AutoCodesDodge – P2147 Dodge

P2147 Dodge Code - Cylinder 1 Injector High Control Circuit Low Voltage

Quick Answer

The Engine Control Module (ECM) supplies voltage to each fuel injector on the high control circuits. Common causes include Faulty Fuel Injector 1, Fuel Injector 1 harness is open or shorted, Fuel Injector 1 circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P2147 Dodge indicates Cylinder 1 Injector High Control Circuit Low Voltage.
Common causes
Common causes include Faulty Fuel Injector 1, Fuel Injector 1 harness is open or shorted, Fuel Injector 1 circuit poor electrical connection.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
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Code Popularity 6,343
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 23, 2024
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Code P2147 Dodge Description

The Engine Control Module (ECM) supplies voltage to each fuel injector on the high control circuits. The ECM energizes each fuel injector by grounding the low control circuit of the fuel injector. The ECM monitors the status of the fuel injector circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector(s) is disabled. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the fuel injector high voltage supply circuit is shorted to ground for greater than 2 s.
OBDII Code P2147 Dodge - Cylinder 1 Injector High Control Circuit Low Voltage - AutoCodes.com
P2147 Dodge Code - Cylinder 1 Injector High Control Circuit Low Voltage

What are the Possible Causes of the DTC P2147 Dodge?

  • Faulty Fuel Injector 1
  • Fuel Injector 1 harness is open or shorted
  • Fuel Injector 1 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P2147 Dodge?

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 P2147 Dodge 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 P2147 Dodge code?

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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 P2147 Dodge Code

What does the OBDII code P2147 mean on a Dodge vehicle?

P2147 indicates a problem with the Cylinder 1 Injector High Control Circuit, specifically that the voltage is lower than the expected range.

What are the common symptoms of code P2147 in a Dodge?

Symptoms may include rough idling, engine misfires, reduced power, poor fuel efficiency, or difficulty starting the vehicle.

What causes the P2147 code to appear on a Dodge?

Common causes include a faulty fuel injector, damaged wiring or connectors in the injector circuit, a failing Powertrain Control Module (PCM), or a blown fuse.

How can I diagnose the P2147 code on my Dodge?

Inspect the wiring and connectors for damage, test the fuel injector’s resistance with a multimeter, and check for proper voltage at the injector harness.

Can I drive my Dodge with a P2147 code?

Driving with this code is not recommended as it can lead to poor engine performance, potential further damage, and increased emissions.

How do I fix the P2147 code on a Dodge?

Repairs may involve replacing the faulty injector, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the PCM if necessary.

How much does it cost to repair a P2147 code on a Dodge?

Repair costs vary but typically range from $150 to $500 depending on whether the injector, wiring, or PCM needs replacement or repair.

Can a clogged fuel injector cause the P2147 code?

Yes, a clogged or malfunctioning fuel injector can cause the P2147 code due to improper voltage or resistance.

Could a bad PCM cause the P2147 code on my Dodge?

Yes, a failing PCM can cause this code if it is unable to properly control the injector circuit voltage.

What tools are needed to troubleshoot the P2147 code?

You’ll need an OBDII scanner, a multimeter to check voltage and resistance, and possibly wiring diagrams for your Dodge model.

Discuss the causes and fixes for P2147 Dodge OBDII Code

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