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1995 IMPREZA SERVICE MANUAL
WIRING DIAGRAM SECTION
FOREWORD
This portion of the service manual has been prepared
to provide SUBARU service personnel with the neces-
sary information and data for the correct maintenance
and repair of SUBARU vehicles.
This manual includes the procedures for maintenance
disassembling, reassembling, inspection and adjust-
ment of components and diagnostics for guidance of
both the fully qualified and the less-experienced
mechanics.
Please peruse and utilize this manual fully to ensure
complete repair work for satisfying our customers by
keeping their vehicle in optimum condition. When
replacement of parts during repair work is needed, be
sure to use SUBARU genuine parts.
All information, illustration and specifications con-
tained in this manual are based on the latest product
information available at the time of publication
approval.
FUJI HEAVY INDUSTRIES LTD.
QUICK REFERENCE INDEX
WIRING DIAGRAM
6-3
G176ABE4

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Summary of Contents for Subaru IMPREZA 1995

  • Page 1 WIRING DIAGRAM FOREWORD This portion of the service manual has been prepared to provide SUBARU service personnel with the neces- sary information and data for the correct maintenance and repair of SUBARU vehicles. This manual includes the procedures for maintenance...
  • Page 2: Important Safety Notice

    Providing appropriate service and repair is a matter of great importance in the serviceman’s safety maintenance and safe operation, function and performance which the SUBARU vehicle possesses. ¼ In case the replacement of parts or replenishment of consumables is required, genuine SUBARU parts whose parts numbers are designated or their equivalents must be utilized. ¼...
  • Page 3: Table Of Contents

    WIRING DIAGRAM Page D WIRING DIAGRAM ..................2 1. General Description ...................2 2. Basic Diagnostics Procedures ..............8 3. Working Precautions ................11 4. How to Use Wiring Diagram ..............14 5. Wiring Diagram ..................16 1. POWER SUPPLY ROUTING ..............16 2. GROUND DISTRIBUTION ..............19 3.
  • Page 4: D Wiring Diagram

    WIRING DIAGRAM 1. General Description 1. General Description 1. HOW TO USE THIS MANUAL The description of the electrical system is divided into the charging system, starting system, etc. 1) First, open to the necessary electrical system section and wiring diagram. 2) Next, open the foldout page of the electrical wiring dia- gram.
  • Page 5 WIRING DIAGRAM 1. General Description 2) The number of poles or pins, presence of a lock, and pin number of each terminal are indicated in the sketch of each connector. In the sketch, the highest pole number refers to the num- ber of poles which the connector has.
  • Page 6 WIRING DIAGRAM 1. General Description 4) The sketch of each connector in the wiring diagram usually shows the “A” side of the connector. The relation- ship between the wire color, terminal number and connec- tor is described in figure. NOTE: A wire which runs in one direction from a connector termi- nal sometimes may have a different color from that which runs in the other direction from that terminal.
  • Page 7 WIRING DIAGRAM 1. General Description 8) The table below lists the nominal sectional areas and allowable currents of the wires. Outside Nominal Allowable No. of strands/ diameter of sectional area current strand diameter finished wiring Amps/40°C 7/0.26 7/0.32 2.2 (or 2.0) 0.75 30/0.18 2.6 (or 2.4)
  • Page 8 WIRING DIAGRAM 1. General Description 10) Relays are classified as normally-open or normally- closed. The normally-closed relay has one or more contacts. The wiring diagram shows the relay mode when the ener- gizing circuit is OFF. G6M0204 Key to symbols: k →...
  • Page 9 WIRING DIAGRAM 1. General Description 11) Each connector number shown in the wiring diagram corresponds to that in the wiring harness. The location of each connector in the actual vehicle is determined by read- ing the first character of the connector (for example, a “F” for F8, “i”...
  • Page 10: Basic Diagnostics Procedures

    WIRING DIAGRAM 2. Basic Diagnostics Procedure 2. Basic Diagnostics Procedure The most important purpose of diagnostics is to determine which part is malfunctioning quickly, to save time and labor. A: IDENTIFICATION OF TROUBLE SYMPTOM Determine what the problem is based on the symptom. B: PROBABLE CAUSE OF TROUBLE Look at the wiring diagram and check the system’s circuit.
  • Page 11 WIRING DIAGRAM 2. Basic Diagnostics Procedure 2. CIRCUIT CONTINUITY CHECKS 1) Disconnect the battery terminal or connector so there is no voltage between the check points. Contact the two leads of an ohmmeter to each of the check points. If the circuit has diodes, reverse the two leads and check again.
  • Page 12 WIRING DIAGRAM 2. Basic Diagnostics Procedure 3. HOW TO DETERMINE AN OPEN CIRCUIT 1) Voltmeter Method An open circuit is determined by measuring the voltage between respective connectors and ground using a voltmeter, starting with the connector closest to the power supply.
  • Page 13: Working Precautions

    WIRING DIAGRAM 3. Working Precautions 3. Working Precautions 1. PRECAUTIONS WHEN WORKING WITH THE PARTS MOUNTED ON THE VEHICLE 1) When working under a vehicle which is jacked-up, always be sure to use safety stands. 2) The parking brake must always be applied during work- ing.
  • Page 14 WIRING DIAGRAM 3. Working Precautions 5) Some connectors are provided with a lock. One type of such a connector is disconnected by pushing the lock, and the other, by moving the lock up. In either type the lock shape must be identified before attempting to disconnect the connector.
  • Page 15 WIRING DIAGRAM 3. Working Precautions ABBREVIATION LIST Abbr. Full name Abbr. Full name A.B.S. Antilock Brake System Left Hand Accessory Air Conditioning Motor Auto Down Main Fuse Box Automatic Transmission Magnet Auto Up Middle Battery MPFI Multi Point Fuel Injection Model Down Optional Parts Daytime Running Light...
  • Page 16: How To Use Wiring Diagram

    WIRING DIAGRAM 4. How to Use Wiring Diagram 4. How to Use Wiring Diagram G6M0215 A: RELAY D: FUSE NO. & RATING A symbol used to indicate a relay. The “FUSE No. & RATING” corresponds with that used in the fuse box (main fuse box, fuse B: CONNECTOR-1 and joint box.) The sketch of the connector indicates the one-...
  • Page 17 WIRING DIAGRAM 4. How to Use Wiring Diagram F: CONNECTOR SKETCH J: SYMBOLS OF WIRE CONNECTION AND CROSSING 1. Each connector sketch clearly identifies the shape and color of a connector as well as Symbol Refers to wires which are terminal locations.
  • Page 18: Wiring Diagram

    WIRING DIAGRAM 5. Wiring Diagram 5. Wiring Diagram 1. POWER SUPPLY ROUTING GU01-02A...
  • Page 19 WIRING DIAGRAM 5. Wiring Diagram GU01-02B...
  • Page 20 WIRING DIAGRAM 5. Wiring Diagram LOAD: SYSTEM No. LOAD: SYSTEM No. MB-1 P/W CIRCUIT BREAKER: 21, 31 FB-14 MAIN FAN RELAY 2: 22 MAIN RELAY: 13 AT CONTROL MODULE: 5 MB-2 FB-15 FUEL PUMP RELAY: 13 ENGINE CONTROL MODULE: 13 MB-3 A/C FUSE: 3, 22 FB-16...
  • Page 21: Ground Distribution

    WIRING DIAGRAM 5. Wiring Diagram 2. GROUND DISTRIBUTION GU04-02A...
  • Page 22 WIRING DIAGRAM 5. Wiring Diagram GU04-02B...
  • Page 23 WIRING DIAGRAM 5. Wiring Diagram GU04-02C...
  • Page 24 WIRING DIAGRAM 5. Wiring Diagram GU04-02D...
  • Page 25: Air Conditioning System

    WIRING DIAGRAM 5. Wiring Diagram 3. AIR CONDITIONING SYSTEM ¼ With A/C GU45-02A...
  • Page 26 WIRING DIAGRAM 5. Wiring Diagram GU45-02B...
  • Page 27 WIRING DIAGRAM 5. Wiring Diagram 3. AIR CONDITIONING SYSTEM ¼ Without A/C GU78-01A...
  • Page 28 WIRING DIAGRAM 5. Wiring Diagram GU78-01B...
  • Page 29: Anti-Lock Brake System

    WIRING DIAGRAM 5. Wiring Diagram 4. ANTI-LOCK BRAKE SYSTEM GU82-02A...
  • Page 30 WIRING DIAGRAM 5. Wiring Diagram GU82-02B...
  • Page 31: A/T Control System

    WIRING DIAGRAM 5. Wiring Diagram 5. A/T CONTROL SYSTEM ¼ 1800 cc engine model GU41-02A...
  • Page 32 WIRING DIAGRAM 5. Wiring Diagram GU41-02B...
  • Page 33 WIRING DIAGRAM 5. Wiring Diagram 5. A/T CONTROL SYSTEM ¼ 2200 cc engine model GU41-03A...
  • Page 34 WIRING DIAGRAM 5. Wiring Diagram GU41-03B...
  • Page 35: A/T Shift Lock System

    WIRING DIAGRAM 5. Wiring Diagram 6. A/T SHIFT LOCK SYSTEM GU42-02...
  • Page 36: Audio System

    WIRING DIAGRAM 5. Wiring Diagram 7. AUDIO SYSTEM GU76-02...
  • Page 37: Back-Up Light System

    WIRING DIAGRAM 5. Wiring Diagram 8. BACK-UP LIGHT SYSTEM GU29-01...
  • Page 38: Charging System

    WIRING DIAGRAM 5. Wiring Diagram 9. CHARGING SYSTEM GU02-02...
  • Page 39: Combination Meter

    WIRING DIAGRAM 5. Wiring Diagram 10. COMBINATION METER GU65-03...
  • Page 40: Cruise Control System

    WIRING DIAGRAM 5. Wiring Diagram 11. CRUISE CONTROL SYSTEM GU71-02...
  • Page 41: Door Lock System

    WIRING DIAGRAM 5. Wiring Diagram 12. DOOR LOCK SYSTEM GU73-02...
  • Page 42: Engine Electrical System

    WIRING DIAGRAM 5. Wiring Diagram 13. ENGINE ELECTRICAL SYSTEM ¼ 1800 cc engine model GU10-04A...
  • Page 43 WIRING DIAGRAM 5. Wiring Diagram GU10-04B...
  • Page 44 WIRING DIAGRAM 5. Wiring Diagram GU10-04C...
  • Page 45 WIRING DIAGRAM 5. Wiring Diagram GU10-04D...
  • Page 46 WIRING DIAGRAM 5. Wiring Diagram 13. ENGINE ELECTRICAL SYSTEM ¼ 2200 cc engine model GU10-05A...
  • Page 47 WIRING DIAGRAM 5. Wiring Diagram GU10-05B...
  • Page 48 WIRING DIAGRAM 5. Wiring Diagram GU10-05C...
  • Page 49 WIRING DIAGRAM 5. Wiring Diagram GU10-05D...
  • Page 50: Front Wiper And Washer System

    WIRING DIAGRAM 5. Wiring Diagram 14. FRONT WIPER AND WASHER SYSTEM GU50-01...
  • Page 51: Fuel Gauge System

    WIRING DIAGRAM 5. Wiring Diagram 15. FUEL GAUGE SYSTEM GU61-02...
  • Page 52: Horn And Cigarette Lighter System

    WIRING DIAGRAM 5. Wiring Diagram 16. HORN AND CIGARETTE LIGHTER SYSTEM GU74-02...
  • Page 53: Lighting (Headlight) System

    WIRING DIAGRAM 5. Wiring Diagram 17. LIGHTING (HEADLIGHT) SYSTEM ¼ U.S.A. model GU20-02...
  • Page 54 WIRING DIAGRAM 5. Wiring Diagram 17. LIGHTING (HEADLIGHT) SYSTEM ¼ Canada model GC20-02A...
  • Page 55 WIRING DIAGRAM 5. Wiring Diagram GC20-02B...
  • Page 56: Lighting (Tail Light⋅Illumination Light⋅Etc.) System

    WIRING DIAGRAM 5. Wiring Diagram 18. LIGHTING (TAIL LIGHT⋅ILLUMINATION LIGHT⋅etc.) SYSTEM GU21-02A...
  • Page 57 WIRING DIAGRAM 5. Wiring Diagram GU21-02B...
  • Page 58: Oil Pressure And Temperature Gauge System

    WIRING DIAGRAM 5. Wiring Diagram 19. OIL PRESSURE AND TEMPERATURE GAUGE SYSTEM GU66-02...
  • Page 59: Parking Brake And Brake Fluid Level Warning System

    WIRING DIAGRAM 5. Wiring Diagram 20. PARKING BRAKE AND BRAKE FLUID LEVEL WARNING SYSTEM GU60-02...
  • Page 60: Power Window System

    WIRING DIAGRAM 5. Wiring Diagram 21. POWER WINDOW SYSTEM GU70-01A...
  • Page 61 WIRING DIAGRAM 5. Wiring Diagram GU70-01B...
  • Page 62: Radiator Fan System

    WIRING DIAGRAM 5. Wiring Diagram 22. RADIATOR FAN SYSTEM ¼ With A/C GU14-03...
  • Page 63 WIRING DIAGRAM 5. Wiring Diagram 22. RADIATOR FAN SYSTEM ¼ Without A/C GU14-04...
  • Page 64: Rear Window Defogger System

    WIRING DIAGRAM 5. Wiring Diagram 23. REAR WINDOW DEFOGGER SYSTEM GU52-02...
  • Page 65: Rear Wiper And Washer System

    WIRING DIAGRAM 5. Wiring Diagram 24. REAR WIPER AND WASHER SYSTEM GU51-02...
  • Page 66: Remote Control Rearview Mirror System

    WIRING DIAGRAM 5. Wiring Diagram 25. REMOTE CONTROL REARVIEW MIRROR SYSTEM GU79-01...
  • Page 67: Seat Belt Warning And Key Warning System

    WIRING DIAGRAM 5. Wiring Diagram 26. SEAT BELT WARNING AND KEY WARNING SYSTEM GU87-02...
  • Page 68: Spot Light, Room Light, Fuse Box Light, Luggage And Trunk Room Light System

    WIRING DIAGRAM 5. Wiring Diagram 27. SPOT LIGHT, ROOM LIGHT, FUSE BOX LIGHT, LUGGAGE AND TRUNK ROOM LIGHT SYSTEM GU24-02...
  • Page 69: Srs (Airbag System)

    WIRING DIAGRAM 5. Wiring Diagram 28. SRS (AIRBAG SYSTEM) GU86-03...
  • Page 70: Starting System

    WIRING DIAGRAM 5. Wiring Diagram 29. STARTING SYSTEM GU03-01...
  • Page 71: Stop Light System

    WIRING DIAGRAM 5. Wiring Diagram 30. STOP LIGHT SYSTEM GU25-02...
  • Page 72: Sunroof System

    WIRING DIAGRAM 5. Wiring Diagram 31. SUNROOF SYSTEM GU75-01...
  • Page 73: Turn Signal And Hazard System

    WIRING DIAGRAM 5. Wiring Diagram 32. TURN SIGNAL AND HAZARD SYSTEM GU26-01...
  • Page 74: Front Fog Light System

    WIRING DIAGRAM 5. Wiring Diagram 33. FRONT FOG LIGHT SYSTEM GU22-01...
  • Page 75: Electrical Wiring Harness And Ground Point

    WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point 6. Electrical Wiring Harness and Ground Point H6M0353A Front wiring harness LH Rear defogger cord (Ground) Front wiring harness RH Fuel tank cord Engine wiring harness Rear door cord LH Engine module wiring harness Rear door adapter cord LH Bulkhead wiring harness Front door cord LH...
  • Page 76 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point Connector Connecting to Pole Color Name Gray Hydraulic unit Gray Front marker light RH Black A/C short connector Black Black Headlight RH Front fun signal light RH Black Sub fan motor Black Radiator main fan motor Front turn signal light LH...
  • Page 77 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point 1. FRONT WIRING HARNESS AND GROUND POINT H6M0354...
  • Page 78 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point Connector Connecting to Pole Color Name Gray AT dropping resistor Gray A/C pressure switch Front wiper motor Blue A/C cut relay FWD switch (AT) Gray A.B.S. front sensor RH Gray Cruise control actuator Gray Transmission (AT) Gray...
  • Page 79 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point 2. BULKHEAD WIRING HARNESS AND GROUND POINT (IN ENGINE ROOM) G6M0218...
  • Page 80 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point Connector Connecting to Pole Color Name Gray Engine module wiring harness Gray Gray Air suction solenoid valve (California) Brown Engine coolant temperature sensor Thermometer Blue Purge control solenoid valve Gray Injector #1 Gray Injector #3 Gray...
  • Page 81 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point 3. ENGINE WIRING HARNESS ⋅ TRANSMISSION CORD AND GROUND POINT (1800 cc engine model) EPA0088...
  • Page 82 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point Connector Connecting to Rear oxygen Gray sensor cord Pole Color Name Pressure Engine Gray source module wiring Brown switching Gray harness solenoid Engine Pressure coolant Black Brown sensor temperature sensor Engine module wiring Thermometer harness...
  • Page 83 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point 4. ENGINE WIRING HARNESS ⋅ TRANSMISSION CORD AND GROUND POINT (2200 cc engine model) EPA0089...
  • Page 84 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point Connector Connecting to Connector Connecting to Pole Color Name Pole Color Name D1 Front door cord LH Combination switch (Lighting switch) Black Combination switch Power window main harness Combination switch Shield joint connector (A.B.S.) Black Key warning switch Gray...
  • Page 85 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point 5. BULKHEAD WIRING HARNESS (IN COMPARTMENT) H6M0357...
  • Page 86 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point Connector Connecting to Pole Color Name Black B46 AT Bulkhead wiring harness Blue Gray Black Front wiring harness LH Seat belt timer Blue Bulkhead wiring harness Hazard switch Brown Cruise control main switch Fan switch Mode control panel Black...
  • Page 87 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point 6. INSTRUMENT PANEL WIRING HARNESS AND GROUND POINT H6M0358...
  • Page 88 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point Connector Connecting to Pole Color Name Blue Bulkhead wiring harness Black Instrument panel wiring harness Black Parking brake switch Seat belt switch Select lever illumination light (AT) Black Shift lock solenoid (AT) Brown Front door switch RH Pink...
  • Page 89 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point 7. REAR WIRING HARNESS AND GROUND POINT H6M0359...
  • Page 90 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point Connector Connecting to Pole Color Name Front wiring harness RH Front door cord RH Rear door adapter cord RH Blue A.B.S. control module Gray Rear A.B.S. sensor RH Front door cord LH Bulkhead wiring harness Black Rear door adapter cord LH...
  • Page 91 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point 8. POWER WINDOW MAIN HARNESS, DOOR CORD AND GROUND POINT G6M0226...
  • Page 92 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point Connector Connecting to Pole Color Name Black Rear defogger (Power) Black Rear speaker RH Black Trunk room light High-mount stop light Black Rear speaker LH Rear combination light RH License plate light RH License plate light LH Trunk room light switch Rear combination light LH...
  • Page 93 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point 9. REAR END WIRING HARNESS AND GROUND POINT OF SEDAN H6M0360...
  • Page 94 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point Connector Connecting to Pole Color Name Rear speaker RH Rear speaker LH Rear combination light RH License plate light RH License plate light LH Rear combination light LH Green Rear washer motor Black Rear wiper relay Luggage room light...
  • Page 95 WIRING DIAGRAM 6. Electrical Wiring Harness and Ground Point 10. REAR END WIRING HARNESS AND GROUND POINT OF WAGON H6M0361...

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