Subaru Forester 2004 Service Manual page 210

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
BN:DTC P1110 ATMOSPHERIC PRESSURE SENSOR CIRCUIT MALFUNCTION
(LOW INPUT)
DTC DETECTING CONDITION:
Immediately at fault recognition
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H4DOTC 2.5)-42,
OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4DOTC 2.5)-35, OPERATION,
Inspection Mode.>.
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
BO:DTC P1111 ATMOSPHERIC PRESSURE SENSOR CIRCUIT MALFUNCTION
(HIGH INPUT)
DTC DETECTING CONDITION:
Immediately at fault recognition
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H4DOTC 2.5)-42,
OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4DOTC 2.5)-35, OPERATION,
Inspection Mode.>.
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
BP:DTC P1160 RETURN SPRING FAILURE
NOTE:
For diagnostic procedure, refer to DTC P2101. <Ref. to EN(H4DOTC 2.5)-224, DTC P2101 THROTTLE AC-
TUATOR CONTROL MOTOR CIRCUIT RANGE/PERFORMANCE, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
Check
Does the Subaru Select Moni-
tor or OBD-II general scan tool
indicate DTC P1110?
Check
Does the Subaru Select Moni-
tor or OBD-II general scan tool
indicate DTC P1111?
EN(H4DOTC 2.5)-209
ENGINE (DIAGNOSTIC)
Yes
Replace the ECM. Temporary poor
<Ref. to contact occurs.
FU(H4DOTC 2.5)-
41, Engine Con-
trol Module
(ECM).>
NOTE:
Atmospheric pres-
sure sensor is built
in ECM.
Yes
Replace the ECM. Temporary poor
<Ref. to contact occurs.
FU(H4DOTC 2.5)-
41, Engine Con-
trol Module
(ECM).>
NOTE:
Atmospheric pres-
sure sensor is built
in ECM.
No
No