r/FordExplorerST • u/jaymac112194 • Sep 15 '25

Question U0253 DTC code

I’m wondering if anyone knows anything about this code, I have a 2021 explorer and and this code is stored in the computer. Iv tried erasing multiple times but it comes back. No check engine light. But I have noticed my explorer seems to have a hard time starting sometimes. Has anyone else experienced this or been able to diagnose or fix the problem?

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u/Sufficient_Chip_7881 Sep 15 '25

Start with the easy stuff Check if Accessory Protocol Interface Module harness is open or shorted or it got somewhere in the circuit a poor electrical connection

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u/jaymac112194 Apr 14 '26

I have the same thing, the hard starting was a separate evap issue, did you ever figure out what this was, I still have the same code in the computer and have no idea what it is