1999 SUBARU LEGACY relay

7. Electrical Unit Location
A: LIST
Electrical unit Index No.
ABS control module
ABS G sensor (MT)
A/C compressor relay
A/C fuse
A/C main fan relay 1
A/C main fan relay 2
A/C pressure switch
A/C sub fan relay 2
ATF temperature sensor
Blower motor resistor
Blower relay
Camshaft position sensor
Check connector
Clutch switch (MT)
Crankshaft position sensor
Cruise control module
Cruise control pump
Data link connector (for
OBD-II G.S.T.)
Data link connector (for
S.S.M.)
Diagnosis connector
Diagnosis terminal (Ground)
Door lock timer
Engine control module
Engine coolant temperature
sensor
Engine hood switch (Secu-
rity)
Evaporator thermoswitch
F/B
FRESH/RECIRC actuator
Fuel pump relay
Fuel gauge module
Fuel gauge sub module
(AWD)
FWD switch (AT)
Headlight alarm relay
(Security)
Headlight relay LH
Electrical unit Index No.
Headlight relay RH
Horn relay
Hydraulic unit (ABS)
Ignition coil
Ignitor
Idle air control solenoid
valve
Illumination control module
Inhibitor switch
Knock sensor
Main fan relay
Main relay
Mass air flow sensor
Mode actuator
M/B
Oil pressure switch
Oxygen sensor
Pedal stroke sensor (TCS)
Power window and sunroof
relay
Power window circuit
breaker
Purge control solenoid valve
Rear defogger relay
Seat belt timer
Security control module
Shift lock control module
Starter interrupt relay (Secu-
rity)
Stop & brake switch (With
cruise control)
Sunroof control module
Tail and illumination relay
TCS control module
TCS motor relay
TCS valve relay
Throttle position sensor
Test mode connector
Transmission control mod-
ule
Turn & hazard module
Vehicle speed sensor 1
Vehicle speed sensor 2
133
[D7A0]6-3WIRING DIAGRAM
7. Electrical Unit Location

B: LOCATION
1. ENGINE ROOM
B2M0018F
(1) FWD switch (AT) [D7B4].>
(2) A/C pressure switch [D7B4].>
(3) Oil pressure switch [D7B4].>
(4) M/B (5) Headlight relay LH [D7B4].>
(6) Headlight relay RH [D7B4].>
(7) A/C compressor relay 6-3 [D7B4].>(8) A/C main fan relay 2 6-3 [D7B4].>
(9) A/C sub fan relay 2 [D7B4].>
(10) A/C main fan relay 1 6-3 [D7B4].>
(11) A/C fuse
134
6-3[D7B1]WIRING DIAGRAM
7. Electrical Unit Location

2. INSTRUMENT PANEL
B6M0218D
(12) Mode actuator [D7B4].>
(13) Blower relay [D7B4].>
(14) Horn relay
(15) F/B
(16) Turn & hazard module 6-3 [D7B4].>
(17) Rear defogger relay [D7B4].>
(18) Tail & illumination relay 6-3 [D7B4].>(19) Main fan relay [D7B4].>
(20) Seat belt timer [D7B4].>
(21) Illumination control module to 6-3 [D7B4].>
(22) Shift lock control module to 6-3 [D7B4].>
(23) Power window circuit breaker

(24) Power window & sunroof relay
(25) Check connector [D7B4].>
(26) Blower motor resistor 6-3 [D7B4].>
(27) Door lock timer [D7B4].>
(28) FRESH/RECIRC actuator to 6-3 [D7B4].>
(29) Evaporator thermoswitch to 6-3 [D7B4].>
135
[D7B2]6-3WIRING DIAGRAM
7. Electrical Unit Location

B: FRONT WIRING HARNESS
1. LHD MODEL
Connector Connecting to
No. Pole Color Area No. Name
F120 Blue B-2 P1 Floor wiring harness (With TCS model)
8 * B-2 P1 Floor wiring harness (With ABS model)
F2 20 Blue B-2 B100 Bulkhead wiring harness (With ABS model)
F3 3 Brown B-1 Front turn signal and side marker light RH
F5 1 Black B-1 Horn
F62 * C-1 Front fog light RH
2 Brown C-1 Front fog light RH (Outback with step roof)
F7 3 Black B-1 Headlight RH
F10 4 * B-2 TCS motor relay
F11 6 * B-2 TCS valve relay
F12 2 Black B-2 TCS pressure switch
F13 2 Black B-2 TCS motor
F14 2 Gray B-2
Hydraulic unit (TCS)
F15 12 Gray B-2
F16 3 Black C-1 Sub fan motor
F17 3 Black C-2 Radiator main fan motor
F18 2 Gray C-3 Front hood switch (Security)
F19 3 Brown C-3 Front turn signal and side marker light LH
F212 * C-2 Front fog light LH
2 Brown C-2 Front fog light LH (Outback with step roof)
F23 3 Black C-2 Headlight LH
F24 3 Gray B-2 A/C compressor
F25 1´2 * B-2
Generator
F26 2 Gray B-2
F27 4 Black B-3 A/C fuse (Relay holder)
F28 4 Black B-3 A/C main fan relay-1 (Relay holder)
F29 4 Black B-3 A/C sub fan relay-2 (Relay holder)
F30 4 Black B-3 A/C main fan relay-2 (Relay holder)
F31 4 Black B-3 A/C relay (Relay holder)
F32 2 Green B-2 Front washer motor
F33 2 * B-3 Rear washer motor
F34 4 Black B-3 SBF holder
F35 8 Black B-3
M/B F36 3 * B-3
F37 2 Black B-3
F38 2 Black B-3
F39 1 Brown B-3
F40 10 Gray B-4
F/B F41 3 Gray B-4
F42 5 Gray B-4
F43 3 Orange B-4 A/C diode
F44 8 * B-3 B61
Bulkhead wiring harness
F45 20 * B-3 B62
F46 2 Black B-4 B108 Bulkhead wiring harness (Outback)
F47 1 Black C-3 Horn (TAIWAN model)
F48 6 * B-3 Shield joint connector (ABS)
F49 31 Black B-1 ABS control module and hydraulic control module
F73 1 * B-1 ABS pump motor ground
*: Non-colored
142
6-3[D8B1]WIRING DIAGRAM
8. Electrical Wiring Harness and Ground Point

2. RHD MODEL
Connector Connecting to
No. Pole Color Area No. Name
F3 3 Brown B-1 Front turn signal and side marker light RH
F5 1 Black B-1 Horn
F7 3 Black B-1 Headlight RH
F16 3 Black C-1 Sub fan motor
F17 3 Black C-2 Radiator main fan motor
F19 3 Brown C-3 Front turn signal and side marker light LH
F20 1 Black C-2 Horn
F23 3 Black C-2 Headlight LH
F24 1 Black B-2 A/C compressor
F25 1´2 * B-2
Generator
F26 2 Gray B-2
F27 4 Black B-3 A/C fuse (Relay holder)
F28 4 Black B-3 A/C main fan relay-1 (Relay holder)
F29 4 Black B-3 A/C sub fan relay-2 (Relay holder)
F30 4 Black B-3 A/C main fan relay-2 (Relay holder)
F31 4 Black B-3 A/C relay (Relay holder)
F35 8 Black B-3
M/B
F38 2 Black B-3
F40 10 Gray B-2
F/B
F42 5 Gray B-2
F43 3 Orange B-2 A/C diode
F44 8 * B-2 B61
Bulkhead wiring harness
F45 20 * B-2 B62
F47 2 Gray C-2 A/C pressure switch
F48 2 Blue B-2 Thermal protector
*: Non-colored
144
6-3[D8B2]WIRING DIAGRAM
8. Electrical Wiring Harness and Ground Point

D: BULKHEAD WIRING HARNESS (IN COMPARTMENT)
1. LHD MODEL
Connector Connecting to
No. Pole Color Area No. Name
B30 24 * C-1 D1 Front door cord LH
B31 7 Yellow C-1 AB1 SRS (Airbag) harness
B32 3 Black C-1 Turn & hazard module
B33 4 Brown B-1 Diode (Brake fluid level)
B352 Black B-1Diode (Without step
light)
4 Brown B-1 Diode (With step light)
B36 22 Black C-1 i1
Instrument panel wiring
harness B37 22 * C-1 i2
B38 22 Brown C-1 i3
B39 20 Blue C-1 i4
B40 16 Gray C-2 Data link connector
B41 2 * C-2Power window circuit
breaker
B42 4 * C-2Power window and sun-
roof relay
B43 6 Black C-2Illumination control mod-
ule
B44 8 * C-2 Seat belt timer
B45 4 * B-1 R53 Sunroof cord
B46 4 Green B-1 Fuel pump relay
B47 6 Brown B-1 Main relay
B48 4 Blue B-1 Front fog light relay
B49 3 Black B-1 Horn relay
B50 4 * B-1 Blower relay
B51 11 Gray B-1
F/B
B52 12 Gray B-1
B53 6 Gray B-2Shield joint connector
(AT)
B54 24 * B-2
Transmission control
module
B55 24 Gray B-2
B57 12 Black B-2 Shift-lock control module
B59 3 * B-1 Interrupt relay (Security)
B60 4 * B-2Shield joint connector
(With TCS model)
B61 8 * B-2 F44
Front wiring harness
B62 20 * B-1 F45
B63 40 Gray B-1 P10Floor harness (With TCS
model)
B64 2 Black B-2 Stop light switch
B65 4 Black B-2Stop & brake switch
(With cruise control)
B66 3 Black B-2Pedal stroke sensor
(TCS)
B67 4 Black B-2Pedal stroke switch
(TCS)
B68 5 Black B-3 Slip ring
B69 11 Black B-3
Combination switch B70 9 * B-3
B71 8 * B-3
B72 6 Black B-3 Ignition switch
B73 2 Black B-3 Key lock solenoid (AT)
B74 2 Black B-3 Key warning switch
B75 2 Green C-2 B76
Test mode connector
B76 2 Green C-3 B75
B77 10 Brown B-2 Mode actuator
B79 14 Gray C-2 Check connector
B80 4 Blue B-2 i20Instrument panel wiring
harness
Connector Connecting to
No. Pole Color Area No. Name
B81 1´2 * C-2Diagnosis terminal
(Ground)
B82 6 Black C-2 Diagnosis connector
B834 * C-3Shield joint connector
(2500 cc engine model)
6 * D-4Shield joint connector
(2200 cc engine model)
B84 96Light
blueB-3Engine control module
(2500 cc engine model)
B86 4 * B-3 Blower motor resistor
B87 2 * B-3 Blower motor
B88 3 Black B-3 Evaporator thermoswitch
B89 2 Black B-3 Diode (Security)
B90 4 * B-4 R50 Room light cord
B91 4 * B-4FRESH/RECIRC actua-
tor
B92 8 * B-4 Door lock timer
B93 18 * C-2 Security control module
B94 20 Black B-4 Cruise control module
B95 2 Black B-4Diode (Daytime running
light)
B96 10 * B-4Daytime running light
control module
B97 8 * B-4 R1 Rear wiring harness
B98 24 Black B-4 R2 Rear wiring harness
B99 24 * B-4 R3 Rear wiring harness
B100 20 Blue B-4 F2Front wiring harness
(With ABS model)
B101 24 * B-4 D11 Front door cord RH
B102 5 Black B-4Daytime running light
relay
B103 4 Blue B-4High-beam relay (Day-
time running light)
B104 4 Pink B-4 Rear power supply relay
B105 5 Green B-1Starter interlock relay
(MT)
B106 2 * B-1 Clutch switch (MT)
B107 2 Blue B-1Clutch switch (Cruise
control)
B108 2 Black B-2 F46Front wiring harness
(Outback)
B109 4 Black C-1 Fuse holder (Outback)
B112 2 Black B-1 Diode (Front fog light)
B113 2 * C-1 D50 Front door cord LH
B134 35 * D-4
Engine control module
(2200 cc engine model) B135 28 * D-4
B136 30 * C-4
B176 16 * B-2Keyless entry control
module
B178 3 * B-4 R85Rear wiring harness
(Wiper deicer)
B183 1 * C-1 B184
Program connector
(Security)
B184 1 * C-1 B183
B205 2 * B-2Keyless entry short con-
nector
*: Non-colored
Connector Connecting to
No. Pole Color Area No. Name
S1 3 White D-3 Cruise control sub switch
150
6-3[D8D1]WIRING DIAGRAM
8. Electrical Wiring Harness and Ground Point

2. RHD MODEL
Connector Connecting to
No. Pole Color Area No. Name
B30 24 * C-4 D1 Front door cord RH
B31 7Yel-
lowC-4 AB1SRS (Airbag) har-
ness
B32 3 Black C-4Turn & hazard mod-
ule
B36 22 Black C-3 i1
Instrument panel
wiring harness B37 22 * C-3 i2
B38 22 Brown C-3 i3
B39 20 Blue C-3 i4
B40 16 Gray C-3 Data link connector
B41 2 * C-3Power window circuit
breaker
B42 4 * C-3 Power window relay
B43 6 Black C-3Illumination control
module
B44 8 * C-3 Seat belt timer
B46 4 Green B-4 Fuel pump relay
B47 6 Brown B-4 Main relay
B49 3 Black B-4 Horn relay
B50 4 * B-4 Blower relay
B51 11 Gray C-4
F/B
B52 12 Gray C-4
B53 6 Gray B-3Shield joint connec-
tor (AT)
B54 24 * B-3
Transmission control
module
B55 24 Gray B-3
B57 12 Black B-3Shift-lock control
module
B61 8 * B-4 F44
Front wiring harness
B62 20 * B-4 F45
B64 2 Black B-3 Stop light switch
B65 4 Black B-3Stop & brake switch
(With cruise control)
B68 5 Black B-3Cruise control sub
switch
B69 11 Black C-3
Combination switch B70 9 * C-3
B71 8 * B-3
B72 6 Black C-3 Ignition switch
B73 2 Black B-3 Key lock solenoid
B74 2 Black B-3 Key warning switch
B75 2 Green B-2 B76
Test mode connector
B76 2 Green B-2 B75
B77 7 * B-2 Mode actuator
B78 9Yel-
lowB-2 Data link connector
B79 14 Gray C-2 Check connector
B80 4 Blue B-2 i20Instrument panel
wiring harnessConnector Connecting to
No. Pole Color Area No. Name
B81 1´2 * B-2Diagnosis terminal
(Ground)
B82 6 Black B-2 Diagnosis connector
B83 6 * C-1Shield joint connec-
tor (E/G)
B85 4 Brown B-3 Diode (Lighting)
B86 4 Black B-1Blower motor resis-
tor
B87 2 Black B-1 Blower motor
B88 3 Black B-1Evaporator ther-
moswitch
B90 2 Green B-4 R50 Room light cord
B91 5 * B-1FRESH/RECIRC
actuator
B92 8 * B-1 Door lock timer
B94 20 Black B-1Cruise control mod-
ule
B97 56 * B-4 R1Rear wiring harness
(S.M.J.)
B101 24 * B-1 D11 Front door cord LH
B111 3 Gray C-4 F/B
B113 2 * C-4 D50 Front door cord RH
B114 2 Black C-3Diode (Door warn-
ing)
B134 35 * C-2
Engine control mod-
ule B135 28 * C-2
B136 30 * C-2
*: Non-colored
152
6-3[D8D2]WIRING DIAGRAM
8. Electrical Wiring Harness and Ground Point

G: REAR WIRING HARNESS
1. LHD MODEL
Connector Connecting to
No. Pole Color Area No. Name
R1 8 * B-2 B97 Bulkhead wiring harness
R224 Black B-2 B98Bulkhead wiring harness
(2200 cc engine AWD except Taiwan model)
20 * B-2 B98 Bulkhead wiring harness (Other models)
R3 24 * B-2 B99 Bulkhead wiring harness
R4 1 Black B-2 Parking brake switch
R5 2 * C-2 Select lever illumination light (AT)
R6 2 Black C-2 Shift lock solenoid (AT)
R7 2 * C-2 P position switch (AT)
R8 2 * C-3 Seat belt switch
R9 1 Brown C-4 Front door switch LH
R10 2 * C-4 D22 Rear door cord LH (Security)
R11 8 * C-4 D21 Rear door cord LH
R12 1 Brown B-2 Front door switch RH
R13 2 * B-2 D28 Rear door cord RH (Security)
R14 8 * B-2 D27 Rear door cord RH
R158 * B-3 R57 Fuel tank cord (Except Taiwan model)
6 Black B-3 R57 Fuel tank cord (Taiwan model)
R16 1 Brown B-3 Rear door switch RH
R29 3 * C-2 Diode (Security)
R30 2 Black C-2 Diode (Rear gate latch switch) (Wagon)
R31 3 * C-2 Diode (Security)
R41 4 Blue B-2 Seat heater (Passenger)
R42 6 * B-3 Seat heater switch (Passenger)
R43 6 Blue B-3 Seat heater switch (Driver)
R44 4 Blue C-3 Seat heater (Driver)
R46 2 * B-3 R67 Fuel tank cord (Except Taiwan model)
R47 3 * B-4 Fuel tank pressure sensor (2200 cc engine AWD model)
R50 4 * B-2 B90 Bulkhead wiring harness
R51 2 * B-2 Vanity mirror illumination light RH
R52 2 * A-3 Room light
R53 4 * C-3 B45 Bulkhead wiring harness
R54 2 * B-3 Vanity mirror illumination light LH
R55 1 * B-3 Sunroof control module (Except OUTBACK)
R56 2 * B-3 Spot light
R578 * B-3 R15 Rear wiring harness (Except Taiwan model)
6 Black B-3 R15 Rear wiring harness (Taiwan model)
R58 6 * B-3 Fuel gauge module & fuel pump
R59 2 * B-4 Fuel gauge sub module (AWD)
R67 2 * B-3 R46 Rear wiring harness (Except Taiwan model)
R68 2 * B-3 Pressure control solenoid valve
R69 2 * B-3 Vent control solenoid valve
R83 4 * B-3 R84 Fuel tank cord (2200 cc engine AWD model)
R84 4 * B-3 R83 Rear wiring harness (2200 cc engine AWD model)
R85 3 * B-2 B178 Bulkhead wiring harness (Wiper deicer)
R86 8 * B-3 Wiper deicer switch
R87 4 Blue C-3 Wiper deicer relay
R88 4 * C-3 Wiper deicer timer
R89 6 Black A-3 Sunroof control module (OUTBACK)
R90 6 Brown A-3 Sunroof switch (OUTBACK)
*: Non-colored
162
6-3[D8G1]WIRING DIAGRAM
8. Electrical Wiring Harness and Ground Point