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.
2021 Ford Explorer XLT, RWDFACTORY OEM SERVICE PROCEDURE
3.3L Duratec-V6 3.3L Duratec-V6 - Hybrid
| DTC | Description | Action |
|---|---|---|
| P025A:00 | Fuel Pump Module "A" Control Circuit/Open: No Sub Type Information | GO to Pinpoint Test H |
| P025B:00 | Fuel Pump Module "A" Control Circuit Range/Performance: No Sub Type Information | GO to Pinpoint Test H |
| P025C:00 | Fuel Pump Module "A" Control Circuit Low: No Sub Type Information | GO to Pinpoint Test H |
| P025D:00 | Fuel Pump Module "A" Control Circuit High: No Sub Type Information | GO to Pinpoint Test H |
| P027B:00 | Fuel Pump Module "B" Control Circuit Range/Performance: No Sub Type Information | GO to Pinpoint Test H |
| P0521:00 | Engine Oil Pressure Sensor/Switch "A" Circuit Range/Performance: No Sub Type Information | GO to Pinpoint Test I |
| P0524:00 | Engine Oil Pressure Too Low: No Sub Type Information | GO to Pinpoint Test I |
| P06DA:00 | Engine Oil Pressure Control Circuit/Open: No Sub Type Information | GO to Pinpoint Test J |
| P06DB:00 | Engine Oil Pressure Control Circuit Low: No Sub Type Information | GO to Pinpoint Test J |
| P06DC:00 | Engine Oil Pressure Control Circuit High: No Sub Type Information | GO to Pinpoint Test J |
| P06DD:00 | Engine Oil Pressure Control Circuit Performance/Stuck Off: No Sub Type Information | GO to Pinpoint Test I |
| P06DE:00 | Engine Oil Pressure Control Circuit Stuck On: No Sub Type Information | GO to Pinpoint Test I |
| P1001:00 | KOER Not Able to Complete, KOER Aborted: No Sub Type Information | GO to Pinpoint Test K |
| P1060:00 | Excessive Engine Component Deterioration: No Sub Type Information | GO to Pinpoint Test L |
| P1061:00 | Excessive Engine Component Deterioration - Forced Limited Engine Speed: No Sub Type Information | GO to Pinpoint Test L |
| P166A:00 | Restraints Deployment Communication Circuit: No Sub Type Information | GO to Pinpoint Test M |
| P1A0C:00 | Hybrid Powertrain Control Module - Engine Disabled: No Sub Type Information | GO to Pinpoint Test N |
| U0103:00 | Lost Communication With Gear Shift Control Module A: No Sub Type Information | GO to Pinpoint Test A |
| U0104:00 | Lost Communication With Cruise Control Module: No Sub Type Information | GO to Pinpoint Test B |
| U0121:00 | Lost Communication With Anti-Lock Brake System (ABS) Control Module "A": No Sub Type Information | GO to Pinpoint Test C |
| U0126:00 | Lost Communication With Steering Angle Sensor Module: No Sub Type Information | GO to Pinpoint Test D |
| U0164:00 | Lost Communication With HVAC Control Module: No Sub Type Information | GO to Pinpoint Test E |
| U0212:00 | Lost Communication With Steering Column Control Module: No Sub Type Information | GO to Pinpoint Test D |
| U023A:00 | Lost Communication With Image Processing Module A: No Sub Type Information | GO to Pinpoint Test F |
| U0404:00 | Invalid Data Received from Gear Shift Control Module A: No Sub Type Information | GO to Pinpoint Test G |
| U0405:00 | Invalid Data Received From Cruise Control Module: No Sub Type Information | GO to Pinpoint Test G |
| U0418:00 | Invalid Data Received from Brake System Control Module "A": No Sub Type Information | GO to Pinpoint Test G |
| U0439:00 | Invalid Data Received From All Terrain Control Module: No Sub Type Information | GO to Pinpoint Test G |
| U0452:00 | Invalid Data Received From Restraints Control Module: No Sub Type Information | GO to Pinpoint Test G |
| U049C:00 | Invalid Data Received From Battery Charger Control Module "A": No Sub Type Information | GO to Pinpoint Test G |
| U1010:00 | Invalid Internal Control Module Monitoring Data Received from Hybrid Powertrain Control Module: No Sub Type Information | GO to Pinpoint Test G |
| U101E:00 | Invalid Internal Control Module Monitoring Data Received from Gear Shift Module: No Sub Type Information | GO to Pinpoint Test G |
| U101F:00 | Invalid Internal Control Module Monitoring Data Received from Transmission Range Control Module: No Sub Type Information | GO to Pinpoint Test G |
| U102F:00 | Invalid Internal Control Module Monitoring Data Received From All Wheel Drive Control Module: No Sub Type Information | GO to Pinpoint Test G |
Factory Service Tools
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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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