Volkswagen Cabriolet DIY Guide Relay/Fuse Diagrams & Electrical System Notes: 1980-1982 cars use ceramic fuses! 1980-1982 cars had a recall for the fuel pump relay. These cars should have a relay bypass adapter installed in the original fuel pump relay location (position L), which is then connected to the fuel pump relay that has been relocated to the top of the panel. If your car has factory-installed heated seats, the relays for this option are under each front seat (#443919533A). If your car has a factory-installed 2-stage after-run cooling fan system ('88+), the relay for this fan is mounted to the left front fender (#141951253B). If your car has a factory-installed power windows, there is a control unit beneath the dash on the passenger side (#191959875). If your car has a factory-installed power top, there is a covered thermo-fuse above the relay panel. Relays for options/equipment not shown in the diagrams (part numbers follow): o Intake manifold heating ~ carburetor (#171906383) o Intake manifold heating ~ EX, EW, DX engines (#191906383C) o Daytime running lights (#701919505) o Headlight washers (#701955200) o Fog lamps (#141951253B) o Power convertible top (#141951253B) o Power windows ~ Europe (#141951253B) o Temperature sensor (#191906086) ALL 1983-1993 Cabriolets have CE1 electrics. Index: 1980 to 1982 Diagram (CIS)... Page 2 1983 to 1984 Diagram (CIS)... Page 3 1985 to July 1987 Diagram (CIS)... Page 4 July 1987 to 1989 Diagram (to 1993 outside North America ~ CIS)... Page 5 1990 to 1993 Diagram (Digifant)... Page 6 Relay Panel -outs (1980-1982)... Page 7 Relay Panel -outs (1983+)...Page 10 How To Read Current Flow Diagrams...Page 15 Ground Locations...Page 17 Wire Size Conversion Table...Page 18 Page 1 of 18
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Relay Panel -Outs (1980-1982) A Left Harness A2 A3 A4 A5 A6 A7 Circuit Spare wire Alternator Exciter/Charging Circuit Turn Signals A8 Fuel System A9 A10 A11 A14 A15 A16 A17 A18 A19 A20 Side-marker Lights Brake Lights Back-up Lights Brake Lights Back-up Lights Emergency Flashers/Turn Signals C C1 C5 C6 C7 C8 C9 C11 C12 C13 C15 C16 C17 C18 C19 Blue/Brown Blue/Green Blue Blue/Green /White Brown D4 internally A5 D+ on alternator A3 Left front indicator light Control pressure regulator; Auxiliary air regulator; fuel pump; fuel pump relay pin L14 Left running light C10 and E17 internally Brake light switch Reverse light switch Brake light switch Reverse light switch Left headlight pin 56a Left headlight pin 56b Emergency Flasher Switch Terminal L to Turn Signal Switch; C19; E6; D11 /Green Gray/ /Yellow /Yellow / /Green White/ Yellow/ /White Right Harness Circuit Cooling System Side-marker Lights Oil Pressure Warning Ignition System Turn Signals Ignition System Coolant temperature switch Wiper motor pin 31 Wiper motor pin 53 Right running light Right headlight pin 56b Wiper motor pin 53e Right headlight pin 56a Oil pressure switch Wiper motor pin 53a Series resistance for coil Wiper motor pin 53b Washer motor/pump Right front indicator light Ignition coil pin 1 Page 7 of 18 Blue/Yellow Brown Green/ Gray/ Yellow Green White Blue/ /Gray White/Lilac Green/Yellow Green/ /Green
D D1 D2 D3 D4 D5 D7 D8 D9 D10 D11 D12 D14 D15 D16 D17 D18 D19 D20 D21 D22 Dashboard Harness Circuit Parking brake, seat belt warning lights / Load uction Ground Emergency Flashers /Dash Rear Window Defroster HVAC Emergency Flashers Emergency Flashers E E1 E2 E3 E5 E7 E8 E9 E10 E11 E12 E13 E15 E16 E18 E19 E20 E21 E22 Ignition System Emergency flashers Emergency flashers Rear Window Defroster Emergency flashers Emergency Flashers Headlight switch pin 58L Ignition switch pin 15 Emergency flasher switch pin 49a Headlight switch pin 58R E20 Wiper switch pin J Headlight switch pin 58 Emergency flasher switch pin 56b Horn relay pin 87 Harness plug at terminal 8 (fuel gauge) Rear window defroster switch pin + Wiper switch pin 53a Wiper switch pin 53e Wiper switch pin 53 Emergency flasher switch pin L E7; wiper switch pin T Wiper switch pin 53b Emergency flasher switch pin R Gray/ /White/Green Gray/ Green/ Brown/ Gray/Green Yellow Brown Lilac/ /Yellow unknown Green/ Green /White Green/ Green/Yellow /Green Rear Harness Circuit Running Lights Rear Window Defroster Fuel System Running Lights Interior Lights Running Lights Turn Signals Back-up Lights Turn Signals Brake Lights G G1 G2 G3 G4 Blue/ Blue Blue/Brown /White Blue/Yellow /Yellow White Brown White /Gray White/Green White/ Blue/ / /Blue /White Blue/white Dashboard Harness Circuit F F9 F10 F12 F13 F14 F15 F16 F18 F19 F20 Harness plug at terminal 2 (turn indicator light) Harness plug at terminal 10 (charging warning light) Headlight switch pin 30 Three-terminal connector for warning lights and e-brake light switch relay pin 86 Headlight switch pin X Harness plug at terminal 1 (coolant temperature gauge) Headlight dimmer switch pin 30 Headlight dimmer switch pin 56a Emergency flasher switch pin 49 Clock; cigarette lighter Harness plug at terminal 4 (tachometer) Rear window defroster switch pin 86 Headlight switch pin 56 Harness plug at terminal 11 (oil pressure warning light) Blower motor switch pin + Emergency flasher switch pin 15 Emergency flasher switch pin 30 Harness plug at terminal 3 (hi-beam indicator light) Left rear running light Rear window defroster Fuel gauge sender License plate lights Interior courtesy light Right rear running light Right rear indicator light Reverse lights Left rear indicator light Brake lights Gray/ White Lilac/ Gray/Green /Green Gray/ /Green /White / Individual Circuits Circuit Radiator Cooling Fan Seat Belt Warning Lighting H; internally to G6 via fuse 15 Internally to E7; relay M at pin 20 Seat belt relay terminal 15; seat belt warning light Internally to fuse 12 and pin F13 Page 8 of 18
G5 Alternator Excitor Circuit G6 Radiator Cooling Fan G7 Ignition System / Load uction G8 G9 Oil Pressure Warning System G10 - H H H H H Internally Internally Internally 10 Internally Internally Internally to A4, D2, C2 to G1 via fuse 15; radiator fan thermo switch to E13; load reduction relay; D5 & E15 via fuse 11; D19 via fuse to C11 via fuse 4, A18 via fuse 3, D10, D22 to C12, D18 to D17 / - Individual Circuits Battery Power Circuit - /Comes From Battery Fuel injection power supply relay Ignition switch Radiator fan Page 9 of 18
Relay Panel -Outs (1983+) www.cabby-info.com A Dashboard Wiring Harness A01 Dash Lights A02 Wiper Switch A03 A04 A05 A06 A07 A08 A09 Wiper Switch ~ High Speed Signal Wiper Motor Switch Emergency Flashers/Turn Signals Ignition System - A10 Emergency Flashers A11 A12 A13 A14 A15 A16 A17 A18 Wiper Switch ~ Intermittent Signal Emergency Flasher Switch E-brake Warning Light Emergency Flashers A19 Wiper Switch ~ Washer A20 Emergency Flashers/Turn Signals Blue Plug G8; Dash Wiring Harness; Dimmer Switch Terminal 58b (A/T only) Gray/Blue Intermittent Wiper Relay Terminal 53S; Intermittent Wiper Switch Terminal Green 53 Up-shift Relay Terminal L; Up-shift Indicator Light Blue/Yellow Oil Pressure Warning System; G6; D1 Blue/ D9; Intermittent Wiper Switch Terminal 53b Green/Yellow D17; Intermittent Wiper Switch Terminal 53e Green/ Emergency Flasher Switch Terminal R to Turn Signal Switch; C8; D25; E11 /Green Ignition Switch Terminal 15; Airbag Control Unit Terminal 18 (1990+) M1, G7 White/ Emergency Flasher Switch Terminal 49a to Turn Signal Switch; Flasher /White/Green Relay Terminal 49a Emergency Flasher Relay (internal) Intermittent Wiper Relay Terminal J; Intermittent Wiper Switch Terminal J Brown/ Fuse 19; Emergency Flasher Switch Terminal 15 /Blue E7 C12; E-brake Warning Light Switch Blue/Brown Battery Warning Light; G4; C2; D4 Blue Turn Signal Indicator Light; A10 Blue/ Emergency Flasher Switch Terminal 49; Flasher Relay Terminal 49 White Intermittent Wiper Relay Terminal T; Intermittent Wiper Switch Terminal T; Green/ D5; G10; C9 Emergency Flasher Switch Terminal L to Turn Signal Switch; C19; E6; D11 /White Page 10 of 18
Fuse 21; Fuse 22; Headlight Dimmer/Flasher Switch Terminal 56b Canada 1990: M2; Headlight Switch Terminal TFL via DRL Resistor Canada 1991+: M2; DRL Relay via DRL Resistor; Headlight Switch Terminal TFL Fuse 13; Rear Defroster Switch Fuse 14; HVAC Blower Fan; Headlight Switch Light Light Switch Terminal 58; Fuse 7 G5; G2; D7; L1; Console Gauges A/T 1990+: Relay 6 G9; E1 Up-shift Relay Terminal 2 (internal) Hi-beam Indicator Light; C16 A21 A22 Rear Window Defroster Switch Power A23 HVAC System A24 Light Switch A25 ; Gauges A26 Lights A27 Up-shift System A28 B B01 B02 B03 B04 B05 B06 B07 Dashboard Wiring Harness B08 Ignition System B09 Wiper Switch Power B10 B11 B12 B13 B14 B15 B16 B17 B18 B19 B20 B21 B22 B23 B24 B25 B26 B27 B28 Load uction/ignition System Cigarette Lighter, Radio, Amplified Speakers Key-In Power Gauge Cluster (Oil Pressure Light Controller) Fog Light Switch Seat Belt Warning System Up-shift System Fog Light Switch Rear Window Defroster High Beam Switch, high beam output Light Switch Power Light Switch Light Switch Emergency Flasher Switch Power C C01 E13 E10 Fuel Gauge; E5 E4 (no pin) Fuel Pump Relay Terminal 8 (internal) Coolant Temperature Gauge; D29 Ignition Switch Terminal 50; Fuel Pump Relay Terminal 7 (internal); Airbag Control Unit (1990+); C18; D24 D20; Intermittent Wiper Relay Terminal 15; Intermittent Wiper Switch Terminal 53a Load uction Relay Terminal 86; Light Switch Terminal X Fuse 3; E3; B12; Cigarette Lighter; Radio Digital Clock; E3; B11 Headlight Dimmer/Flasher Switch K5 High Oil Pressure Switch Fuse 6, C22 Seat Belt Relay Terminal L; Seat Belt Warning Light Upshift Relay Terminal G (internal); D3 Up-shift Relay Terminal 1; Tachometer; Fuel Pump Relay (internal); D26 Fog Light Relay Output E15; Rear Window Defroster Switch Terminal 86 Fuse 9; Fuse 10; Headlight Dimmer/Flasher Switch Terminal 56a Light Switch Terminal 30 C11 C15; L2 B27; A24; Fuse 8 B26; A24; Light Switch Terminal 58; Fuse 20; Relay 7 (internal) Fuse 4; Emergency Flasher Switch Terminal 30 Engine Compartment/Management, Left Brake Light Switch, Cruise Control, A/T Shiftlock Control Unit C02 Alternator Exciter Circuit/Charging System C03 Brake Lights C04 Running Lights ~ Left C05 ~ Lo-beam C06 ~ Lo-beam C07 Radiator Cooling Fan Blue/White Green/White Violet/ Yellow/ / /Gray /Yellow /Gray /Yellow Yellow White/Yellow White/Violet / Green/Yellow White/Green White Brown/ Gray/Green Gray/Green /White Yellow Plug E16; Brake Light Switch A/T 1990+: Shift Lock Control Unit; E16; Brake Light Switch Cruise Control: E16; Brake Light Switches; Vacuum Valve; Cruise Control Control Unit D+ on Alternator; A16; D4 Fuse 2; Brake Light Switch Cruise Control: C1; Fuse 2; Brake Light Switches E9; Front Parking Light; Side-marker Lights Fuse 21; Left Headlight Fuse 22; Right Headlight Fuse 1; Air Conditioning Relay Terminal 4 (internal); Radiator Fan Thermo Switch Page 11 of 18 /Yellow / Gray/Green Plug Fog Light Switch (Europe Only) Fuel System Coolant Temperature Warning System Yellow / Blue /Yellow Gray/ & Gray Yellow/ Yellow
C08 C09 C10 C11 C12 C13 C14 C15 C16 C17 Emergency Flashers/Turn Signals Windshield Washer Brake Warning System Running Lights ~ Right ~ Hi-beam ~ Hi-beam Turn Signal Light ~ Right Front G10; D5; A19; Windshield Washer Pump (no pin) B24 A15; Brake Fluid Level Switch Fuse 16; Fuse 8; E18; Front Parking Light; Side-marker Lights B25; (ground) Fuse 9; Right Headlight(s) Fuse 10; Left Headlight(s) Hot-start Pulse Relay Terminal 50; E-brake Warning Light; Thermo Time Switch; Fuel Pump Relay (internal); B8; D24 Turn Signal Light ~ Left Front; A20; E6; D11 Fuse 15; D16; Back-up Light Switch; Cooling Fan After-run Control Unit (1990+) Back-up Light Switch; E12 (A/T 1990+); D19 (A/T 1990+) Fuse 6, B16 C18 Warning Lights C19 Emergency Flashers/Turn Signals C20 Back-up Lights C21 Back-up Lights C22 Fog Lights D Engine Compartment/Management, Right D01 Low Oil Pressure Switch D02 Fuel System D03 D04 D05 D06 D07 D08 D09 D10 D11 D12 D13 D14 D15 Up-shift Indicator Alternator Exciter Circuit/Charging System Intermittent Wipers Idle Stabilizer Control Unit; Seat Belt Warning; Oil Temperature Gauge Up-shift Indicator Wiper Motor ~ High Speed Emergency Flashers/Turn Signals Wiper Motor ~ Low Speed Fuel System Resistance Wire, Coil 15 (Europe only) D16 Back-up Lights D17 D18 D19 D20 D21 D22 Wiper Motor Switch Back-up Lights Wiper Motor Switch Oil Pressure Warning System Wiper Motor D23 Ignition System D24 Ignition System D25 Emergency Flashers/Turn Signals D26 Ignition System D27 D28 D29 Coolant Temperature Warning System / /White /Blue White/Yellow White Plug Oil Pressure Switch (1.8 bar); G6; A4 Fuse 17 Digifant I: Fuse 17; R1 Up-shift Switch Terminal 5; B18 Oxygen Sensor Mileage Counter Box; A16; G4; C2 A19; G10; C9 (no pin) Blue/ White/Green Blue - G2; G5; A25; Coolant Low-level Control Unit (A/T 1990+) /Blue Up-shift Vacuum Switch; Up-shift Control Unit Terminal US A5; Wiper Motor Terminal 53b (no pin) E6; C19; A20 Wiper Motor Terminal 53; Intermittent Wiper Relay Terminal 53 Fuel Pump Relay Terminal 6 (internal); Digifant Control Unit Terminal 3 (no pin) D23 C20 1990+ A/T: Fuse 15; Back-up Light/Starter Cut-out Switch; Shift Lock Control Unit; Starter Interlock Relay A6; Wiper Motor Terminal 53e (no pin) E12; C21; Back-up Light Switch/Starter Cut-out Switch (A/T only) Fuse 11; Wiper Motor Terminal 53a Oil Pressure Switch (.3 bar); B15 Main Panel Ground Coil Terminal 15; D15 Digifant I: D25; Ignition Coil Power Stage B8; C18; Fuel Pump Relay Terminal 7; Starter Terminal 50, or Auto. Trans. Starter Interlock Relay Terminal 31 C8; E11; A7 Ignition Coil Terminal 1; Idle Stabilizer Relay Terminal 1; Fuel Pump Relay (internal); B19 (no pin) (no pin) Coolant Temperature Gauge Sender; Coolant Low-level Control Unit (1990+); B7 Page 12 of 18 /Green Green/ Blue/ or Blue/Brown /Yellow Gray/ & Gray Brown White White/ White/ Green/Yellow Green Yellow/Blue and /Yellow White/Violet Green/ /Blue /Gray Yellow Brown / or / Yellow/ or Yellow/Blue
E E01 E02 E03 E04 E05 E06 E07 E08 E09 E10 E11 E12 E13 Rear Wiring Harness Lights Interior Lighting Emergency Flashers/Turn Signals Heated Seats Running Lights ~ Left Rear Fog Light (Europe Only) Emergency Flashers/Turn Signals Back-up Lights - E14 Fuel System E15 E16 E17 E18 Rear Window Defroster Brake Lights Running Lights ~ Right G Individual Circuits G01 Power Windows; Heated Seats G02 Idle Boost Control G03 Heated Seat Control Units G04 Alternator Exciter Wire G05 Seat Belt/Brake Warning System G06 Oil Pressure Warning System G07 G08 Interior Lighting G09 Lights G10 Headlight Washer Relay (Europe only) H H01 H02 H03 H04 H05 H06 Fuse 12; E8; G3 D7; G5; A25; Idle Boost Control Unit A/T only: G5; D7; A25; Fuse 18; Back-up Light/Starter Cut-out Switch Fuse 12; E8; G1; Heated Seats Control Units; Heated Seats Switch A16, D4 G2; D7; A25; Fuse 18; Seat Belt Indicator Light; E-brake Indicator Light (A/T 1990+) D1; A4 A9; M1 A1; Wiring Harness; A/T Shift Console Light; Power Convertible Top Switch Light A26; E1 A19; D5; C9 K05 Ignition Switch Key-In Power White & / Gray/ / and Gray/Blue Green/ / / and /Yellow Green / and /Yellow White Seat Belt Relay Terminal G; Seat Belt Switch Seat Belt Relay Terminal 2 (internal) Relay Panel Power Seat Belt Relay Terminal 86; Door Contact Switch (left); Seat Belt Switch Ignition Switch Terminal SU; Seat Belt Warning Relay Terminal 85; Power Convertible Top Switch; Relay 5 (internal) Page 13 of 18 /Yellow and /White Brown Plug A/C Relay; Fuse 1; C7; Cooling Fan Thermo Switch; Cooling Fan HVAC Fan Switch Speed 1; HVAC Blower Fan; A/C Relay; H6 A/C Relay; Battery via Fuse 23 A/C Relay; A/C Thermostat; A/C Compressor Clutch; Idle Stabilizer Valve HVAC Fan Switch Speed 4; A/C Relay (internal) HVAC Fan Switch Speed 1; HVAC Blower Fan; A/C Relay; H2 Seat Belt/Coolant level Warning Wiring Harness Seat Belt Warning System Seat Belt Warning System Seat Belt Warning System Gray/Green Violet/ /White /Gray Gray/ Green/White /Green - HVAC Wiring Harness Radiator Cooling Fan HVAC System HVAC System HVAC System HVAC System HVAC System K K01 K02 K03 K04 Plug License Plate Lights; Trunk Light; Fuse 20 Relay 11 Courtesy Light; B11; B12 B4 Fuel Gauge Sending Unit; B3 Turn Signal Light ~ Left Rear A14; Relay 11 Relay 11; G3; G1 Fuse 7; C4; Tail Light B2 Turn Signal Light ~ Right Rear D19; C21; Back-up Lights; C21 (A/T 1990+) B1 Fuel Pump; Transfer Fuel Pump; Aux. Air Regulator; Control Pressure Regulator; Fuse 5 to Fuel Pump Relay; Oxygen Sensor (1988+) B21; Rear Window Defroster Element C1; Brake Lights ~ Left, Right, High-Mount in Trunk Lid C14; Tail Light Gray/ Gray & /Green Brown/
L L01 L02 L03 L04 Horn Wiring Harness M Individual Circuit, Fuel Injection N Fuel System Power ~ CIS N Fuel System Power ~ Digifant P Plug Fuel Pump Relay Terminal 87 and Fuse 5 (internal); Fuel Injection Power Supply Relay Terminal 86 Fuel Pump Relay Terminal 87 and Fuse 5 (internal); Fuel Injectors Individual Circuits, Battery Power Battery Automatic Transmission (1990+) Power Seat Height Adjust Fuse Power Windows Ignition Switch Power Fuel System Power ~ CIS Headlight Washer Relay (Europe only) R / - Main Fusebox Battery Power Starter Interlock Relay Terminal 30 Main Fusebox Battery Power Fuse 37 (Relay Position 17); Power Window Control Unit Ignition Switch Terminal 30 Fuel Injection Power Supply Relay Terminal 30 Main Fusebox Battery Power ECU Power Supply Wiring Harness R01 Airbag System R02 Digifant ECU, Injectors Plug - A9; G7 A21 N P P P P P P P Brown/ Brown Brown/Blue A25; Relay Terminal 86 B25; Relay Terminal 87 Relay Terminal 30; Dash Wiring Harness Relay Terminal 85; Horn Button Steering Column Switch or Headlight/Dimmer Switch Wiring Harness M01 M02 Plug Green Plug Digifant Relay Terminal 86; Airbag Control Unit; D2 Digifant Control Unit Terminal 14; Digifant Relay Terminal 87 /Yellow Please consult wiring diagrams for your particular car for precise wire routing and colors. Page 14 of 18
How To Read Current Flow Wiring Diagrams 1 2 3 16 15 14 4 5 6 13 12 7 11 8 9 10 Page 15 of 18
1 - Circuits 15: Originates at ignition switch. Supplies power when ignition switch is in ON or START position. X: Load-reduction relay circuit. Originates at ignition switch. Supplies power only when ignition switch is in ON position. Circuit is interrupted when starter is actuated. 30: Battery positive (+) voltage. Supplies power whenever battery is connected (i.e. not dependent on ignition switch position). 31: Ground; battery negative (-). 2 - Connection designation ~ relay control module on relay panel Shows the individual terminals in a multi-point connector. 3 - Relay position number 4 - Reference of internal connection continuation Letters indicate where connection continues on the previous and/or following diagram 5 - Connections at rear of panel Designations of each pin connection. For example, C13 is referring to connector C, pin number 13. See page 3. 6 - Wire size and wire color(s) Color abbreviations are listed in a key on each diagram. 7 - Terminal designation on component 8 - Component In this example, from left to right, the components are:, horn button, fan motor, window heating element. 9 - Ground connection locations Locations are defined in the diagram index. 10 - Current track number 11 - Wire connection designation in wire harness Locations are defined in the diagram index. 12 - Connector in wire or wire harness T1 = 1-point terminal connector; T2 = 2-point terminal connector; etc. Locations are defined in the diagram index. 13 - Current track continuation Number in box indicates the current track number where wire is continued. 14 - Internal connection inside relay panel D7 connects internally to G2, G5 and A25. 15 - Terminal number on relay 85 = Ground side of switching relay 86 = Power-in side of switching relay 87 = Relay switch contact 87a = Normally closed switch contact 87b = Normally open switch contact 16 - Fuse Indicates fuse position number and amperage. Multi-point connector at component Internal connections in component How the horn circuit works (use illustration on previous page): Pressing the horn button closes the contacts sending an electrical signal to relay 6, which triggers terminal 30 to contact terminal 87, completing the path to ground, which closes the circuit sending power to the horns making them honk. Wire connection ~ fixed Page 16 of 18 Wire connection ~ detachable Wire connection in wiring harness Light bulb
Ground Locations 1980-1986 Main ground cables/straps: Battery to the left frame rail; frame rail to the transmission o M/T: On bell housing to the right and rear (as looking at it from front of car) of clutch cable: o A/T: On mounting stud behind ignition distributor: Valve cover to the ignition coil bracket Fender to hood A/C compressor to battery (or engine block) Ignition Control Unit to battery Ground locations: Fuse/relay panel Steering column Cold-start valve (CIS only) Trunk, rear left and right Dash wiring harness 1987-1989 Main ground cables/straps: Battery to the left frame rail; frame rail to the transmission (see examples above) o M/T: On bell housing to the right and rear (as looking at it from front of car) of clutch cable o A/T: On mounting stud behind ignition distributor Valve cover to the ignition coil bracket Fender to hood A/C compressor to engine block (or alternator) Ignition Control Unit to battery Ground locations: Fuse/relay panel Steering column Cold-start valve (CIS only) Trunk, rear left and right Dash wiring harness Engine bay, front left and right ('88+) 1990-1993 Main ground cables/straps: Battery to the left frame rail; frame rail to the transmission (see examples above) o M/T: On bell housing to the right and rear (as looking at it from front of car) of clutch cable o A/T: On mounting stud behind ignition distributor Valve cover to the ignition coil bracket Fender to hood Digifant ECU to firewall A/C compressor to engine block (or alternator) Ground locations: Fuse/relay panel Instrument cluster wiring harness Steering column Trunk, rear left and right Engine bay, front left and right ('91+) Page 17 of 18
Wire Size Conversions Metric Size American Wire Gauge (AWG) Size 0.35 22 0.5 20 0.75 18 1.0 16 1.5 14 2.5 12 4.0 10 6.0 8 16.0 4 25.0 2 General wire size guidelines 16 gauge: 10 amps max 14 gauge: 15 amps 12 gauge: 20 amps 10 gauge: 30 amps 8 gauge: 40 amps If your runs are going to be longer than about 30 feet of total wire length, bump up to the next size wire to reduce voltage drop on a 12V system. Page 18 of 18