AutoCodes.com | All About OBDII Engine Codes
AutoCodes - Ford - P0645 2009 Ford Fusion

P0645 2009 Ford Fusion Code - Air Conditioning Clutch Relay Circuit Malfunction

- Code Popularity: 2,482 Views
- Repair Importance Level: 1/3
- Repair Difficulty Level: 3/3
Table of contents
Share on Facebook   Share on Twitter   Share on Linkedin

What are the Possible Causes of the DTC P0645 2009 Ford Fusion?

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
  • Faulty Powertrain Control Module (PCM)
⚠ Does your Ford have Safety Recalls? → Check here

How to Fix the DTC P0645 2009 Ford Fusion?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Search for P0645 2009 Ford Fusion Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0645 2009 Ford Fusion code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code P0645 2009 Ford Fusion Description

The Powertrain Control Module (PCM) monitors the Air Conditioning Clutch Relay (A/CCR) circuit. The Diagnostic Trouble Code (DTC) when the PCM grounds the Air Conditioning Clutch Relay circuit, excessive current draw is detected on the Air Conditioning Clutch Relay circuit; or, with the Air Conditioning Clutch Relay circuit not grounded by the PCM, voltage is not detected on the Air Conditioning Clutch Relay circuit (the PCM expects to detect VPWR voltage coming through the Air Conditioning Clutch Relay coil to the Air Conditioning Clutch circuit). The PCM detects an open or short exists in Air Conditioning Clutch Relay control circuit.

OBDII Code P0645 2009 Ford Fusion - Air Conditioning Clutch Relay Circuit Malfunction - AutoCodes.com
P0645 2009 Ford Fusion Code - Air Conditioning Clutch Relay Circuit Malfunction

Need More Information on the Code?

Need more information on how to fix the P0645 2009 Ford Fusion code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0645 2009 Ford Fusion code diagnosed by a professional: Find a repair shop in your area

Code P0645 2009 Ford Fusion comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P0645 2009 Ford Fusion code? Have you replaced any parts?
Any information is appreciated. Thanks