DTC P0604 Internal Control Module Random Access Memory (Ram) Error: Notes

DTC DETECTING CONDITION:

Detected when two consecutive driving cycles with fault occur.

TROUBLE SYMPTOM:

TCM RAM malfunction

Step	Check	Yes	No
1 CHECK DTC . Perform the Clear Memory Mode using the Subaru Select Monitor. <Ref. to CLEAR MEMORY MODE .> Read the DTC.	Is DTC P0604 displayed?	Replace the TCM. <Ref. to TRANSMISSION CONTROL MODULE (TCM) .> <Ref. to TRANSMISSION CONTROL MODULE (TCM) .>	Current condition is normal. Check for interference from noise, etc.