Engine-Codes.com
Engine-Codes – Chrysler – P0647 Chrysler

P0647 Chrysler Code - High Voltage Detected At The AC Clutch Relay

Quick Answer

The P0647 Chrysler code indicates that high voltage has been detected at the AC clutch relay in the vehicle. Common causes include Faulty AC clutch relay, Wiring issues or short circuits in the AC system, Low refrigerant levels in the AC system. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P0647 Chrysler indicates High Voltage Detected At The AC Clutch Relay.
Common causes
Common causes include Faulty AC clutch relay, Wiring issues or short circuits in the AC system, Low refrigerant levels in the AC system.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
What is this?
Table of contents Created and updated by William Orellana on Aug 30, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0647 Chrysler Description

The P0647 Chrysler code indicates that high voltage has been detected at the AC clutch relay in the vehicle. The AC clutch relay is responsible for engaging and disengaging the air conditioning compressor, which plays a crucial role in cooling the interior of the vehicle. When high voltage is detected at the relay, it can lead to various issues with the AC system, causing the compressor to malfunction or fail to engage altogether. This can result in a lack of cooling in the vehicle, especially during hot weather conditions. If left unaddressed, this issue can potentially lead to further damage to the AC system and may result in costly repairs.

OBDII Code P0647 Chrysler - High Voltage Detected At The AC Clutch Relay
P0647 Chrysler Code - High Voltage Detected At The AC Clutch Relay

Common Causes of P0647 Chrysler

  1. Faulty AC clutch relay.
  2. Wiring issues or short circuits in the AC system.
  3. Low refrigerant levels in the AC system.
  4. Malfunctioning AC compressor.
  5. Electrical problems in the vehicle's electrical system.

Symptoms of P0647 Chrysler

  1. Lack of cold air coming from the AC vents.
  2. AC compressor not engaging when the AC is turned on.
  3. AC system blowing warm air instead of cold air.
  4. Unusual noises coming from the AC system.
  5. AC system intermittently working or cutting out unexpectedly.

How to Fix P0647 Chrysler

  1. Begin by diagnosing the issue using a diagnostic scanner to confirm the P0647 code.
  2. Inspect the AC clutch relay and wiring for any signs of damage or corrosion.
  3. Test the AC compressor and refrigerant levels to ensure they are functioning properly.
  4. Replace the faulty AC clutch relay if necessary.
  5. Clear the error code and test the AC system to ensure proper functionality.

Cost to Fix P0647 Chrysler

The typical repair costs for addressing a P0647 Chrysler code can range from $100 to $300, depending on the specific issue causing the high voltage at the AC clutch relay. This estimate includes the cost of parts and labor. However, it's essential to note that actual repair costs can vary based on factors such as the location of the repair shop, the make and model of the vehicle, and the type of engine. Additionally, labor rates at auto repair shops can range from $80 to $150 per hour, with rates potentially higher at dealerships or in metropolitan areas. It's advisable to obtain a detailed quote from a local repair shop for a more accurate cost estimate.

When is the Code Detected?

Code P0647 may be stored if the commanded signal from the AC Clutch circuit does not match the feedback signal.

Need more information about the P0647 Chrysler code?

Need more information on how to fix the P0647 Chrysler code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0647 Chrysler code diagnosed by a professional: Find a repair shop in your area

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 P0647 Chrysler Code

No Frequently Asked Questions about P0647 Chrysler Code found.

Discuss the causes and fixes for P0647 Chrysler OBDII Code

Submit a New Comment

Code P0647 Chrysler comments

No comments found for this page.