1995 SUBARU LEGACY Service Repair Manual

Page 1441 of 2248

SUBARU LEGACY 1995  Service Repair Manual OBD0323
AC: DTC P0403
—EXHAUST GAS RECIRCULATION CIRCUIT
MALFUNCTION (EGRSOL)—
OBD0324A
DESCRIPTION:
The EGR solenoid valve is situated between the BPT and
EGR valve. EGR solenoid valve is opened

Page 1442 of 2248

SUBARU LEGACY 1995  Service Repair Manual WIRING DIAGRAM:
LHD model
OBD0325
236
2-7ON-BOARD DIAGNOSTICS II SYSTEM
11. Diagnostics Chart with Trouble Code

Page 1443 of 2248

SUBARU LEGACY 1995  Service Repair Manual WIRING DIAGRAM:
RHD model
B2M0454
1
CHECK TRANSMISSION TYPE.
Refer to flow chart on page 235.
OBD0326A
2
CHECK OUTPUT SIGNAL FROM ECM.
1) Turn ignition switch to ON.
2) Measure signal voltage between

Page 1444 of 2248

SUBARU LEGACY 1995  Service Repair Manual OBD0326A
3
CHECK HARNESS.
1) Turn ignition switch to OFF.
2) Disconnect connector from EGR solenoid valve.
3) Turn ignition switch to ON.
4) Measure voltage between ECM and body.
: Connector & termina

Page 1445 of 2248

SUBARU LEGACY 1995  Service Repair Manual : Repair short circuit of harness between ECM con-
nector and EGR solenoid valve connector.
: Go to the next step.
OBD0677A
4) Measure resistance of harness connector between
ECM and EGR solenoid valv

Page 1446 of 2248

SUBARU LEGACY 1995  Service Repair Manual OBD0329
AD: DTC P0420
—CATALYST SYSTEM EFFICIENCY BELOW
THRESHOLD (CAT)—
DESCRIPTION:
The three-way catalyst is an oval shaped honeycomb
monolith ceramic. Its porous surface is coated with plati-

Page 1447 of 2248

SUBARU LEGACY 1995  Service Repair Manual 1.Check any other DTC P0130, P0133, P0135,
P0136, P0139 and P0141 on display.
2.Check exhaust system.
3.Check rear catalytic converter.
CAUTION:
After repair or replacement of faulty parts, conduct
CL

Page 1448 of 2248

SUBARU LEGACY 1995  Service Repair Manual WIRING DIAGRAM:
RHD model
B2M0455
242
2-7ON-BOARD DIAGNOSTICS II SYSTEM
11. Diagnostics Chart with Trouble Code