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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 6T70 - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC P0601, P0602, P0603, P0604, or P062F: Control Module >> Conditions for Setting the DTC

Conditions for Setting the DTC

P0601 

Read only memory (ROM) test has failed 5 or greater times.

P0602 

TCM has not been programmed and is unable to detect the start program.

P0603 

TCM has detected a memory checksum error.

P0604 

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

P062F 

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

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