Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2016 Ford Fiesta STFACTORY OEM SERVICE PROCEDURE
Powertrain Control Module (PCM)
DTC INDEX
| DTC | Description | Action |
|---|---|---|
| P0532 | A/C Refrigerant Pressure Sensor "A" Circuit Low | For 1.0L EcoBoost, GO to Pinpoint Test A For 1.6L EcoBoost, GO to Pinpoint Test B For 1.6L Duratec-16V Ti-VCT, GO to Pinpoint Test C |
| P0533 | A/C Refrigerant Pressure Sensor "A" Circuit High | For 1.0L EcoBoost, GO to Pinpoint Test A For 1.6L EcoBoost, GO to Pinpoint Test B For 1.6L Duratec-16V Ti-VCT, GO to Pinpoint Test C |
| P0645 | A/C Clutch Relay Control Circuit | For 1.0L EcoBoost, GO to Pinpoint Test D For 1.6L EcoBoost, GO to Pinpoint Test E For 1.6L Duratec-16V Ti-VCT, GO to Pinpoint Test F |
| P0646 | A/C Clutch Relay Control Circuit Low | For 1.0L EcoBoost, GO to Pinpoint Test D For 1.6L EcoBoost, GO to Pinpoint Test E For 1.6L Duratec-16V Ti-VCT, GO to Pinpoint Test F |
| P0647 | A/C Clutch Relay Control Circuit High | For 1.0L EcoBoost, GO to Pinpoint Test D For 1.6L EcoBoost, GO to Pinpoint Test E For 1.6L Duratec-16V Ti-VCT, GO to Pinpoint Test F |
| P06A0 | Variable A/C Compressor Control Circuit | GO to Pinpoint Test Y |
| P1464 | A/C Demand Out Of Self Test Range | GO to Pinpoint Test L |
| P193E | A/C Clutch Request Signal | GO to Pinpoint Test Z |
| PCM Diagnostic Trouble Codes (DTCs) | PCM Diagnostic Trouble Codes (DTCs) not listed in this chart | For 1.0L EcoBoost, REFER to: Electronic Engine Controls
. For 1.6L EcoBoost, REFER to: Electronic Engine Controls . For 1.6L Duratec-16V Ti-VCT, REFER to: Electronic Engine Controls . |
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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