DTC Chart: Powertrain Control Module (PCM)

2021 Ford Edge SE, 4WDSECTION DTC Chart: Powertrain Control Module (PCM)
WARNING: This page is about a different car, the 2019 Ford F-550 Super Duty, 2019 Ford F-450 Super Duty, 2019 Ford F-350 Super Duty, and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .

Powertrain Control Module (PCM) DTC Chart 

DTC Description Action
P0532 A/C Refrigerant Pressure Sensor "A" Circuit Low GO to Pinpoint Test A 
P0533 A/C Refrigerant Pressure Sensor "A" Circuit High GO to Pinpoint Test A 
P0645 A/C Clutch Relay Control Circuit GO to Pinpoint Test B 
P0646 A/C Clutch Relay Control Circuit Low GO to Pinpoint Test B 
P0647 A/C Clutch Relay Control Circuit High GO to Pinpoint Test B 
P145B A/C Demand Not Activated During Self Test If the HVAC selector was not powered on, POWER the HVAC on, CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test. If the DTC returns, GO to Pinpoint Test G 
P1464 A/C Demand Out Of Self Test Range If the HVAC selector was not powered off, POWER the HVAC off, CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test. If the DTC returns, GO to Pinpoint Test H 
P193E A/C Clutch Request Signal GO to Pinpoint Test N 
All Other PCM Diagnostic Trouble Codes (DTCs) -- For 6.2L V8 PCM DTC Chart, REFER to: Electronic Engine Controls .
For 6.8L Triton-30V - V10 PCM DTC Chart, REFER to: Electronic Engine Controls .
For 6.7L Power Stroke Diesel PCM DTC Chart, REFER to: Electronic Engine Controls .
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.