1995 SUBARU LEGACY diagram

1.Check air intake system.
2.Check output signal from ECM.

3.Check idle air control solenoid valve.
4.Check power supply to idle air control
solenoid valve.
5.Check harness connector between ECM and
idle air control solenoid valve.
CAUTION:
After repair or replacement of faulty parts, conduct
CLEAR MEMORY and INSPECTION MODES. [T3D0] and [T3E0].>
WIRING DIAGRAM:

LHD model
OBD0360




257
2-7ON-BOARD DIAGNOSTICS II SYSTEM
11. Diagnostics Chart with Trouble Code

WIRING DIAGRAM:

RHD model
B2M0457
258
2-7ON-BOARD DIAGNOSTICS II SYSTEM
11. Diagnostics Chart with Trouble Code

AK: DTC P0600
—SERIAL COMMUNICATION LINK
MALFUNCTION—
DESCRIPTION:
The serial communication link circuit monitors data com-
munication between scan tool and ECM.
DTC DETECTING CONDITION:

Two consecutive trips with fault
1.Check harness.
CAUTION:
After repair or replacement of faulty parts, conduct
CLEAR MEMORY and INSPECTION MODES. [T3D0] and [T3E0].>
WIRING DIAGRAM:

LHD model
B2M0627
266
2-7ON-BOARD DIAGNOSTICS II SYSTEM
11. Diagnostics Chart with Trouble Code

WIRING DIAGRAM:

RHD model
B2M0458
OBD0722A
1
CHECK HARNESS.
1) Turn ignition switch to OFF.
2) Disconnect connector from ECM.
3) Measure resistance of harness connector between
ECM and data link connector (for OBD-II general scan
tool).
: Connector & terminal
(B84) No. 41—(B40) No. 10 / 10Ω, or less
: Repair open circuit of harness between ECM con-
nector and data link connector.
: Go to the next step.
267
2-7ON-BOARD DIAGNOSTICS II SYSTEM
11. Diagnostics Chart with Trouble Code

WIRING DIAGRAM:

LHD model
OBD0377
WIRING DIAGRAM:

RHD model
B2M0459
269
2-7ON-BOARD DIAGNOSTICS II SYSTEM
11. Diagnostics Chart with Trouble Code

OBD0586
AM: DTC P0703
—BRAKE SWITCH INPUT MALFUNCTION
(BRK)—
DTC DETECTING CONDITION:

Two consecutive trips with fault
1.Check operation of brake light.
2.Check harness connector between TCM and
brake light switch.
3.Check input signal for TCM.
CAUTION:
After repair or replacement of faulty parts, conduct
CLEAR MEMORY and INSPECTION MODES. [T3D0] and [T3E0].>
WIRING DIAGRAM:
OBD0587


271
2-7ON-BOARD DIAGNOSTICS II SYSTEM
11. Diagnostics Chart with Trouble Code

1.Check harness connector between TCM and
inhibitor switch.
2.Check inhibitor switch.
3.Check input signal for TCM.
CAUTION:
After repair or replacement of faulty parts, conduct
CLEAR MEMORY and INSPECTION MODES. [T3D0] and [T3E0].>
WIRING DIAGRAM:
OBD0594


275
2-7ON-BOARD DIAGNOSTICS II SYSTEM
11. Diagnostics Chart with Trouble Code

1.Check harness connector between TCM and
ATF temperature sensor.
2.Check ATF temperature sensor.
3.Check input signal for TCM.
CAUTION:
After repair or replacement of faulty parts, conduct
CLEAR MEMORY and INSPECTION MODES. [T3D0] and [T3E0].>
WIRING DIAGRAM:
OBD0383
NOTE:
For the diagnostic procedure on transmission fluid tem-
perature sensor circuit, refer to“3-2 [T7G0]”.


280
2-7ON-BOARD DIAGNOSTICS II SYSTEM
11. Diagnostics Chart with Trouble Code