1997 SUBARU LEGACY Service Repair Manual

Page 2377 of 3342

SUBARU LEGACY 1997  Service Repair Manual B2M1128
CG: DTC P1143
—PRESSURE SENSOR CIRCUIT
RANGE/PERFORMANCE PROBLEM (LOW
INPUT)—
WIRING DIAGRAM:
B2M0786
NOTE:
Check pressure sensor circuit.
<Ref. to 2-7 [T10CJ0].>
526
2-7ON-BOARD DIAGNOSTI

Page 2378 of 3342

SUBARU LEGACY 1997  Service Repair Manual B2M1129
CH: DTC P1144
—PRESSURE SENSOR CIRCUIT
RANGE/PERFORMANCE PROBLEM (HIGH
INPUT)—
WIRING DIAGRAM:
B2M0786
NOTE:
Check pressure sensor circuit.
<Ref. to 2-7 [T10CK0].>
527
2-7ON-BOARD DIAGNOST

Page 2379 of 3342

SUBARU LEGACY 1997  Service Repair Manual B2M1130
CI: DTC P1400
—FUEL TANK PRESSURE CONTROL
SOLENOID VALVE CIRCUIT LOW INPUT—
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
WIRING DIAGRAM:
B2M1154
CAUTION:
After repai

Page 2380 of 3342

SUBARU LEGACY 1997  Service Repair Manual H2M1408B
11CI1
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 2381 of 3342

SUBARU LEGACY 1997  Service Repair Manual B2M0931A
4) Measure resistance of harness between ECM and fuel
tank pressure control solenoid valve connector.
: Connector & terminal
(B84) No. 10—(R68) No. 2:
Is the voltage less than 1Ω?
: Go to

Page 2382 of 3342

SUBARU LEGACY 1997  Service Repair Manual B2M0932A
11CI4CHECK POWER SUPPLY TO FUEL TANK
PRESSURE CONTROL SOLENOID
VA LV E .
1) Turn ignition switch to ON.
2) Measure voltage between fuel tank pressure control
solenoid valve and chassis ground

Page 2383 of 3342

SUBARU LEGACY 1997  Service Repair Manual B2M1131
CJ: DTC P1420
—FUEL TANK PRESSURE CONTROL
SOLENOID VALVE CIRCUIT HIGH INPUT—
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
WIRING DIAGRAM:
B2M1154
CAUTION:
After repa

Page 2384 of 3342

SUBARU LEGACY 1997  Service Repair Manual H2M1408B
11CJ1
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