1996 SUBARU LEGACY Electrical engine

2. CRUISE CANCEL CONDITIONS DIAGNOSIS
1) Connect select monitor.
2) Start the engine and turn cruise control main switch to
ON.
3) Set select monitor in“FB0”mode.
4) Drive vehicle at least 40 km/h (25 MPH) with cruise
speed set.
5) If cruise speed is canceled itself (without doing any
cancel operations), a trouble code will appear on select
monitor display.
CAUTION:

A trouble code will also appear when cruise cancel
is effected by driver. Do not confuse.

Have a co-worker ride in vehicle to assist in diagno-
sis during driving.
NOTE:
Trouble code will be cleared by turning ignition switch or
cruise control main switch to OFF.
3. REAL-TIME DIAGNOSIS
1) Connect select monitor.
2) Turn ignition switch and cruise control main switch to
ON.
3) Set select monitor in“FA 0”mode.
4) Ensure that normal indication is displayed when con-
trols are operated as indicated below:

When SET/COAST switch is pressed.

When RESUME/ACCEL switch is pressed.

When brake pedal is depressed. (Stop and brake switch
turns ON.)

When clutch pedal is depressed. (MT model)

When select lever is set to N position. (AT model)
10
6-2BODY ELECTRICAL SYSTEM
6. Diagnostics Chart for On-board Diagnosis System

G2M0931
B6M0287
3) Start the engine.
4) Shift on the gear position, and keep the vehicle speed
at constant.
5) Measure signal voltage.
Specified voltage (V): 2 V, or more
NOTE:

If the vehicle speed increases, the width of amplitude
(W) decreases.

If oscilloscope is not available, check input signal
(vehicle speed signal) by using a select monitor. (Refer to
the procedure as described below.)

Using the select monitor:
(1) Set the vehicle on free roller, or lift-up the vehicle and
support with safety stands.
(2) Turn ignition switch to OFF and set select monitor.
(3) Turn ignition switch to ON.
(4) Turn cruise control main switch to ON.
(5) Set select monitor in“F01”or“F02”mode.
(6) Drive the vehicle at speed greater than 40 km/h (25
MPH).
(7) Check that vehicle speed indication on select moni-
tor and speedometer are equal.
NOTE:

When there is a disconnection or short circuit in the har-
ness between the meter and the cruise control module, the
indicated value will be 0 to 1.0 km/h (0 to 0.6 MPH).

In“F01”mode, vehicle speed is indicated in mile per
hour (MPH).
In“F02”mode, vehicle speed is indicated in kilometer per
hour (km/h).
B3M0250
3. PERFORM A CIRCUIT TEST BETWEEN
COMBINATION METER AND CRUISE CONTROL
MODULE.
1) Turn ignition switch to OFF.
2) Remove combination meter.
B6M0194B
3) Disconnect connector from cruise control module.
4) Measure resistance of harness connector between
combination meter and cruise control module.
Connector & terminal / Specified resistance:
(i10) No. 10—(B94) No. 19 / 10Ω, max.
24
6-2BODY ELECTRICAL SYSTEM
8. Diagnostics Chart with Trouble Code

13. ENGINE ELECTRICAL SYSTEM

LHD model
BU10-04A
51
6-3WIRING DIAGRAM
6. Wiring Diagram

13. ENGINE ELECTRICAL SYSTEM

RHD model
BUR10-03A
55
6-3WIRING DIAGRAM
6. Wiring Diagram

7. Electrical Unit Location
Electrical unit Refer to;
A.B.S. control module 4-4a [T300]
A.B.S. G sensor (MT) 4-4a [T300]
A/C compressor relay
7
A/C fuse11
A/C main fan relay 110
A/C main fan relay 28
A/C pressure switch2
A/C sub fan relay 29
ATF temperature sensor 2-7 [T2B1]
Blower motor resistor
26
Blower relay13
Camshaft position sensor 2-7 [T2A2]
Check connector
25
Clutch switch (MT) 6-2 [T300]
Crankshaft position sensor 2-7 [T2A2]
Cruise control module 6-2 [T300]
Cruise control pump 6-2 [T300]
Data link connector (for OBD-II G.S.T.) 2-7 [T2A1]
Data link connector (for S.S.M.) 2-7 [T2A1]
Diagnosis connector 4-4a [T300]
Diagnosis terminal (Ground) 4-4a [T300]
Door lock timer
27
Engine control module 2-7 [T2A1]
Engine coolant temperature sensor 2-7 [T2A2]
Engine hood switch (Security) 6-2 [K6A0]
Evaporator thermoswitch
29
F/B15
FRESH/RECIRC actuator28
Fuel pump relay 2-7 [T2A3]
Fuel gauge module
31
Fuel gauge sub module (AWD)32
FWD switch (AT)1
Headlight alarm relay (Security) 6-2 [K6A0]
Headlight relay LH
5
Headlight relay RH6
Horn relay14
Electrical unit Refer to;
Hydraulic unit (A.B.S.) 4-4a [T300]
Ignition coil 2-7 [T2A3]
Ignitor 2-7 [T2A3]
Idle air control solenoid valve 2-7 [T2A3]
Illumination control module
21
Inhibitor switch 6-2 [T300]
Knock sensor 2-7 [T2A2]
Main fan relay
19
Main relay 2-7 [T2A3]
Mass air flow sensor 2-7 [T2A2]
Mode actuator
12
M/B4
Oil pressure switch3
Oxygen sensor 2-7 [T2A2]
Pedal stroke sensor (T.C.S.) 4-4b [T300]
Power window and sunroof relay
24
Power window circuit breaker23
Purge control solenoid valve 2-7 [T2A3]
Rear defogger relay
17
Seat belt timer20
Security control module 6-2 [K6A0]
Shift lock control module
22
Starter interrupt relay (Security) 6-2 [K6A0]
Stop & brake switch (With cruise con-
trol)6-2 [T300]
Sunroof control module
30
Tail and illumination relay18
T.C.S. control module 4-4b [T300]
T.C.S. motor relay 4-4b [T300]
T.C.S. valve relay 4-4b [T300]
Throttle position sensor 2-7 [T2A2]
Test mode connector 2-7 [T2A1]
Transmission control module 2-7 [T2B1]
Turn & hazard module
16
Vehicle speed sensor 1 2-7 [T2B1]
Vehicle speed sensor 2 2-7 [T2B1]
107
6-3WIRING DIAGRAM
7. Electrical Unit Location

1. ENGINE ROOM
B2M0018D
1FWD switch (AT)

2A/C pressure switch

3Oil pressure switch

4M/B

5Headlight relay LH

6Headlight relay RH
7A/C compressor relay

8A/C main fan relay 2

9A/C sub fan relay 2

10A/C main fan relay 1

11A/C fuse
108
6-3WIRING DIAGRAM
7. Electrical Unit Location

8. Electrical Wiring Harness and
Ground Point
B6M0267A
1Front wiring harness

2Engine wiring harness

3Room light cord

4Bulkhead wiring harness

5Instrument panel wiring harness

6Front door cord RH

7Rear door cord RH

8Rear wiring harness

9Trunk lid cord (Sedan)
10Rear defogger ground cord (Sedan)

11Fuel tank cord

12Rear door cord LH

13Front door cord LH

14Sunroof cord

15Floor wiring harness

16Transmission cord

17Rear gate cord (Wagon)

18Rear oxygen sensor cord
11 3
6-3WIRING DIAGRAM
8. Electrical Wiring Harness and Ground Point

2. BULKHEAD WIRING HARNESS AND GROUND POINT (IN ENGINE ROOM)

LHD model
EPA0097
11 8
6-3WIRING DIAGRAM
8. Electrical Wiring Harness and Ground Point