DTC P0601: Internal Control Module Memory Checksum Error: Notes

DTC DETECTING CONDITION: 

Detected when two consecutive driving cycles with fault occur.

TROUBLE SYMPTOM: 

TCM ROM malfunction

1. CHECK DTC. 
   1. Perform the Clear Memory Mode using the Subaru Select Monitor. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS)>CLEAR MEMORY MODE 
   2. Read the DTC.

   Is DTC P0601 displayed?

   Yes:  Replace the TCM. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION(TR580)>TRANSMISSION CONTROL MODULE (TCM) Ref. to CONTINUOUSLY VARIABLE TRANSMISSION(TR690)>TRANSMISSION CONTROL MODULE (TCM)

   No:  Current condition is normal. Check for interference from noise, etc.