Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer communications
2Original wording in English
FORD, LINCOLN
Some 2025 Expedition/Navigator vehicles may exhibit diagnostic trouble code (DTC) B1557:31 in the rear gate trunk module (RGTM) when a diagnostic self-test is performed. If no other symptoms, DTCs or conditions are identified, no further action is required. Replacement and/or reprogramming of the RGTM will not resolve this condi…
FORD, LINCOLN
Some 2025 Expedition/Navigator vehicles may exhibit diagnostic trouble codes (DTCs) B144F:19, B144F:13, B1557:19, B1557:31 and/or B15E8:19 in the rear gate trunk module (RGTM) when a diagnostic self-test is performed. If no other symptoms, DTCs, or issues are identified, no further action is required. Replacement and/or reprogra…
Check vehicle applicability
2A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ford | EXPEDITION ↗ | 2025 |
| Lincoln | NAVIGATOR ↗ | 2025 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Ignition Run/Start Circuit Short To Battery
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.