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.
2018 Ford Expedition MAX SSV, 4WDFACTORY OEM SERVICE PROCEDURE
1-Speed Torque-On-Demand: TCCM
| DTC | Description | Action |
|---|---|---|
| U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | GO to Pinpoint Test G |
| U2002:9E | Switch: Stuck On | GO to PINPOINT TEST K |
| U2009:9E | Rotary Encoder: Stuck On | GO to PINPOINT TEST K |
| U3000:49 | Control Module: Internal Electronic failure | GO to PINPOINT TEST K |
| C1979:00 | IWE Solenoid Circuit Failure: | GO to Pinpoint Test A |
| C1979:11 | Solenoid Circuit Failure: Circuit Short To Ground | GO to Pinpoint Test D |
| C1979:12 | Solenoid Circuit Failure: Circuit Short To Battery | GO to Pinpoint Test D |
| C1979:13 | Solenoid Circuit Failure: Circuit Open | GO to Pinpoint Test D |
| P0562:00 | System Voltage Low: No Sub Type Information | GO to Pinpoint Test C |
| P0562:00 | System Voltage Low: 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 K |
| P1825:00 | 4-Wheel Drive Clutch Relay Open Circuit: No Sub Type Information | GO to Pinpoint Test E |
| P1826:00 | 4-Wheel Drive Low Clutch Relay Circuit To Battery: No Sub Type Information | GO to Pinpoint Test E |
| P1827:00 | 4-Wheel Drive Low Clutch Relay Circuit To Ground: No Sub Type Information | GO to Pinpoint Test E |
| U0100:00 | Lost Communication With ECM/PCM "A": No Sub Type Information | GO to PINPOINT TEST G |
| U0101:00 | Lost Communication with TCM: No Sub Type Information | GO to PINPOINT TEST G |
| U0121:00 | Lost Communication With Anti-Lock Brake System Control Module: No Sub Type Information | GO to PINPOINT TEST G |
| U0138:00 | Lost Communication with All Terrain Control Module: No Sub Type Information | GO to PINPOINT TEST G |
| U0140:00 | Lost Communication With Body 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 H |
| U0439:00 | Invalid Data Received From All Terrain Control Module: No Sub Type Information | GO to Pinpoint Test H |
| U2300:54 | Central Configuration: Missing Calibration | GO to Pinpoint Test J |
| U2300:55 | Central Configuration: Not Configured | GO to Pinpoint Test J |
| U2300:56 | Central Configuration: Invalid/Incompatible Configuration | GO to Pinpoint Test J |
| U2300:64 | Central Configuration: Signal Plausibility Failure | GO to Pinpoint Test J |
| U3000:04 | Control Module: System Internal Failure | GO to Pinpoint Test K |
| U3000:46 | Control Module: Calibration / Parameter Memory Failure | GO to Pinpoint Test K |
| U300D:11 | Ignition Input On/Start: Circuit Short To Ground | 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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