FixVault
Home
›
Subaru
›
2018
›
Outback 2.5i
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Control System (Diagnostics) (P0171 To P0685) (H4DO)
›
Diagnostic Procedure With Diagnostic Trouble Code (DTC)
›
DTC P0604: Internal Control Module Random Access Memory (Ram) Error
›
Execution Condition
Execution Condition
Secondary Parameters
Execution condition
None
Diagnosis with the initial routine.