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.
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HOMESERVICE MANUALSFORD2018F-450 SUPER DUTY LARIAT, 4D PICKUP CREW CAB, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXDTC INDEX (MODULE COMMUNICATIONS - WIPER & WASHER SYSTEM)SEAT SYSTEM DTCSSCMH
2018 Ford F-450 Super Duty Lariat, 4D Pickup Crew Cab, 4WD
Seat System DTCS: SCMH
2018 Ford F-450 Super Duty Lariat, 4D Pickup Crew Cab, 4WDSECTION SCMH
DTC INDEX
| DTC | Description | Action |
|---|---|---|
| B146F:00 | Back Bladder System Electropneumatic Failure: No Sub Type Information | GO to Pinpoint Test AM |
| B146F:04 | Back Bladder System Electropneumatic Failure: System Internal Failure | GO to Pinpoint Test AM |
| B1470:00 | Cushion Bladder System Electropneumatic Failure: No Sub Type Information | GO to Pinpoint Test AM |
| B1470:04 | Cushion Bladder System Electropneumatic Failure: System Internal Failure | GO to Pinpoint Test AM |
| B1471:11 | Multi-Contour Seat Switch Input: Circuit Short To Ground | GO to Pinpoint Test AM |
| B1471:13 | Multi-Contour Seat Switch Input: Circuit Open | GO to Pinpoint Test AM |
| B1471:2A | Multi-Contour Seat Switch Input: Signal Stuck In Range | VERIFY there is no obstruction that may be causing the multi-contour seat switch to be stuck in a certain position. If OK, INSTALL a new seat control switch. Refer to: Front Seat Control Switch . |
| B1473:11 | Pump Driver: Circuit Short To Ground | GO to Pinpoint Test AM |
| U1000:00 | Solid State Driver Protection Activated - Driver Disabled: No Sub Type Information | DIAGNOSE any other related SCMH Diagnostic Trouble Codes (DTCs) first. CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test. If DTC U1000:00 returns. INSTALL a new SCMH. Refer to: Driver Multi-Contour Seat Module [SCMG] . |
| U2100:00 | Initial Configuration Not Complete: no Sub Type Information |
NOTE:
This DTC indicates PMI has not been done to a newly installed module or configuration data has been lost. Using a diagnostic scan tool, CARRY OUT PMI on the SCMH. REPEAT the self-test and VERIFY successful PMI. CLEAR the Diagnostic Trouble Codes (DTCs). |
| U3000:49 | Control Module: Internal Electronic Failure | INSTALL a new SCMH. Refer to: Driver Multi-Contour Seat Module [SCMG] . |
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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.