HazBeen
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Special Service Message 53867 - 2025 Expedition/Navigator - DTC B1557:31 Stored In The Rear Gate Trunk Module (RGTM)
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 condition.
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 condition.
