FixVault
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ProMaster City Base
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Engine Performance
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2.4L - DTCS P2122 To U1504
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DTC Troubleshooting
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U0300-Internal Control Module Software Incompatibility
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Default Action
Default Action
This fault is set as active on the first trip that the diagnostic fails.
The fault will not illuminate the MIL.
The fault will clear on the third consecutive trip that the diagnostic passes.