sensor SUBARU LEGACY 1996 Service Repair Manual

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

Connector Connecting to
No. Pole Color Area No. Name
B1 2 * B-2 Pressure source switching solenoid
B2 3 Black B-2 Pressure sensor
B3 5 Gray B-2 Mass air flow sensor
B4 2 Gray B-2 AT dropping resistor
B5 2 Gray B-2 Resistor (Daytime running light)
B62 Gray B-2 ABS front sensor RH
2 Brown B-2 ABS front sensor RH (Outback with step roof)
B7 4 * B-2 Cruise control pump
B8 6 * A-2 Front wiper motor
B9 2 Black A-2 FWD switch (AT)
B10 2 Brown B-2 A/C pressure switch
B11 16 Gray B-3 T4
Transmission (AT)
B12 12 Gray B-2 T3
B13 6 Gray B-3 Ignitor
B14 1 Black B-3 Starter (Magnet)
B152 Gray B-3 ABS front sensor LH
2 Brown B-3 ABS front sensor LH (Outback with step roof)
B16 2 Gray B-3 Brake fluid level switch
B17 2 Black B-2 Vehicle speed sensor
B18 3 Dark gray B-2 Front oxygen sensor
B194 * B-2 T5 Rear oxygen sensor cord (Other models)
4 * B-2 Rear oxygen sensor (California model)
B20 6 Light gray B-2 E1
Engine wiring harness B21 12 Light gray B-2 E2
B22 16 Light gray B-2 E3
B24 2 Gray B-2 T1 Back-up light switch (MT)
B25 2 Brown B-2 T2 Neutral position switch (MT)
*: Non-colored
11 9
6-3WIRING DIAGRAM
8. Electrical Wiring Harness and Ground Point

Connector Connecting to
No. Pole Color Area No. Name
B1 2 Brown B-2 Pressure sources switching solenoid
B2 3 Black B-2 Pressure sensor
B3 5 Gray B-2 Mass air flow sensor
B4 2 Gray B-2 AT dropping resistor
B7 4 Gray B-3 Cruise control pump
B8 6 * B-3 Front wiper motor
B9 2 Black A-2 FWD switch
B11 16 Gray B-3 T4
Transmission
B12 12 Gray B-2 T3
B13 6 Gray B-3 Ignitor
B14 1 Black B-3 Starter (Magnet)
B16 2 Gray B-2 Brake fluid level switch
B17 2 Black B-3 Vehicle speed sensor
B18 3 Dark gray B-2 Front oxygen sensor
B194 * B-2 T5 Rear oxygen sensor cord (Other models)
4 * B-2 Rear oxygen sensor (California model)
B20 6 Light gray B-2 E1
Engine wiring harness B21 12 Light gray B-2 E2
B22 16 Light gray B-2 E3
B26 2 Black B-3
M/B B27 3 * B-3
B28 1 Brown B-3
B29 2 * B-2 Rear washer motor
B110 2 Green B-3 Front washer motor
*: Non-colored
121
6-3WIRING DIAGRAM
8. Electrical Wiring Harness and Ground Point

Connector Connecting to
No. Pole Color Area No. Name
E1 6 * A-3 B20
Bulkhead wiring harness E2 12 Gray A-3 B21
E3 16 Gray A-3 B22
E4 2 Blue A-2 Purge control solenoid valve
E5 2 Light gray A-2 Injector #1
E6 2 Dark gray A-3 Injector #3
E7 3 Gray A-3 Idle air control solenoid valve
E8 2 Brown B-3 Engine coolant temperature sensor
E9 1 * B-3 Thermometer
E10 2 Gray B-3 Crankshaft position sensor
E11 1 * B-3 Oil pressure switch
E12 3 Gray A-3 Ignition coil
E13 3 Brown A-3 Throttle position sensor
E14 1 Gray B-3 Knock sensor
E15 2 Dark gray B-4 Camshaft position sensor
E16 2 Light gray B-4 Injector #2
E17 2 Dark gray B-4 Injector #4
E18 2 Brown B-3 EGR solenoid (AT)
*: Non-colored
Connector Connecting to
No. Pole Color Area No. Name
T1 2 Gray C-1 B24
Bulkhead wiring harness (MT)
T2 2 Brown C-1 B25
T3 12 Gray D-3 B12
Bulkhead wiring harness (AT)
T4 16 Gray D-3 B11
T5 4 Gray C-1/C-3 B19 Bulkhead wiring harness
T6 4 Gray D-2/D-4 Rear oxygen sensor
123
6-3WIRING DIAGRAM
8. Electrical Wiring Harness and Ground Point

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)
B34 3 * B-1 Diode (Door warning)
B35 2 Black B-1 Diode (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 OBD-II service connector
B41 2 * C-2 Power window circuit breaker
B42 4 * C-2Power window and sunroof
relay
B43 6 Black C-2 Illumination control module
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 4 * B-2 Shield joint connector (AT)
B54 12 Black B-2
Transmission control module B55 16 Black B-2
B56 20 Black B-2
B57 12 Black B-2 Shift-lock control module
B58 5 Black B-1Headlight alarm relay
(Security)
B59 5 Black 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-2 Pedal stroke sensor (TCS)
B67 4 Black B-2 Pedal 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 switchConnector Connecting to
No. Pole Color Area No. Name
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
B78 9 Yellow C-2 Data link connector
B79 14 Gray C-2 Check connector
B80 4 Blue B-2 i20Instrument panel wiring
harness
B81 1 x 2 * C-2 Diagnosis terminal (Ground)
B82 6 Black C-2 Diagnosis connector
B83 4 * C-3 Shield joint connector (E/G)
B84 96Light
blueB-3 Engine control module
B85 2 Black B-3 Diode (Lighting)
B86 4 * B-3 Blower motor resistor
B87 2 * B-3 Blower motor
B88 3 Black B-3 Evaporator thermoswitch
B89 4 Brown B-3 Diode (Security)
B90 4 * B-4 R50 Room light cord
B91 4 * B-4 FRESH/RECIRC actuator
B92 8 * B-4 Door lock timer
B93 16 Black B-4 Security control module
B94 20 Black B-4 Cruise control module
B95 2 Black B-4 Diode (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
B99 24 * B-4 R3
B100 20 Blue B-4 F2Front wiring harness (With
ABS model)
B101 24 * B-4 D11 Front door cord RH
B102 5 Black B-4 Daytime running light relay
B103 4 Blue B-4High-beam relay (Daytime
running light)
B104 4 Pink B-4 Rear power supply relay
B105 4 Blue B-1 Starter interlock relay (MT)
B106 2 * B-1 Clutch switch (MT)
B107 2 Blue B-1 Clutch 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)
*: Non-colored
Connector Connecting to
No. Pole Color Area No. Name
S1 3 White D-3 Cruise control sub switch
125
6-3WIRING DIAGRAM
8. Electrical Wiring Harness and Ground Point

Connector Connecting to
No. Pole Color Area No. Name
P120 Blue B-1 F1 Front wiring harness (With TCS model)
12 * B-1 F1 Front wiring harness (With ABS model)
P2 2 Black C-2 Diode (TCS)
P4 6 * B-3
ABS/TCS control module P5 8 * B-3
P6 16 * B-3
P7 20 * B-3
P82 Gray B-3 Rear ABS sensor RH
2 * B-3 Rear ABS sensor RH (Outback with step roof)
P92 Gray B-4 Rear ABS sensor LH
2 * B-4 Rear ABS sensor LH (Outback with step roof)
P10 40 Gray B-2 B63 Bulkhead wiring harness (With TCS model)
P11 3 * B-2 ABS G sensor
137
6-3WIRING DIAGRAM
8. Electrical Wiring Harness and Ground Point

Connector Connecting to
No. Pole Color Area No. Name
R17 1 Black A-3 Rear defogger (Power)
R18 2 Black B-3 Rear speaker RH
R19 2 * B-3 High-mounted stop light
R20 2 Blue B-2 Trunk room light
R21 2 Black B-2 Rear speaker LH
R22 1 Brown B-1 Rear door switch LH
R23 3 * B-2 Power antenna
R246 * B-3 R60 Trunk lid cord (Without security system)
8 * B-3 R60 Trunk lid cord (With security system)
R25 2 Black B-4 Rear defogger condenser
R26 4 * B-4 Rear combination light RH
R27 2 * B-4 Trunk room light switch
R28 4 * B-3 Rear combination light LH
R47 3 * B-3 Fuel tank pressure sensor
R606 * B-4 R24 Rear wiring harness (Without security system)
8 * B-4 R24 Rear wiring harness (With security system)
R61 3 * B-4 Key switch (Security)
R62 4 * B-4 Rear finisher light RH
R63 2 * B-3 License plate light
R64 4 * B-3 Rear finisher light LH
R65 1 Black A-2 Rear defogger (Ground)
R66 2 Black B-4 High-mounted stop light (Rear spoiler)
*: Non-colored
142
6-3WIRING DIAGRAM
8. Electrical Wiring Harness and Ground Point

Connector Connecting to
No. Pole Color Area No. Name
R22 1 Brown C-1 Rear door switch LH
R23 6 * C-2 Power antenna
R25 2 Black C-3 Rear defogger condenser
R26 4 Black D-4 Rear combination light RH
R28 4 Black C-2 Rear combination light LH
R32 1 * C-2 Rear accessory power supply (Power)
R33 1 Black C-2 Rear accessory power supply (Ground)
R36 5 Black C-3 Rear wiper relay
R37 2 * C-3 D33
Rear gate cord R38 4 * C-3 D34
R39 8 * C-4 D35
R40 4 Black C-3 D36 Rear gate cord (With security)
R45 6 * C-2 Trailer connector (Outback with step roof)
R47 3 * D-3 Fuel tank pressure sensor
Connector Connecting to
No. Pole Color Area No. Name
D33 2 * C-3 R37
Rear wiring harness D34 4 * C-3 R38
D35 8 * C-4 R39
D36 4 Black C-3 R40 Rear wiring harness (With security)
D37 1 Black B-3
Luggage room light
D38 1 * B-3
D39 2 * B-3 High-mounted stop light
D40 1 Black B-4 Rear defogger (Power)
D41 4 Gray B-4 Key switch (Security)
D42 4 * B-4 Rear finisher light RH
D43 4 * B-3 Rear wiper motor
D44 2 * B-4 License plate light RH
D45 2 * A-3 License plate light LH
D46 2 Black A-4 Rear gate latch switch
D474 * A-4 Rear gate lock actuator (Without security system)
4 Gray A-4 Rear gate lock actuator (With security system)
D48 1 Black B-3 Rear defogger (Ground)
D49 4 * A-3 Rear finisher light LH
*: Non-colored
144
6-3WIRING DIAGRAM
8. Electrical Wiring Harness and Ground Point

Connector Connecting to
No. Pole Color Area No. Name
R22 1 Brown C-1 Rear door switch LH
R23 6 * C-2 Power antenna
R25 2 Black C-3 Rear defogger condenser
R26 4 Black D-4 Rear combination light RH
R28 4 Black C-2 Rear combination light LH
R36 5 Black C-3 Rear wiper relay
R37 2 * C-3 D33
Rear gate cord R38 4 * C-3 D34
R39 8 * C-4 D35
R47 3 * D-3 Fuel tank pressure sensor
Connector Connecting to
No. Pole Color Area No. Name
D33 2 * C-3 R37
Rear wiring harness D34 4 * C-3 R38
D35 8 * C-4 R39
D37 1 Black B-3
Luggage room light
D38 1 * B-3
D39 2 * B-3 High-mounted stop light
D40 1 Black B-4 Rear defogger (Power)
D42 4 * B-4 Rear finisher light RH
D43 4 * B-3 Rear wiper motor
D44 2 * B-4 License plate light RH
D45 2 * A-3 License plate light LH
D46 2 Black A-4 Rear gate latch switch
D47 4 * A-4 Rear gate lock actuator
D48 1 Black B-3 Rear defogger (Ground)
D49 4 * A-3 Rear finisher light LH
*: Non-colored
146
6-3WIRING DIAGRAM
8. Electrical Wiring Harness and Ground Point

Diagnosis and checking procedure using instruments
USING A CIRCUIT TESTER
J3-1012

Voltage check (range set to DC V)
Connect the positive probe to the terminal to be tested, and
the negative probe to body ground (or the ground terminal of
the ECM)
J3-830

Checking the connection (range set toΩ)
Measure the resistance and check for open or shorted wire in
the harness or the connector.
NOTE:
This check must be carried out with both connectors discon-
nected.
(This avoids by-passing the connection through other circuits).
1) Check for open circuit (range:Ωx 1K)
Measure the resistance between the respective pins in both
connectors.
Specified resistance:
1MΩ, or more (No continuity) Open circuit
10Ω, or less (Continuity) O.K.
2) Check for correct insulation value (range:Ωx 1K)
Measure the resistance between the pins in both connectors,
as well as between the suspected pin and the body (body
short).
Specified resistance:
1MΩ, or more (No continuity) O.K.
10Ω, or less (Continuity) Short circuit

Resistance measurement (range set toΩ)
Measuring the internal resistance of sensors, solenoid valves
etc. to check the operating condition of components.
NOTE:

Select the appropriate range for measuring the internal
resistance, or the measurement will result in an incorrect read-
ing.

Before changing the measurement range the gauge must be
reset to zero.
8