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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 218 (Transfer Case - BW 4474) >> Diagnostic Information and Procedures >> DTC P0601-P0604 or P062F: Control Module >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

P0601 

The read only memory (ROM), or the masked ROM, of the transfer case control module has failed the Checksum test indicating that the data is not currently valid.

P0604 

The random access memory (RAM) of the transfer case control module has failed an operational test indicating that some portions of RAM are non-functional.

P062F 

The critical operational parameters stored in the EEPROM of the transfer case control module have failed the Checksum test indicating invalid data.

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