronic device used in an engine to record the rate at which the crankshaft is spinning. This information is used by the Engine Control Module (ECM) to control ignition and fuel injection. The sensor system consists of a rotating part, typically a disc, as well as a static part, the actual sensor.
When the engine is running, the high and low parts of the teeth cause the gap with the sensor to change. The changing gap causes the magnetic field near the sensor to change. The change in the magnetic field causes the voltage from the sensor to change.
The Diagnostic Trouble Code (DTC) will be set when the Crankshaft Position Signal Output Circuit is short to ground or open for greater than 5 s.

OBDII Code P2618 2014 GMC Sierra - Crankshaft Position Signal Output Circuit Low Voltage - AutoCodes.com — P2618 2014 GMC Sierra Code - Crankshaft Position Signal Output Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2618 2014 GMC Sierra?

Faulty Crankshaft Position Sensor
Crankshaft Position Sensor harness is open or shorted
Crankshaft Position Sensor circuit poor electrical connection

How to Fix the DTC P2618 2014 GMC Sierra?

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 P2618 2014 GMC Sierra 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.

Need more information about the P2618 2014 GMC Sierra code?

Need more information on how to fix the P2618 2014 GMC Sierra code? Get Access to Factory Service Manuals

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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 P2618 2014 GMC Sierra Code

1. What does the OBDII code P2618 mean on a 2014 GMC Sierra?

Code P2618 indicates a low voltage issue in the crankshaft position signal output circuit, which can affect engine performance and drivability.

2. What are the common symptoms of code P2618 on a 2014 GMC Sierra?

Symptoms may include engine stalling, rough idling, difficulty starting, reduced power, or the check engine light turning on.

3. What causes the P2618 code to appear in a 2014 GMC Sierra?

Common causes include a faulty crankshaft position sensor, damaged wiring or connectors, a weak battery, or a malfunctioning ECM (engine control module).

4. Can a bad crankshaft position sensor trigger code P2618?

Yes, a malfunctioning crankshaft position sensor is a primary cause of this code, as it disrupts the signal sent to the ECM.

5. How do I diagnose the P2618 code on a 2014 GMC Sierra?

Start by inspecting the crankshaft position sensor, wiring, and connectors for damage. Use a multimeter to check for proper voltage and continuity in the circuit.

6. Can a low battery voltage cause the P2618 code to appear?

Yes, low battery voltage or poor electrical connections can affect the crankshaft position signal and trigger this code.

7. How serious is the P2618 code on a 2014 GMC Sierra?

This code is moderately serious, as it can lead to drivability issues and engine stalling, potentially leaving you stranded if not addressed promptly.

8. What repairs are needed to fix the P2618 code?

Repairs may include replacing the crankshaft position sensor, repairing or replacing damaged wiring, cleaning corroded connectors, or updating/replacing the ECM if necessary.

9. Can I still drive my 2014 GMC Sierra with the P2618 code present?

While you may still be able to drive, itâ€™s not recommended, as the issue could worsen and cause the engine to stall unexpectedly.

10. How much does it cost to fix the P2618 code on a 2014 GMC Sierra?

The repair cost varies depending on the cause but typically ranges from $100 to $300 for parts and labor, with crankshaft position sensor replacement being the most common fix.