1997 SUBARU LEGACY Service Repair Manual

Page 2225 of 3342

SUBARU LEGACY 1997  Service Repair Manual B2M1131
CM: DTC P1420
—FUEL TANK PRESSURE CONTROL
SOLENOID VALVE CIRCUIT HIGH INPUT—
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
WIRING DIAGRAM:
B2M0928
CAUTION:
After repa

Page 2226 of 3342

SUBARU LEGACY 1997  Service Repair Manual H2M1408B
10CM1
CHECK OUTPUT SIGNAL FROM ECM.
1) Turn ignition switch to ON.
2) Measure voltage between ECM and chassis ground.
: Connector & terminal
(B84) No. 10 (+)—Chassis ground (�):
Is the volt

Page 2227 of 3342

SUBARU LEGACY 1997  Service Repair Manual B2M0929
5) Turn ignition switch to OFF.
6) Measure resistance between fuel tank pressure control
solenoid valve terminals.
: Terminals
No. 1—No. 2:
Is the resistance less than 1Ω?
: Replace fuel t

Page 2228 of 3342

SUBARU LEGACY 1997  Service Repair Manual B2M1132
CN: DTC P1421
—EXHAUST GAS RECIRCULATION CIRCUIT
HIGH INPUT—
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Poor driving performance on low engine sp

Page 2229 of 3342

SUBARU LEGACY 1997  Service Repair Manual 10CN1
CHECK ENGINE/TRANSMISSION TYPE.
: Is engine/transmission type 2200 cc/MT?
: Check AT/MT identification circuit. <Ref. to 2-7
[T10DD0].>
: Go to step10CN2.
B2M0566A
10CN2
CHECK OUTPUT SIGNAL FROM

Page 2230 of 3342

SUBARU LEGACY 1997  Service Repair Manual OBD0327
5) Turn ignition switch to OFF.
6) Measure resistance between EGR solenoid valve ter-
minals.
: Terminals
No. 1—No. 2:
Is the resistance less than 1Ω?
: Replace EGR solenoid valve and ECM.

Page 2231 of 3342

SUBARU LEGACY 1997  Service Repair Manual B2M1133
CO: DTC P1422
—EVAPORATIVE EMISSION CONTROL
SYSTEM PURGE CONTROL VALVE CIRCUIT
HIGH INPUT—
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Erroneous i

Page 2232 of 3342

SUBARU LEGACY 1997  Service Repair Manual B2M0570A
10CO1
CHECK OUTPUT SIGNAL FROM ECM.
1) Turn ignition switch to ON.
2) Measure voltage between ECM and chassis ground.
: Connector & terminal
(B84) No. 72 (+)—Chassis ground (�):
Is the volt