1997 SUBARU LEGACY Service Repair Manual

Page 2017 of 3342

SUBARU LEGACY 1997  Service Repair Manual OBD0702A
7) Measure resistance of harness between throttle posi-
tion sensor connector and engine ground.
: Connector & terminal
(E13) No. 2—Engine ground:
Is the resistance less than 10Ω?
: Repai

Page 2018 of 3342

SUBARU LEGACY 1997  Service Repair Manual B2M1071
L: DTC P0123
—THROTTLE POSITION SENSOR CIRCUIT
HIGH INPUT—
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Poor driving perfo

Page 2019 of 3342

SUBARU LEGACY 1997  Service Repair Manual OBD0145A
10L1CONNECT SUBARU SELECT MONITOR
OR THE OBD-II GENERAL SCAN TOOL,
AND READ DATA.
1) Turn ignition switch to OFF.
2) Connect Subaru Select Monitor or the OBD-II general
scan tool to data link

Page 2020 of 3342

SUBARU LEGACY 1997  Service Repair Manual OBD0703A
10L2CHECK HARNESS BETWEEN THROTTLE
POSITION SENSOR AND BODY CON-
NECTOR.
1) Turn ignition switch to OFF.
2) Disconnect connector from throttle position sensor.
3) Measure resistance of harnes

Page 2021 of 3342

SUBARU LEGACY 1997  Service Repair Manual OBD0191
M: DTC P0125
—INSUFFICIENT COOLANT TEMPERATURE
FOR CLOSED LOOP FUEL CONTROL—
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Engine would not return t

Page 2022 of 3342

SUBARU LEGACY 1997  Service Repair Manual 10M1CHECK DTC P0116 OR P0117 ON DIS-
PLAY.
: Does the Subaru select monitor or OBD-II
general scan tool indicate DTC P0116 or
P0117?
: Inspect DTC P0116 or P0117 using“10. Diagnos-
tics Chart with T

Page 2023 of 3342

SUBARU LEGACY 1997  Service Repair Manual OBD0199
N: DTC P0130
—FRONT OXYGEN SENSOR CIRCUIT
MALFUNCTION—
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
WIRING DIAGRAM:
B2M1072
CAUTION:
After repair or replacement of f

Page 2024 of 3342

SUBARU LEGACY 1997  Service Repair Manual 10N1CHECK FOR OTHER CAUSES AFFECT-
ING EXHAUST GAS.
: Is CO % more than 2 % after engine warm-
up?
: Check fuel system.
NOTE:
Check for use of improper fuel.
Check if engine oil or coolant level is