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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Automatic Transmission - 6T40 - DTC P0601 To DTC P0971) >> Diagnostic Information and Procedures >> DTC P0601, P0603, P0604, or P062F: Control Module Random Access Memory >> Conditions for Setting the DTC

Conditions for Setting the DTC

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P0601 

TCM has detected a read only memory (ROM) checksum error 5 times.

P0603 

TCM has detected a non-volatile memory checksum error at TCM powerup.

P0604 

TCM has detected a random access memory (RAM) test error 5times.

P062F 

TCM has detected a non-volatile memory error during power-down.

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