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P2618 OBD2: Crankshaft Position Signal Output Circuit Low

P2618 OBD2: Crankshaft Position Signal Output Circuit Low

What Does the P2618 Code Mean?

The P2618 code is an OBD-II trouble code that indicates a problem with the Crankshaft Position Signal Output Circuit. Specifically, it signals that the Powertrain Control Module (PCM) has detected a low output from the crankshaft position sensor, which is crucial for proper engine timing and operation.

What Causes the P2618 Code?

  • Crankshaft Position Sensor (CKP) failure
  • Powertrain Control Module (PCM) failure
  • Wiring issues such as corrosion, shorts, or breaks in the circuit

What Are the Symptoms of the P2618 Code?

  • Check Engine Light illuminated
  • Engine misfires or runs rough
  • Difficulty starting the engine
  • Engine stalling

How Serious Is the P2618 Code?

The P2618 code is considered urgent, as it can lead to significant malfunctions that may cause severe damage to the vehicle or pose safety risks to the driver and passengers. Immediate action is recommended to diagnose and repair the underlying issue.

How to Diagnose the P2618 Code

  1. Use an OBD-II scanner to confirm the P2618 code and check for any other related codes.
  2. Inspect the wiring and connectors associated with the crankshaft position sensor for damage or corrosion.
  3. Test the crankshaft position sensor’s voltage and resistance according to the manufacturer’s specifications.
  4. Check the functionality of the Powertrain Control Module (PCM) if the sensor and wiring appear to be in good condition.

Common Repairs for the P2618 Code

  • Replacement of the Crankshaft Position Sensor
  • Repairs or replacement of damaged wiring or connectors
  • Replacement of the Powertrain Control Module (PCM) if deemed faulty

How Much Does It Cost to Fix the P2618 Code?

The cost to fix the P2618 code can vary widely depending on the underlying cause. On average, replacing a crankshaft position sensor may cost between $100 to $400, including parts and labor. If the PCM needs replacement, costs can increase significantly, often ranging from $500 to $1200.

Can I Fix the P2618 Code Myself?

While some vehicle owners with adequate automotive knowledge may be able to replace the crankshaft position sensor or repair wiring issues themselves, it is important to perform a thorough diagnosis before proceeding. Improper repairs may lead to further complications, so if you are uncertain, seeking professional assistance is recommended.

About JC Landry

JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.

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