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 Bronco First Edition, 4D UtilityFACTORY OEM SERVICE PROCEDURE
Powertrain Control Module (PCM) Input and Output Controls
| DTC | Description | Action |
|---|---|---|
| P0219:00 | Engine Overspeed Condition: No Sub Type Information | GO to Pinpoint Test Z |
| P0297:00 | Vehicle Overspeed Condition: No Sub Type Information | GO to Pinpoint Test Z |
| P0685:00 | ECM/PCM Power Relay Control Circuit/Open: No Sub Type Information | GO to Pinpoint Test B |
| P068A:00 | ECM/PCM Power Relay De-Energized - Too Early: No Sub Type Information | GO to Pinpoint Test B |
| P06A6:00 | Sensor Reference Voltage A Circuit Range/Performance: No Sub Type Information | GO to Pinpoint Test C |
| P06A7:00 | Sensor Reference Voltage B Circuit Range/Performance: No Sub Type Information | GO to Pinpoint Test C |
| P06A8:00 | Sensor Reference Voltage C Circuit Range/Performance: No Sub Type Information | GO to Pinpoint Test C |
| P06B8:00 | Internal Control Module Non-Volatile Random Access Memory (NVRAM) Error: No Sub Type Information | GO to Pinpoint Test B |
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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