Engine-Codes - Dodge - P0645 Dodge

P0645 Dodge Code - Air Conditioning Clutch Relay Circuit Malfunction

- Code Popularity: 34,464 Views
- Repair Importance Level: 1/3
- Repair Difficulty Level: 3/3
Table of contents
ChatAC AutoCodes.com AI Chat

What are the Possible Causes of the DTC P0645 Dodge?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Air Conditioning Clutch Relay
  • Air Conditioning Clutch Relay harness is open or shorted
  • Air Conditioning Clutch Relay circuit poor electrical connection
⚠ Does your Dodge have Safety Recalls? → Check here

How to Fix the DTC P0645 Dodge?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Search for P0645 Dodge Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0645 Dodge code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

When is the Code Detected?

The P0645 code is stored if an open or short exists in A/C clutch relay control circuit.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P0645 Dodge Code Mean?

A/C clutch relay may also be referred to as A/C compressor clutch relay. A/C clutch relay circuit is monitored when ignition is on and battery voltage is greater than 10.4 volts.

P0645 Dodge Code - Air Conditioning Clutch Relay Circuit Malfunction

Need more Information on the Code?

Need more information on how to fix the P0645 Dodge code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0645 Dodge code diagnosed by a professional: Find a repair shop in your area