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.
2011 Ford Explorer Base, FWD, 6F55FACTORY OEM SERVICE PROCEDURE
Diagnostic Routine(S): Notes
DIAGNOSTIC ROUTINE(S)
| DTC | Description | Reference |
| U3003:16 | Battery Voltage | Diagnostic Routine A |
| C0030:07, C0033:07, C0036:07, C0039:07, C0031:29, C0031:64, C0034:29, C0034:64, C0037:29, C0037:64, C003A:29, C003A:64, C0031:2F, C0034:2F, C0037:2F, C003A:2F | Tone Wheel | Diagnostic Routine B |
| C0044:28, C0044:49, C0044:64 | Brake Pressure Sensor A | Diagnostic Routine C |
| C0040:64 | Brake Pedal Switch A | Diagnostic Routine E |
| U0100:00 | Lost Communication With ECM/PCM A | Diagnostic Routine F |
| U0104:00 | Lost Communication With Cruise Control Module | Diagnostic Routine G |
| U0140:00 | Lost Communicatin With Body Control Module | Diagnostic Routine I |
| U0151:00 | Lost Communicatin With Restraints Control Module | Diagnostic Routine K |
| U3002:62 | Vehicle Identificatin Number | Diagnostic Routine L |
| U3003:17 | Battery Voltage | Diagnostic Routine P |
| C101A:1C, 2A, 2F or 62 | Vaccum Pressure Sensor | Diagnostic Routine Q |
| U0131:00 | Lost Communication With Power Steering Control Module | Diagnostic Routine S |
| U0138:00 | Lost Communication With All Terrain Control Module | Diagnostic Routine T |
| C0020:13 or 71 | ABS Pump Motor Control | Diagnostic Routine V |
| C0061:28, C0061:64, C0062:28, C0062:64, C0062:76, C0063:28, C0063:64, C0064:28, C0064:64, U0151:88 | Lateral Acceleration Sensor | Diagnostic Routine W |
| C1B14:11, 12 or U3000:47 | Sensor Supply Voltage A | Diagnostic Routine AE |
| C0031:01, C0031:19, C0034:01, C0034:19 | Front Wheel Speed Sensor | Diagnostic Routine AJ |
| C0037:01, C0037:19, C003A:01, C003A:19, C0037:95, C003A:95 | Rear Wheel Speed Sensor | Diagnostic Routine AK |
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.