Subaru Legacy 2003 Service Manual page 670

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
BT:DTC P1111 — ATMOSPHERIC PRESSURE SENSOR CIRCUIT MALFUNC-
TION (HIGH INPUT) —
• DTC DETECTING CONDITION:
• Two consecutive driving cycles with fault
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode<Ref. to EN(H4SO)-47, OPER-
ATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO)-40, OPERATION, Inspection
Mode.> .
1 CHECK ANY OTHER DTC ON DISPLAY.
Does the Subaru Select Monitor or OBD-II
general scan tool indicate DTC P1111?
Step
EN(H4SO)-273
Value
DTC P1111 indicated.
ENGINE (DIAGNOSTICS)
Yes
Replace ECM. It is not necessary
<Ref. to to inspect DTC
FU(H4SO)-45, P1111.
Engine Control
Module.>
NOTE:
Atmospheric pres-
sure sensor is built
into ECM.
No