WR LAMP & SWITCH N B P WASHER MOTOR PB STABILIZER L IGNITION WN B LG/G G 2 N TURN SIGNAL (P) B G LAMP & SWITCHES FUEL GAUGE & SENDER CONTROL W2 C1 U BRAKE SWITCH B P RW GR LG/G INDICATOR GW P Left GN R GR 3 LOW BEAMS U/LG & DOOR SWITCHES WASHER MOTOR 10 (N/LG) U It burned all G RW HEADLIGHT G WN B Red SEATBELT BUCKLE INDICATOR MODULE U RW - MARKER LIGHTS & SWITCH BUTTON NP RW B GP about a foot in each direction. B YR CONNECTION LH DOOR COLOR CODES GW TURN SIGNAL B NW 2 GN INDICATOR ALTERNATOR WARNING YR P B SWITCH UW W (R/LG) N + W White LICENSE PLATE LAMPS LG Light Green <>>> 4 NOT USED - LEFT OVER FROM SWITCH P + P RH FRONT LH FRONT Brown 1 SWITCH 3 GO LIGHTS RN green (WG) B G CIGAR Sign Up for Our Newsletter: Subscribe. P P B Right G U RH FRONT G B B U Green Orange GAUGE P YP N GB GP SWITCH STARTER G INDICATOR N G UR WR BUZZER 2 R P DIAGRAM 11 - 71/72 MGB P = one pin of a multi pin connector. 8 W W G LIGHTS WIPER MOTOR G GR (P) (LG/B) P UR Wire colors shown in ( ) are supplied as part of the 7 GW GK HIGH BEAM INDICATOR P P B B LAMP SOLENOID (UW) N LG/N HIGH BEAMS B LG/P GR LOW BEAMS UW GP G HAZARD GK FLASHER 5 N HEADLIGHT TRUNK W BUTTON RH FRONT CONTROL WLG G (UR) R (U/LG) B GB WN YR RADIO P (WG) G B 2 RG N B REVERSE LIGHTS GW B G *TS SWITCH G G GU N B 3 R B P WIPER MOTOR UR GU R/LG ALTERNATOR WARNING CIGAR DIMMER CIGAR LIGHTER BRAKE SWITCH WIPER MOTOR G LG/G DIMMER UR G U W PW Wiring Diagrams for MGB, MGC Click links for 33 different wiring diagrams for MGB and MGC, large format in color. G LG/G 4 B N RG LG/P PW HAZARD Correct Ride Height for the MGB. HORNS PB RH TS ALTERNATOR WARNING RG VALVE & SWITCH `Fuse box connections and colours for MGB GT 1972 . 7 Purple WIPER MOTOR WIPER BUTTON R LAMP BATTERIES OVERDRIVE WB OVERDRIVE PW B green 2588c66 1979 cb750 wiring diagram. Source: mossmotors.com. G RW B 5 SIDE MARKERS ILLUMINATION LAMPS RN B W sheet 31 PK CIGAR LAMP G R FROM BENTLEY E3212AW A dmp PUBLICATION 2005 & SWITCH - GT ONLY RADIO G P Orange CONTROL G Black R CIGAR LIGHTER HAZARD P W2 C1 B 8 THERMOSTAT 6 BATTERIES (B) RW G RG GN COLOR CODES ON - OFF SWITCH WN YU N P GY B RW GR R B W N B CIGAR GAUGE G SWITCH UR N FRONT PARKING & RW N NR BRAKE SWITCH LG/N LIGHTER TACHOMETER B B (UW) DIMMER & GR UW PW TACHOMETER FLASHER B R BUTTON GN RW 2 WIPER MOTOR DISTRIBUTOR INDICATOR WIPER MOTOR W REAR WINDOW DEFROSTER green Brown LH FRONT G (G/K) R 1 G (WR) CLOCK R W B B G 5N WIRE + HEATER FAN 1 UW OIL PRESSURE/WATER TEMPERATURE FUEL GAUGE & SENDER & SWITCH COURTESY LAMP PW W1 W2 W (GW) RADIO B B ALTERNATOR WARNING SWITCH HEATER FAN ALTERNATOR WARNING W R Red R Wire colors shown in ( ) are supplied as part of the GW Mgb Fuse Box Diagram - Wiring Diagrams cars-wiringdiagram.blogspot.com mgb fuse box diagram wiring laiser schematic 1977 Mg Midget Wiring Diagram - Wiring Diagram wiringdiagram.2bitboer.com [HZ_6734] 1974 Hazard Switch Pins What Wire Goes Where Mgb Gt Forum Mg Download Diagram elia.akeb.unec.frag.mohammedshrine.org GW W B RW G 6 L R GP (S) WIPER/WASHER + Mgb fuse box diagram. (U/LG) NY 7 BATTERIES RN SWITCH WB G PW Right 1 W Car Electrical Spare 10x Standard Blade Fuses 1 Amp New Fix (Fits: MG MGB GT 1977 1.8) . 2 ALTERNATOR G 3 UR (U/LG) P TAIL LIGHTS & TURN SIGNAL DIMMER P GT FROM BENTLEY 3NB067 HIGH BEAMS N W W RW HEATER CONTROL RW P UW N WG N RW ON - OFF SWITCH N GW Slate INDUCTION P W 2 RW P W G (GW) WR SWITCH GR S LG/G COLOR CODES NB HIGH BEAMS SWITCH RW UW R P CLOCK GAUGE BELT INTERLOCK SYSTEM B O PB I laid the wiring harness out on my work bench, measured the distance from where I WLG G P LAMP *HORN GK (U/LG) R INDICATOR & LAMP GN (R/LG) 5 GN G P IGNITION UW Blue P P GW (G) STARTER RH FRONT HIGH BEAMS INDICATOR RW N TRANSMISSION ON - OFF SWITCH 7 WIPER/WASHER Y GN FUEL PUMP GT B YP W REAR WINDOW 1 B RW UW 3 Right R COURTESY LAMP G B * indicates two switches combined in one housing B GP B N GR IGNITION B YP 4 R R INTERLOCK SWITCH (LG/N) FRONT PARKING & STARTER LIGHTS PG UW UW Green Ind G INDUCTION FLASHER GAUGE N B 6 TACHOMETER N RG G BUTTON W2 1 G GR N P G N White N U G LIGHTER 1 (GW) G B R + B 3 N N G Right G G (GR) 4 3 (WR) P DIMMER W R The return wire from horn to button would (properly) be purple with a black tracer to signify it was live, but going to earth via a switch. G O Wire colors shown in ( ) are supplied as part of the B 8 GAUGE & DASH TEMP GAUGE & SENDER 2 G B 3 LG/G 1 N G GN STABILIZER G PW B 3 R W/LG B GK REVERSE LIGHTS PW WU B GN ALTERNATOR WARNING GENERATOR WARNING LAMP DIMMER 5 U N Green PW B UR WB (N/LG) HEATER CONTROL *TS SWITCH GK ALTERNATOR FROM HAYNES SWITCH P N & SWITCH - GT ONLY HEATER FAN G B 4 1 IGNITION Slate W SWITCH COIL B LIGHTER INERTIA N W STABILIZER RW B WR (U) B COLOR CODES HEATER FAN GW TEMPERATURE R SWITCH HIGH BEAMS P BW GW SY G G 1 B R = one pin of a multi pin connector. LH TS & SWITCH N Wire colors shown in ( ) are supplied as part of the W & TEST SWITCH SWITCH ALTERNATOR LH TS B NP I YP SPEEDOMETER B P OVERDRIVE BUZZER (N) 2 N NP N B (GK) 2 R G W/LG MARKER LIGHTS W + Brown & DOOR SWITCHES STABILIZER PW (GR) 73/74 UK MARKET MGB 1 R (UW) Yellow Green P GP + RADIO Yellow GAUGE & DASH Had a look at the wiring diagram, Yakko has a good point. PB 3 PB TACHOMETER Left 3 G TRANSMISSION STARTER HORNS FROM LATE BENTLEY B HEATER CONTROL G WATER TEMPERATURE UW sheet 13 Right B (N) (PK) W GK INTERLOCK SWITCH GR GW RW B Wire colors shown in ( ) are supplied as part of the RW PB RG ALTERNATOR B GAUGE P TEMP GAUGE & SENDER Batt + + HAZARD G W HAZARD SWITCH LIGHTER TACHOMETER GR HAZARD OIL PRESSURE RW B G GAUGE VOLTAGE N HORNS LG/G 4 Brown R P SOLENOID OVERDRIVE N Y OIL PRESSURE Y U/LG PW HAZARD B RELAY YP W G R green N R WG GR R RG P UW B R SWITCH B Wire colors shown in ( ) are supplied as part of the N RW G R B G BATTERIES LG/G N & TEST SWITCH GN RW GN Left N LG/N A dmp PUBLICATION 2005 G SWITCH 3 2 GN Brown WB FLASHER UR TACHOMETER INDICATOR UW S R NY WIPER/WASHER TEMPERATURE G B R B UR R W RH REAR P CIGAR G K B 2 GP LOW BEAMS GAUGE & DASH COUNTER & LAMP HORNS green GAUGE VOLTAGE UW G RG (LG/B) HAZARD SWITCH SWITCH HAZARD SWITCH 8 FROM HAYNES G B 6 FLASH-TO-PASS SOLENOID G Purple REAR WINDOW DEFROSTER LIGHTER HORN B U 4 1 FROM LATE BENTLEY O SOLENOID BG G N (R/LG) B GP - GK G G Orange N 2 LG/G RH TS Purple TURN SIGNAL Slate B W DIMMER & IGNITION WR CIGAR LIGHTER N RW N TAIL, REAR MARKER, & (B) GY SWITCH RG K UW green STARTER HAZARD 8 CIGAR N B GN LG Light Green SOLENOID GAUGE & DASH P - 1 WIPER Black FRONT PARKING FUEL PUMP K P B WB RW WR GR PG - RW OIL PRESSURE GAGE & SENDER GN B SPEEDOMETER CIGAR BUTTON SWITCH P TEMP GAUGE & SENDER - 1 (N/LG) RH TS PW Note that we kept the wiring very neat and gave the bends and routing a factory look. 8 LG/N A dmp PUBLICATION 2005 COURTESY LAMP R WB SPARK SWITCH Right B COURTESY LAMP R LG TRANSMISSION N 6 4 DISTRIBUTOR Y R FUSE BOX * DIMMER & GN NY 3 P R B N INDICATOR TACHOMETER B SEATBELT & SWITCH B B WR LIGHTS YN G OVERDRIVE G N PW UW 3 COLOR CODES FUEL LEVEL LOW BEAMS GW N GW G wiring kit. 5 * P LOW BEAMS B RW UW GR WR P B BALLAST PW G SWITCH Blue Right G 6 B 1 BW OIL PRESSURE G G TACHOMETER G PB W Green U LG/N * FLASH-TO-PASS B YP B REVERSE LIGHTS LG/B W WLG B YU 4 *TS SWITCH RH TS CIGAR LIGHTER 5 GP GK B YP R I keep a copy in my car just in case I have a problem with the electrics whilst on the road. N Right L sheet 5 G WR B P RN INERTIA LH FRONT TAIL, REAR MARKER, & (N) (PK) RADIO UW FROM BENTLEY 5NB063 LH FRONT R RG W HEATER FAN Left N & SWITCH B 4 RG = one pin of a multi pin connector. P REAR WINDOW DEFROSTER PW N GP 2 SPARK (U) HORN N 1 W1 C2 LG/G B UR G P 7 B RH REAR R LICENSE PLATE LAMPS RW GAUGE Disconnect the new ballast resistor and wiring put things back to original. GK WN G GO B 2 (W) G + U/LG D B SWITCH & LAMP Blue YR (LG/N) RW DIMMER G (GR) LG/B R B C2 GR LG/N SWITCH component they are connected to. BUTTON B W 6 PW P RG PW B INDICATOR N 4 green SEATBELT BUCKLE GAUGE Yellow Red 3 DIAGRAM 17 - 73/74 MGB Right (S) FUEL GAUGE & SENDER B GR RG OIL PRESSURE/WATER TEMPERATURE ILLUMINATION LAMPS TACHOMETER GP WB FUSE BOX UW R/LG YR G U 1 FROM HAYNES 6 HORNS GN RG Purple OVERDRIVE SPARK ADVANCE PW G S Right red INTERLOCK SWITCH TACHOMETER P W2 W1 LG/N R RADIO G N HORNS on donations to keep it going. N W2 W1 Wire colors shown in ( ) are supplied as part of the P INDICATOR YP 3 K MARKER LIGHTS PW GW G R + + LG/G LH FRONT WR R TEMP GAUGE & SENDER B R R RH TS W WLG DIMMER LG/B G Purple (U/LG) + Ind + R HIGH BEAM INDICATOR GAGE & SENDER component they are connected to. TRANSMISSION + PW (LG/B) R 1 R LG Light Green YO GR Red PB R LG/G G G GR INDICATOR UW W White 6 BW RW N N G L 1 Slate N/LG RW LG/G GW B W - TAIL LIGHTS & IGNITION RG LG/N U GK PB HORN G P N W S B WR DIMMER U WIRE B TRANSMISSION G BUZZER SWITCH BRAKE SWITCH 2 B OIL PRESSURE/WATER TEMPERATURE YP N REVERSE LIGHTS green Y CONTROL 5 UR + B P N GR 1 Green PB COUNTER & LAMP RG RH TS U/LG TACHOMETER W F Ind WN G R (N/LG) GN 1972 mgb 1976 mgb. G RW N RH REAR U/LG 11 RW (U) G Slate B P B R B Slate - ALTERNATOR WARNING 2 TRANSMISSION GP B WN (UR) RH FRONT TRUNK LAMP GW PW HEATER FAN TACHOMETER SWITCH R G FLASHER DRIVER COLOR CODES N R INTERLOCK SWITCH G LH REAR 3 White G GU B HORNS 5 IGNITION G RW PW PW P N 4 G B LG/P P LOW BEAMS GR B WIPER/WASHER The only thing that kept the car from burning to the ground was the connector U B PW PW N/LG (G/K) TRANSMISSION S FLASHER Right sheet22 R 4 RW R R (N/LG) GR GW GK N LG/N 2 by one gauge to allow better current capacity. 1 R OVERDRIVE GK U UW HEADLIGHT SOLENOID LG/B B 6 3 ALTERNATOR STARTER R GR FUEL GAUGE & SENDER B RH FRONT RH REAR PSNGR N LG/B G 4 B 2 Left GN G GK B SWITCH SWITCH UR U B G GR W GP B WN LG/N N 2 R/LG R (LG/B) VALVE & SWITCH 1 GK GW 7 WR CONTROL (LG/N) G ALTERNATOR WARNING WB R U PG 6 & DOOR SWITCHES 7 HEATER FAN (G/K) LH TS R RELAY GN (GR) B GK G TURN SIGNAL FUEL GAUGE & SENDER P K sheet 9 B (U) (R/LG) PW R P RH REAR N P I N CONNECTION B WIPER MOTOR YN W RW GR W W2 B 2 RH FRONT K B LG/N 4 WR B W GK TURN SIGNAL + RW YP Slate GU B Green R/LG GW W B G NP GW #MGB and GT Colour Coded Wiring Diagrams. * DIMMER & 3 GW GB GP U WR Enjoying this article? 2 OIL PRESSURE Black B B PW WG RW GR W/LG Pink BRAKE SWITCH HEADLIGHT N B RESISTOR N RW SEATBELT UW G A dmp PUBLICATION 2005 FUEL PUMP B GK RADIO PW IGNITION BUTTON GN 4 2 6 HEADLIGHT TEMPERATURE GP WN Slate W + G RW RG B P B B R G P 2 P 3 G Yellow L RH REAR HEATER FAN Right R MOTOR N U UR 5 LG/P IGNITION R I GY FUSE BOX GP LG/P 6 BRAKE SWITCH A dmp PUBLICATION 2005 WB B R WIPER PB G P B FRONT & REAR (P) green 2 STABILIZER (WG) N RH FRONT W White RH REAR ALTERNATOR STARTER W UR P W/LG K sheet 14 R SWITCH G B 2 ON - OFF SWITCH G WB MODULE B DISTRIBUTOR PW R FUEL LEVEL TAIL LIGHTS & Y mgb. STARTER 1 RADIO GK Wire colors shown in ( ) are supplied as part of the 4 W White B cars) I upload it to these pages for future reference - including jobs and W (UW) Y Left S Batt B 1974 - 1975 MODELS WITH SEAT UW B N LG/N 5 PB W1 C2 1 3 RW G B P RH REAR B P 2 SEATBELT WARNING LAMP WN RW SPEEDOMETER & SWITCH GW G GP LH TS N TURN SIGNAL RG OVERDRIVE P Brown N HORNS G Blue FANS WIPER MOTOR PW component they are connected to. 4 RH FRONT & SWITCH P = one pin of a multi pin connector. BG K WLG CONTROL ALTERNATOR PB UW FUEL PUMP N/LG B G (GR) UW N G WB TAIL LIGHTS & PB R G 8 B 1 RW R UR Brown GR GW RH REAR COURTESY LAMP R GY RW GR B Pink N GN STARTER B 2 STARTER GN F+ Ind G RW HEATER FAN TRUNK/HATCH DRIVER RADIO WG GY TACHOMETER SP GP N N B TACHOMETER W & SWITCH - GT ONLY B 3 SWITCH LAMP GN GO COIL (N) (PK) DIAGRAM 6 - 70/71 MGB (GR) GAUGE VOLTAGE G N/LG B MODULE G PK GW WG Source: diagramspace.blogspot.com. 2 G LG/B 1 WB 1 O W G OVERDRIVE MARKER LIGHTS LH REAR TRUNK/HATCH B N B (GR) B REVERSE P GO CIGAR G UW P 7 N PB = one pin of a multi pin connector. 4 GY - UR B LG/G B P B STABILIZER COURTESY LAMP LOW BEAMS Orange + (LG/N) G RW HEATER FAN N B LH REAR G LG/P 3 TRUNK/HATCH N MODULE RW R B 1 GR FUEL LEVEL P ILLUMINATION LAMPS & SWITCH W 7 HEATER FAN B B 3 UW SWITCH B The site costs me over $1,000 per month keep online and is totally reliant N/LG GN WASHER MOTOR sheet 6 3 7 GAUGE VOLTAGE YG B B RW RW GP R Right R SWITCH STARTER COIL A good example is often purple to horns (usually from the fuse box) where the horn button (switch) earths the circuit. B GR SEATBELT WARNING LAMP WASHER MOTOR W LG/G N/LG WR GR GR 8 Pics about Diary of an MGB: Let there be light - Fuses and Relays : Diary of an MGB: Let there be light - Fuses and Relays, 1977 Mgb Fuse Box Wiring : Mgb Fuse Box Diagram - Wiring Diagrams - Mg mgb mgb gt complete and also [BA_5395] 1974 Hazard Switch Pins What Wire Goes Where Mgb Gt Forum Mg Free Diagram. P Blue N REVERSE LIGHTS (U) G W 5 HAZARD The majority of these kits are designed to mate with the GM steering column and the GM switches that are almost universally used in street rods, not for the switches we have. GAUGE VOLTAGE GR GW S 1 sheet 29 R/LG Batt + + 4 G LH FRONT GR 5 2 GAUGE & DASH green GAUGE & DASH LG/G LG/G W RW RW P B THERMOSTAT L G W N B INTERLOCK SWITCH W W G DISTRIBUTOR G NW SPEEDOMETER information about the MGB and MGB GT classic cars including news and reviews also updates on repairs, servicing and diy modifications I do on my own MGB Roadster. CLOCK RG Buy mgb wiring loom products and get the best deals at the lowest prices on. COURTESY/MAP K E GW (B) STARTER (GR) green FUEL PUMP (LG/N) 1 LICENSE PLATE LAMPS S W B B Right TRUNK OR HATCH In the MGB 70/71 wiring diagrams the purple is used as a feed wire from the fusebox . CIGAR LIGHTER G component they are connected to. Y SWITCH W White B 3 B LG/N G PB Ind B GN N WB SP B CIGAR Red G INDICATOR LAMP & SWITCH RW INDUCTION WIPER MOTOR O 6 B GU GAUGE GW UW LG/B G B Green Fuse Blocks. G R W UR GR 3 YP mgb fuse. HAND BRAKE I GW G SWITCH COURTESY LAMP ALTERNATOR G * SY BG GR GW SWITCH 3 green (N/LG) FRONT PARKING & G TRUNK LAMP LOW BEAMS IGNITION WN FANS DEFROSTER SWITCH GW COURTESY LAMP I 2 B G Black REAR WINDOW G GW R OVERDRIVE RG FUEL LEVEL UR P WASHER MOTOR FRONT PARKING N/LG PW B RADIO LAMP ILLUMINATION LAMPS B Right N FLASH-TO-PASS C2 SEATBELT BUCKLE green SPEEDOMETER LG/G NY G PW (P) W R (R/LG) SPARK ADVANCE WB P 2 UW B B COOLING RW B R (N/LG) GP & DOOR SWITCHES 1 N Slate TACHOMETER 1 N Black Turn on the ignition and measure the voltage. CIGAR LIGHTER REVERSE LIGHTS W 3 Y SWITCH & SWITCH N INDICATOR Black FRONT & REAR GY R HAZARD B P W green GP TURN SIGNAL N BUZZER INTERLOCK SWITCH Right R DISTRIBUTOR RW GW GW SY F Y N R R + + P GN RN B F Blue G W FLASHER W1 W2 (LG/N) P N PG TACHOMETER F LG/N Yellow 1 W W G G 1 B 1975 mustang 302-no wires on my coil so which ones do i need?. (GR) *TS SWITCH W GR B + N B N W G SWITCH 4 4 G PW 3 FUEL GAUGE & SENDER GN IGNITION N N PW LIGHTER RN A dmp PUBLICATION 2005 HORNS B DIMMER GAUGE & DASH PW B LIGHTS 2 TACHOMETER CIGAR CIGAR GW COLOR CODES B B WN COURTESY LAMP U/LG P 2 W *TS SWITCH L (GR) 8 F G B GO (UR) P P RW (U/LG) BW COURTESY LAMP P B B LH REAR CIGAR LIGHTER G green YK STABILIZER G (N) (PK) Black P Purple RADIO GK N P PW DISTRIBUTOR RW Ind HORN RG SWITCH GK B LH REAR N FLASH-TO-PASS G Left LG/P P Blue G W WN C1 C2 R DIAGRAM 4 - 68/69 MGB FLASHER O + B R HIGH BEAM INDICATOR UR A dmp PUBLICATION 2005 = one pin of a multi pin connector. B Black TURN SIGNAL B B RADIO W R U Red Use a piece of wire to jump across the two female terminals in the connector. B B BUTTON 2 P Also behind the dash panel is another Line Fuse for Hazard Flasher Unit Additional wiring needs to be provided from terminal 7 via inline fuses for the relays (if fitted) for LH DOOR BRAKE FAILURE R P W N N COIL INDICATOR Right R INDICATOR * and indicate two switches combined in one housing RW WN YP B LG/N Ind (WR) SPARK N G N EGR SERVICE WN B 2 R N LG/G N N G B Wire colors shown in ( ) are supplied as part of the Right SWITCH 8 Left GK RW GR WIPER/WASHER B Orange FUEL GAUGE & SENDER R LH DOOR TEMPERATURE DIAGRAM 16 - 73/74 MGB R B ROADSTER DIMMER & PB MGC - US MARKET Right 1 B RW U B BG R SWITCH * indicates two switches combined in one housing R W White 1 R/LG HAZARD & SWITCH W G 8 W R G N P G FROM BENTLEY E3211W P 1 R LAMP FUSE BOX 2 N - N R green P R UW SWITCH REVERSE SWITCH K R G (W) FUEL GAUGE & SENDER sheet 1 GR G OVERDRIVE 3 P Slate LH REAR GW R/LG Wire colors shown in ( ) are supplied as part of the LG/N PW GY FUEL PUMP N F WL D E B B Yellow P 4 FLASHER B R N WLG N C2 LH REAR B+ 5 N RW B RH REAR WB Some excellent easy to read and follow wiring diagrams which are colour coded for each of the fused circuits. G RW 3 LH REAR LAMP + FLASHER GO B L G SWITCH GR SWITCH Blue GB RW 3 Slate & SWITCH GB 1 RG B % LAMP P R SY UW LIGHTER G U FUEL PUMP GR GW N NY B RW G HIGH BEAMS PW * indicates two switches combined in one housing 2 2 4 REVERSE LIGHTS Red WIPER MOTOR 1 W RN green LG/N GK (UW) GR COURTESY LAMP STABILIZER RG LG/G INERTIA HAZARD 5 Pink G 2 LIGHTS R PW K G Y - NG & SWITCH SWITCH GK R 4 CONTROL P Y LG/N U/LG RW 1 B FLASHER RW batt LH FRONT N FUEL GAUGE & SENDER W IGNITION Pink R + UR (GR) P REAR WINDOW DEFROSTER & SWITCH LOW BEAMS BALLAST 1 G R ALTERNATOR R 6 BRAKE FAILURE Left W White CONTROL PW U U GW R IGNITION WASHER MOTOR *TS SWITCH 4 LH FRONT GW N B WIPER MOTOR SWITCH CIGAR LIGHTER LG/N G G TAIL LIGHTS & N RH TS 3 SPEEDOMETER SPEEDOMETER W N ON - OFF SWITCH B FRONT PARKING & B G B RH REAR SWITCH B (U) SWITCH B GW HORN LG/Y PW W R R B NR B (G) G B R HIGH BEAM INDICATOR 2 GY WATER TEMPERATURE N (WR) LICENSE PLATE LAMPS Red N P WASHER MOTOR B UW P U PB & SWITCH 1 GK P G (UW) DIMMER & LICENSE PLATE LAMPS (GR) YN (UW) B GAUGE VOLTAGE W Black OVERDRIVE I 3 NB RG (G/K) (GW) BRAKE GN BRAKE SWITCH 1977 Mgb Fuse Box Wiring Wiring Diagram Schemas from wiringschemas.blogspot.com. everything out for the front part of the wiring harness. + GW green GP 3 G GP B LG/G I UW SWITCH B green NY N CONTROL R (W) ON - OFF SWITCH G RW N/LG SWITCH P SWITCH WASHER MOTOR N RW RW U U TEMPERATURE 2 BRAKE FAILURE G B RW (GW) UW 3 ALTERNATOR SWITCH SWITCH SWITCH red LH REAR BATTERY LG/G PB + + WG FROM LATE BENTLEY U SWITCH TACHOMETER 7 N Sign up for e-news. G 2 R RG ALTERNATOR R (R/LG) LG/G SWITCH & DOOR SWITCHES B UW LG Light Green 7 RW GR Removing Hub Nuts clockwise or anti-clockwise? NY 4 G R B WN PB P (N) (PK) FUEL GAUGE & SENDER TACHOMETER LG/G P LAMP & SWITCH Purple W2 C1 INDICATOR OVERDRIVE B STARTER 3 B NY Wire colors shown in ( ) are supplied as part of the YR R 1 1 & SWITCH - GT ONLY