SUBARU LEGACY 1996 Service Repair Manual

G6M0093
B: INSPECTION
Using accurate tester, inspect the following items, and
replace if defective.
1) Primary resistance
2) Secondary coil resistance
CAUTION:
If the resistance is extremely low, this indicates the
presence of a short-circuit.
Specified resistance:
[Primary side]
Between

1and
2
Between
3and
4
0.69Ω±10%
[Secondary side]
Between terminal No. 1 and No. 2
Between terminal No. 2 and No. 3
21.0 kΩ±15%
3) Insulation between primary terminal and case: 10 MΩ
or more.
G6M0094
5. Spark Plug Cord
A: INSPECTION
Check for:
1) Damage to cords, deformation, burning or rust forma-
tion of terminals
2) Resistance values of cords
Resistance value:
5.12—12.34 kΩ
G6M0095
6. Ignitor
A: REMOVAL AND INSTALLATION
1) Disconnect battery ground cable.
B6M0161
2) Disconnect connector from ignitor.
3) Remove screws which hold ignitor onto body.
4) Installation is in the reverse order of removal.
35
6-1SERVICE PROCEDURE
4. Ignition Coil - 6. Ignitor

G6M0093
B: INSPECTION
Using accurate tester, inspect the following items, and
replace if defective.
1) Primary resistance
2) Secondary coil resistance
CAUTION:
If the resistance is extremely low, this indicates the
presence of a short-circuit.
Specified resistance:
[Primary side]
Between

1and
2
Between
3and
4
0.69Ω±10%
[Secondary side]
Between terminal No. 1 and No. 2
Between terminal No. 2 and No. 3
21.0 kΩ±15%
3) Insulation between primary terminal and case: 10 MΩ
or more.
G6M0094
5. Spark Plug Cord
A: INSPECTION
Check for:
1) Damage to cords, deformation, burning or rust forma-
tion of terminals
2) Resistance values of cords
Resistance value:
5.12—12.34 kΩ
G6M0095
6. Ignitor
A: REMOVAL AND INSTALLATION
1) Disconnect battery ground cable.
B6M0161
2) Disconnect connector from ignitor.
3) Remove screws which hold ignitor onto body.
4) Installation is in the reverse order of removal.
35
6-1SERVICE PROCEDURE
4. Ignition Coil - 6. Ignitor

1. Starter
Trouble Probable cause
Starter does not start.Magnet switch does not operate.
(no clicks are heard.)Magnet switch poor contact or discontinuity
of pull-in coil circuit
Improper sliding of magnet switch plunger
Magnet switch operates.
(clicks are issued.)Poor contact of magnet switch’s main con-
tact point
Layer short of armature
Contaminants on armature commutator
High armature mica
Improper grounding of yoke field coil
Insufficient carbon brush length
Insufficient brush spring pressure
Starter starts but does not crank engine.Failure of pinion gear to engage ring gearWorn pinion teeth
Improper sliding of overrunning clutch
Improper adjustment of stud bolt
Clutch slippage Faulty clutch roller spring
Starter starts but engine cranks too slowly.Poor contact of magnet switch’s main con-
tact point
Layer short of armature
Discontinuity, burning or wear of armature
commutator
Poor grounding of yoke field coil
Insufficient brush length
Insufficient brush spring pressure
Abnormal brush wear
Starter overruns.Magnet switch coil is a layer short.
36
6-1DIAGNOSTICS
1. Starter

2. Generator
Turn ignition switch ON
(engine OFF).
Check if charge bulb
comes on.
YES
NO
Disconnect generator
body harness
connector.
Turn ignition switch to
“START.”(engine starts.)Check if charge bulb
comes on when terminal
(L) of body harness
connector is grounded.
YES
NO
Replace charge bulb.
Check IC regulator.
Check positive terminal
of diode.
Check if charge bulb is
OFF while engine idles.
NO
YES (Remains ON or blinks.)
Check or replace fan belt.
Check generator.
Check S or BAT terminal for improper
contact.
Measure VB* of battery
while running engine at
1,500 rpm.15.5 V is less than VB.
Replace IC regulator
assembly.
VB is less
than 12.5 V.12.5 V is less than or equal to VB, and
VB is less than or equal to 15.5 V.
Check IC regulator as a
single unit.
Turn light switch ON
while engine idles.Check if charge bulb
comes on.
YES
NO
No problems
Check diode assembly.
*: Terminal voltage







37
6-1DIAGNOSTICS
2. Generator

1. Body Electrical
A: SPECIFICATIONS
BatteryReserve capacity 82 minutes (MT), 100 minutes (AT)
Cold cranking ampere 430 amperes (MT), 490 amperes (AT)
Fuse10 A, 15 A, 20 A
Combination
meterSpeedometer Electric pulse type
Tachometer Electric impulse type
Water temperature gauge Thermistor cross coil type
Fuel gauge Resistance cross coil type
Charge indicator light 12 V—1.4 W
Brake fluid level warning/parking brake indicator light 12 V—1.4 W
AT oil temperature warning light (AWD only) 12 V—1.4 W
A.B.S. warning light 12 V—1.4 W
CHECK ENGINE warning light
(Malfunction indicator lamp)12 V—1.4 W
Oil pressure warning light 12 V—1.4 W
AIRBAG system warning light 12 V—1.4 W
Low fuel warning light 12 V—3W
FWD indicator light 12 V—1.4 W
TCS warning light 12 V—1.4 W
TCS indicator light 12 V—1.4 W
Turn signal indicator light 12 V—1.4 W (2 pieces)
Seat belt warning light 12 V—1.4 W
Door open warning light 12 V—1.4 W
Headlight beam indicator light 12 V—1.4 W
Meter illumination light12 V—3 W (2 pieces)
12 V—3.4 W (4 pieces)
Headlight 12 V—60/55 W (Halogen)
Front clearance light 12 V—5W
Turn signal lightFront 12 V—21 W
Rear 12 V—21 W
Tail/Stop light 12 V—5/21 W
Back-up light 12 V—21 W
High-mount stop light12 V—18 W (SEDAN), 12 V—13 W
(WAGON)
License plate light 12 V—5W
Room light 12 V—8W
Trunk room light (SEDAN) 12 V—5W
Luggage room light (WAGON) 12 V—5W
Spot light 12 V—8 W (2 pieces)
Glove box light 12 V—3.4 W
Ash tray illumination light 12 V—1.7 W
Selector lever illumination light (AT model) 12 V—1.7 W
2
6-2SPECIFICATIONS
1. Body Electrical

Front wiper
motorInput 12 V—54 W or less
Rear wiper motor Input 12 V—42 W or less
Front washer
motorPump type Centrifugal
Input 12 V—36 W or less
Rear washer
motorPump type Centrifugal
Input 12 V—36 W or less
Horn12 V—350 Hz
Cigarette lighter Input 12 V—120 W
Rear window
defoggerInput 12 V—160 W
Indicator light 12 V—50 mA
3
6-2SPECIFICATIONS
1. Body Electrical

1. Precaution

Before disassembling or reassembling parts, always
disconnect battery ground cable. When repairing
radio, control modules, etc. which are provided with
memory functions, record memory contents before
disconnecting battery ground cable. Otherwise, these
contents are cancelled upon disconnection.

Reassemble parts in reverse order of disassembly
procedure unless otherwise indicated.

Adjust parts to specifications contained in this
manual if so designated.

Connect connectors and hoses securely during
reassembly.

After reassembly, ensure functional parts operate
smoothly.
CAUTION:

Airbag system wiring harness is routed near the
electrical parts and switch.

All Airbag system wiring harness and connectors
are colored yellow. Do not use electrical test equip-
ment on these circuit.

Be careful not to damage Airbag system wiring har-
ness when servicing the ignition key cylinder.
G6M0102
2. Battery
A: REMOVAL AND INSTALLATION
1. BATTERY
1) Disconnect the positive (+) terminal after disconnecting
the negative () terminal of battery.
2) Remove flange nuts from battery rods and take off bat-
tery holder.
3) Remove battery.
Tightening torque:
3.4±1.0 N⋅m (0.35±0.1 kg-m, 2.5±0.7 ft-lb)
NOTE:

Clean battery cable terminals and apply grease to retard
the formation of corrosion.

Connect the positive (+) terminal of battery and then the
negative () terminal of the battery.
4
6-2SERVICE PROCEDURE
1. Precaution - 2. Battery

1. Precaution

Before disassembling or reassembling parts, always
disconnect battery ground cable. When repairing
radio, control modules, etc. which are provided with
memory functions, record memory contents before
disconnecting battery ground cable. Otherwise, these
contents are cancelled upon disconnection.

Reassemble parts in reverse order of disassembly
procedure unless otherwise indicated.

Adjust parts to specifications contained in this
manual if so designated.

Connect connectors and hoses securely during
reassembly.

After reassembly, ensure functional parts operate
smoothly.
CAUTION:

Airbag system wiring harness is routed near the
electrical parts and switch.

All Airbag system wiring harness and connectors
are colored yellow. Do not use electrical test equip-
ment on these circuit.

Be careful not to damage Airbag system wiring har-
ness when servicing the ignition key cylinder.
G6M0102
2. Battery
A: REMOVAL AND INSTALLATION
1. BATTERY
1) Disconnect the positive (+) terminal after disconnecting
the negative () terminal of battery.
2) Remove flange nuts from battery rods and take off bat-
tery holder.
3) Remove battery.
Tightening torque:
3.4±1.0 N⋅m (0.35±0.1 kg-m, 2.5±0.7 ft-lb)
NOTE:

Clean battery cable terminals and apply grease to retard
the formation of corrosion.

Connect the positive (+) terminal of battery and then the
negative () terminal of the battery.
4
6-2SERVICE PROCEDURE
1. Precaution - 2. Battery

B: INSPECTION
1. BATTERY
1) External parts
Check for the existence of dirt or cracks on the battery
case, top cover, vent plugs, and terminal posts. If
necessary, clean with water and wipe with a dry cloth.
Apply a thin coat of grease on the terminal posts to prevent
corrosion.
2) Electrolyte level
Check the electrolyte level in each cell. If the level is below
MIN LEVEL, bring the level to MAX LEVEL by pouring dis-
tilled water into the battery cell. Do not fill beyond MAX
LEVEL.
WARNING:

Electrolyte has toxicity; be careful handling the
fluid.

Avoid contact with skin, eyes or clothing. Especially
at contact with eyes, blush with water for 15 minutes
and get prompt medical attention.

Batteries produce explosive gasses. Keep sparks,
flame, cigarettes away.

Ventilate when charging or using in enclosed space.

For safety, in case an explosion does occur, wear
eye protection or shield your eyes when working near
any battery. Never lean over a battery.

Do not let battery fluid contact eyes, skin, fabrics, or
paint-work because battery fluid is corrosive acid.

To lessen the risk of sparks, remove rings, metal
watch-bands, and other metal jewelry. Never allow
metal tools to contact the positive battery terminal and
anything connected to it while you are at the same time
in contact with any other metallic portion of the vehicle
because a short circuit will be caused.
5
6-2SERVICE PROCEDURE
2. Battery

G6M0103
3) Specific gravity of electrolyte
Measure specific gravity of electrolyte using a hydrometer
and a thermometer.
Specific gravity varies with temperature of electrolyte so
that it must be corrected at 20°C (68°F) using the follow-
ing equation:
S
20= St + 0.0007 x (t 20)
S
20:Specific gravity corrected at electrolyte tempera-
ture of 20°C (68°F)
St :Measured specific gravity
t :Measured temperature °C
Determine whether or not battery must be charged,
according to corrected specific gravity.
Standard specific gravity: 1.220 — 1.290 [at 20°C
(68°F)]
Measuring the specific gravity of the electrolyte in the bat-
tery will disclose the state of charge of the battery. The
relation between the specific gravity and the state of
charge is as shown in figure.
C: CHARGING
WARNING:

Do not bring an open flame close to the battery at
this time.
CAUTION:

Prior to charging, corroded terminals should be
cleaned with a brush and common baking soda solu-
tion.

Be careful since battery electrolyte overflows while
charging the battery.

Observe instructions when handling battery
charger.

Before charging the battery on vehicle, disconnect
battery ground terminal. Failure to follow this rule may
damage generator’s diodes or other electrical units.
1. NORMAL CHARGING
Charge the battery at current value specified by manufac-
turer or at approximately 1/10 of battery’s ampere hour
rating.
2. QUICK CHARGING
Quick charging is a method in which the battery is charged
in a short period of time with a relatively large current by
using a quick charger.
Since a large current flow raises electrolyte temperature,
the battery is subject to damage if the large current is used
for prolonged time. For this reason, the quick charging
must be carried out within a current range that will not
increase the electrolyte temperature above 40°C (104°F).
It should be also remembered that the quick charging is a
temporary means to bring battery voltage up to a fair value
and, as a rule, a battery should be charged slowly with a
low current.
6
6-2SERVICE PROCEDURE
2. Battery