DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
No.
1
CHECK ANY OTHER DTC ON DISPLAY.
Step
Does the Subaru Select
Monitor or OBD-II general
scan tool indicate DTC
P0604?
EN(H6)-263
Check
Yes
Replace ECM.
<Ref. to FU(H6)-
47, Engine Con-
trol Module.>
Engine (DIAGNOSTICS)
No
It is not necessary
to inspect DTC
P0604.