width SUBARU LEGACY 1996 Service Owner's Manual

1. Air Conditioning System
A: SPECIFICATIONS
Item Specifications
Type of air conditionerReheat air-mix type
Cooling capacity (IMACA)4.885 kW
(4,200 kcal/h, 16,666 BTU/h)
RefrigerantHFC-134a (CH
2FCF3)
[0.6 — 0.7 kg
(1.3 — 1.5 lb)]
CompressorType 5-vane rotary, fix volume (DKV-14D)
Discharge 140 cm
3(8.54 cu in)/rev
Max. permissible speed 7,000 rpm
Magnet clutchTy p eDry, single-disc type
Power consumption 45 W
Type of belt V-Ribbed 4 PK
Pulley dia. (effective dia.) 125 mm (4.92 in)
Pulley ratio1.064
CondenserType Corrugated fin (Multi-flow)
Core face area 0.215 m
2(2.31 sq ft)
Core thickness 19 mm (0.75 in)
Radiation area 4.7 m
2(51 sq ft)
Receiver drier Effective inner capacity 290 cm3(17.70 cu in)
Expansion valve TypeExternal equalizing
EvaporatorTy p eA
-laminate
Dimensions (W x H x T)74 x 224 x 235 mm
(2.91 x 8.82 x 9.25 in)
Blower fanFan typeSirocco fan
Outer diameter x width 150 x 75 mm (5.91 x 2.95 in)
Power consumption 230 W at 12 V
Condenser fan
(Sub fan)Motor typeMagnet
Power consumption 120 W at 12 V
Fan outer diameter 320 mm (12.60 in)
Radiator fan
(Main fan)Motor typeMagnet
Power consumption 120 W at 12 V
Fan outer diameter 320 mm (12.60 in)
Idling speed with
F.I.C.D. in operationMPFI model 850±100 rpm (700±100 rpm “D” range in AT model)
Dual switch
(Pressure switch)
High-pressure line
B4M0755A
Compressor relief valve
blow-out pressure
B4M0084A
Thermo control
amplifier working
temperature
(Evaporator outlet air)
B4M0756A
2
4-7SPECIFICATIONS
1. Air Conditioning System

G6M0137
4) When tester indicates 12 volts when its probe reaches
point“A”, a broken circuit occurs between point“A”and the
negative terminal. Slowly move tester probe toward the
negative terminal while contacting it on heat wire to locate
point where tester indication changes abruptly (0 volts).
This is the point where a broken circuit occurs.
When tester indicates 0 volts when its probe reaches point
“A”, a broken circuit occurs between point“A”and the posi-
tive terminal. Locate a point where tester indication
changes abruptly (12 volts) while slowly moving tester
probe toward the positive terminal.
G6M0138
C: REPAIR
1) Clean broken wire and its surrounding area.
2) Cut off slit on (used) thin film by 0.5 mm (0.020 in) width
and 10 mm (0.39 in) length.
3) Place the slit on glass along the broken wire, and
deposit conductive silver composition (DUPONT No. 4817)
on the broken portion.
4) Dry out the deposited portion.
5) Inspect the repaired wire for continuity.
B6M0120
13. Combination Meter
A: REMOVAL AND INSTALLATION
1. COMBINATION METER
1) Move steering wheel fully down.
2) Remove screws which secure meter visor.
3) Remove visor from instrument panel.
4) Disconnect connectors from meter visor.
B6M0121
5) Remove screws which secure combination meter, and
pull combination meter out.
6) Disconnect connectors from back of combination meter.
CAUTION:
When installing combination meter, be sure to connect
connectors to backside of combination meter.
33
6-2SERVICE PROCEDURE
12. Rear Window Defogger - 13. Combination Meter

G6M0137
4) When tester indicates 12 volts when its probe reaches
point“A”, a broken circuit occurs between point“A”and the
negative terminal. Slowly move tester probe toward the
negative terminal while contacting it on heat wire to locate
point where tester indication changes abruptly (0 volts).
This is the point where a broken circuit occurs.
When tester indicates 0 volts when its probe reaches point
“A”, a broken circuit occurs between point“A”and the posi-
tive terminal. Locate a point where tester indication
changes abruptly (12 volts) while slowly moving tester
probe toward the positive terminal.
G6M0138
C: REPAIR
1) Clean broken wire and its surrounding area.
2) Cut off slit on (used) thin film by 0.5 mm (0.020 in) width
and 10 mm (0.39 in) length.
3) Place the slit on glass along the broken wire, and
deposit conductive silver composition (DUPONT No. 4817)
on the broken portion.
4) Dry out the deposited portion.
5) Inspect the repaired wire for continuity.
B6M0120
13. Combination Meter
A: REMOVAL AND INSTALLATION
1. COMBINATION METER
1) Move steering wheel fully down.
2) Remove screws which secure meter visor.
3) Remove visor from instrument panel.
4) Disconnect connectors from meter visor.
B6M0121
5) Remove screws which secure combination meter, and
pull combination meter out.
6) Disconnect connectors from back of combination meter.
CAUTION:
When installing combination meter, be sure to connect
connectors to backside of combination meter.
33
6-2SERVICE PROCEDURE
12. Rear Window Defogger - 13. Combination Meter

6. READ DATA FUNCTION KEY LIST FOR ENGINE
Function mode Contents Abbreviation Unit of measure
F00 ROM ID number YEAR—
F01 Battery voltage VB V
F02 Vehicle speed signal VSP km/h, MPH
F03 Engine speed signal EREV rpm
F04 Engine coolant temperature signal TW°C,°F
F05 Ignition signal ADVS deg
F06 Mass air flow signal QA g/s, V
F07 Throttle position signal THV %, V
F08 Injector pulse width TIM mS
F09 Idle air control signal ISC %
F10 Load data LOAD %
F11 Front oxygen sensor output signal O2 V
F12 Front oxygen sensor maximum and minimum output signal O2max - min V, V
F13 Rear oxygen sensor output signal RO2 V
F14 Rear oxygen sensor maximum and minimum output signal RO2max - min V, V
F17 Short term fuel trim ALPHA %
F19 Knock sensor signal KNOCK deg
F20 Atmospheric absolute pressure signal BARO. P kPa, mmHg
F21 Intake manifold absolute pressure signal MANI. P kPa, mmHg
F29 A/F correction (short term trim) by rear oxygen sensor PHOS %
F30 Long term fuel trim KBLRC %
F31 Long term whole fuel trim K0 %
F32 Front oxygen sensor heater current FO2H A
F33 Rear oxygen sensor heater current RO2H A
F35 Purge control solenoid valve duty ratio CPCD %
F36Maximum value of cylinder #1 misfire times during 100 rota-
tionsMF1 %
F37Maximum value of cylinder #2 misfire times during 100 rota-
tionsMF2 %
F38Maximum value of cylinder #3 misfire times during 100 rota-
tionsMF3 %
F39Maximum value of cylinder #4 misfire times during 100 rota-
tionsMF4 %
F42Maximum and minimum EGR system pressure value (AT
vehicles only)EGRmax - min kPa
F43 Fuel tank pressure signal TNKP kPa, mmHg
F44 Fuel temperature signal TNKT°C,°F
F45 Fuel level signal FLEVEL V
FA 0 O N)OFF signal——
FA 1 O N)OFF signal——
FA 2 O N)OFF signal——
FA 3 O N)OFF signal——
FA 4 O N)OFF signal——
FA 5 O N)OFF signal——
FB0 Diagnostic trouble code (DTC) INSPECT—
FB1 Diagnostic trouble code (DTC) OBD—
37
2-7ON-BOARD DIAGNOSTICS II SYSTEM
3. Diagnosis System

B2M0482
14. FUNCTION MODE: F07
—THROTTLE POSITION SIGNAL (THV)—

Throttle position is indicated in percentage (%) and volt-
age (V) at the same time.
NOTE:
Be sure that the displayed value changes smoothly when
changing throttle valve from fully closed to fully opened.
B2M0483
15. FUNCTION MODE: F08
—INJECTOR PULSE WIDTH (TIM)—
B2M0484
16. FUNCTION MODE: F09
—IDLE AIR CONTROL SIGNAL (ISC)—
B2M0485
17. FUNCTION MODE: F10
—LOAD DATA (LOAD)—
B2M0486
18. FUNCTION MODE: F11
—FRONT OXYGEN SENSOR OUTPUT SIGNAL (O2)
—
41
2-7ON-BOARD DIAGNOSTICS II SYSTEM
3. Diagnosis System

G2M0931
(4) Push the TCS OFF switch to ON. (with TCS mod-
els)
(5) Start the engine.
(6) Shift on the gear position, and keep the vehicle
speed at constant.
(7) Measure signal voltage.
Specified voltage: 2 V, or more
NOTE:
If vehicle speed increases, the width of amplitude (W)
decreases.
NOTE:
The speed difference between front and rear wheels may
light either the ABS or the ABS/TCS warning light, but this
indicates no malfunctions. When AT control diagnosis is
finished, perform the ABS or the ABS/TCS memory clear-
ance procedure of self-diagnosis system.

52
3-2AUTOMATIC TRANSMISSION AND DIFFERENTIAL
7. Diagnostic Chart with Trouble Code

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