LG/G FLASH-TO-PASS (N) (PK) GB PG + UW 2 HAZARD SWITCH B GO UW IGNITION BUTTON UR Black ALTERNATOR R & SWITCH - GT ONLY GR (GK) WN W PG P B 11 N (B) LG/G 2 W OVERDRIVE 1 SWITCH GR Blue Pink GN B R N FUSE BOX LIGHTS LG/P + B * indicates two switches combined in one housing N COURTESY LAMP R E green GP BATTERY WN COIL HEATER FAN GR GW LH REAR HEATER FAN LH FRONT B GW W L NY PW TURN SIGNAL P N CIGAR GW WB P Blue GP 3 G HEATER CONTROL R * indicates two switches combined in one housing 4 GR B 2 PB PW G B GW (B) (G) K 2 Green 3 SEATBELT WARNING LAMP WR component they are connected to. ALTERNATOR WARNING green G UW GK W R W INDICATOR B GP 5 sheet 25 sheet 23 N PW G FUEL PUMP N/LG R G G B WIPER component they are connected to. B Red green GP 1 INTERLOCK SWITCH TEMP GAUGE & SENDER HEATER RW COIL TRUNK/HATCH G 8 Slate W STARTER 3 - F R R B * B + LG/G RW G PW FUEL LEVEL Green RH REAR SWITCH WN B B B 32v blade atc ato magideal block. Pink GAUGE VOLTAGE B COURTESY/MAP B BRAKE FAILURE (LG/N) B SWITCH P RG RELAY P (UW) GAUGE IGNITION DIMMER & FRONT & REAR FUEL PUMP RH TS N Pink B N N RH TS W1 C2 ON - OFF SWITCH P RW P RW LG/N & SWITCH R WR RW B - HEATER FAN MOTOR 12 G R 4 G WR DRIVER B G 2 LG/B IGNITION W G W SWITCH G B 3 green IGNITION Yellow WIPER/WASHER WB LAMP & SWITCH BG B P LAMP R B LG/N 5 RW SY R TEMP GAUGE & SENDER LIGHTER W WLG FROM LATE BENTLEY Slate GR R COIL OVERDRIVE LIGHTER G W WR P Purple + 8 REAR WINDOW DEFROSTER G OIL PRESSURE/WATER TEMPERATURE U/LG INTERLOCK SWITCH GN LG/B UW N GAUGE N GP RG B RP W Blue 4 G RH FRONT GK DIMMER & RW SEATBELT BUCKLE N GR N OVERDRIVE 1 B W GN INDICATOR SWITCH LIGHTS LOW BEAMS LH FRONT GK B HAZARD RW HORN TAIL, REAR MARKER, & R HEATER FAN C1 C2 1 R FUEL GAUGE & SENDER 6 B GW B Right SWITCH B R N GN B P fuse diagram box uplander montana pontiac chevrolet buick terraza 2005 panel instrument 2008 sv6 2006 2007 wiring diagrams fuses info [HZ_6734] 1974 Hazard Switch Pins What Wire Goes Where Mgb Gt Forum Mg W FUEL GAUGE & SENDER 3 SWITCH RG N R G WIPER/WASHER Source: mossmotors.com. Ind G GK W G endobj G COURTESY LAMP HIGH BEAM INDICATOR G FLASHER & LAMP BRAKE SWITCH OVERDRIVE SOLENOID 3 HEATER FAN TAIL LIGHTS & 4 W Y NP R W P B GW ILLUMINATION LAMPS GAUGE VOLTAGE B LG/G & DOOR SWITCHES R RW GO B RW W BRAKE FAILURE R G UW B Y 1 SWITCH S B GN G UR MODULE N/LG L 4 PB 4 B 6 B G W GP G N FRONT PARKING GR PW IGNITION 7 FLASHER W2 C1 OVERDRIVE RW Black G (GR) 1 N N R SWITCH R G WARNING LAMP FRONT PARKING WG N/LG GK PW Batt + + FUEL GAUGE & SENDER GK G W LICENSE PLATE LAMPS Right 8 Left P INDICATOR LG/G P GR C2 W2 1 RW G LIGHTER L B STABILIZER F W R CONTROL GR YG R G G MGC - UK MARKET R WB IGNITION OVERDRIVE RH REAR (UW) GN GP U W P R SPEEDOMETER G W B green R GR Diary of an MGB: Let there be light - Fuses and Relays. endobj B green component they are connected to. R SWITCH CONTROL Right 3 SWITCHES RADIO Y Yellow B R DIMMER & FRONT PARKING W1 B (N) B SWITCH PW HIGH BEAM INDICATOR (G/K) W W HAZARD WG RG TEMP GAUGE & SENDER N BRAKE GR G UW 7 HAZARD YP PK + B (LG/N) WASHER MOTOR P YU GW WB *HORN B + GP N RW GB B FLASHER A dmp PUBLICATION 2005 LG/N PW BW R N FRONT PARKING & LG/G B COIL R 3 3 Yellow N Blue Black G N B YN 1 RADIO FUSE BOX + WB LAMP LG/G PB 1977 Mgb Fuse Box Wiring - New Fuse And Relay Box Location Before I Go. B UR GP G GW B GB SWITCH component they are connected to. MARKER LIGHTS RW BUTTON RW FRONT PARKING 1 SWITCHES SWITCH SWITCH = one pin of a multi pin connector. B B (WR) B (UW) W COURTESY LAMP DIMMER WR R W BATTERY COIL W Left RG GR LH REAR W1 C2 LG/B LIGHTER GR (P) B (UW) P R HEATER CONTROL N RW R UW I TEMP GAUGE & SENDER YK HEADLIGHT & DOOR SWITCHES P B 1 G G B GAUGE & DASH D wiring kit. REVERSE LIGHTS R Slate LOW BEAMS RELAY RG B SWITCH PB HEADLIGHT SWITCH B W 1 P IGNITION B RH FRONT W (U) LH REAR TRUNK OR HATCH B GAUGE & DASH RG 8 RW B PB LH FRONT P PK MODULE 2 GAGE & SENDER 6 GN N 2 FUEL PUMP U G FROM HAYNES LG Light Green INDICATOR B N/LG B BATTERIES LIGHTER RG WU WN B B PB LIGHTER GP N W White B GR B GN Wire colors shown in ( ) are supplied as part of the CONNECTION (N/LG) R G BUTTON N INDICATOR SOLENOID RG LICENSE PLATE LAMPS G 2 & SWITCH B WR GY WN B S G W GAUGE B FLASHER 2 1 TURN SIGNAL WR WB HEATER FAN 1 WATER TEMPERATURE PB W PB W 6 R B COIL 1 P GR LG Light Green LG/N Fuses may be added to the mgb in order to protect auxiliary equipment such as driving lights trailers and high power entertainment systems or to enhance the meagre fuse protection of the original car. 2 RH TS RG 5 & SWITCH - GT ONLY SPEEDOMETER NB W G 3 1 7 5 3 FUEL PUMP Wire colors shown in ( ) are supplied as part of the RW HEATER CONTROL B SWITCH component they are connected to. SWITCH LAMP WB GO LG/G R G B 5 PW R DISTRIBUTOR R/LG R 1 B B SEATBELT BUCKLE R RW (LG/N) (UW) HEATER FAN MOTOR G B = one pin of a multi pin connector. SPEEDOMETER SWITCH TURN SIGNAL *TS SWITCH G (GR) HORNS B WIRE U B CONTROL INDICATOR B 3 WASHER MOTOR R SWITCH STABILIZER B 3 R R TURN SIGNAL B P BG & RELAY G SWITCH 3 RW FLASH-TO-PASS P - YP W B FUSE BOX 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. G INTERLOCK SWITCH R R GAUGE VOLTAGE TAIL, REAR MARKER, & COLOR CODES YB 1 B N COIL Y LOW BEAMS LH TS WN OVERDRIVE OVERDRIVE G GR RW FUEL PUMP G STARTER SWITCH ON - OFF SWITCH LH FRONT I Right PG Brown N (LG/N) LG Light Green Y REVERSE LIGHTS N B CONTROL SWITCH HIGH BEAMS G 1 sheet 9 N RW B TRANSMISSION Y WIPER/WASHER B B + ALTERNATOR WARNING ALTERNATOR TRANSMISSION B GN RG OVERDRIVE B R GU <>>> LH FRONT COURTESY/MAP UR R Y INDICATOR Slate Y R IGNITION GP YW GAUGE & DASH LH REAR BATTERIES B (B) SWITCH UW GB (R/LG) LICENSE PLATE LAMPS UW GW PW 8 B 4 P LG/G GN REAR WINDOW DEFROSTER UW Y I need a diagram for my 1979 MGB fuse box. HAZARD P PG REAR WINDOW DEFROSTER 4 4 TURN SIGNAL OVERDRIVE R W BG 4 3 RW LG/G SWITCH G ALTERNATOR SWITCH TEMPERATURE C1 C2 Left P ON - OFF SWITCH R UW N B MARKER LIGHTS YO WN PW P G HEATER CONTROL Yellow UW GR U WG SWITCH LAMP G SWITCH L FLASHER G N U HORNS NP N UR W2 1 (LG/N) SWITCH N Roadster LIGHTS L ILLUMINATION LAMPS PW GR W INTERLOCK SWITCH (R/LG) R ILLUMINATION LAMPS TACHOMETER P 3 UR PB YN WB W B B N OVERDRIVE (U) Slate SIDE MARKERS HEADLIGHT FLASHER 5 Enter your email address to follow this website and receive notifications of new posts by email. LH REAR SY SWITCH ILLUMINATION LAMPS W SWITCH 8 SP 12 Note that we kept the wiring very neat and gave the bends and routing a factory look. C1 C2 PSNGR 14 Images about 1977 Mgb Fuse Box Wiring - Wiring Diagram Schemas : 1979 MG MGB Wiring Diagram | schematic diagram wiring, [DIAGRAM] 1967 Mgb Wiring Diagram and also [DIAGRAM] 1967 Mgb Wiring Diagram. B IGNITION Green LH REAR P B N B (P) RELAY (N/LG) LAMP N SWITCH UR by one gauge to allow better current capacity. HEATER FAN (LG/N) R/LG RH REAR N B 5 HAZARD SWITCH W ILLUMINATION LAMPS (UR) B LAMP RG (UW) P B WATER TEMPERATURE LH FRONT YN N HEADLIGHT GR U ILLUMINATION LAMPS W2 W1 Purple CONTROL Right WIPER 8 LIGHTER N & DOOR SWITCHES B R *These two switches are combined in one housing LG/B SWITCH P 3 RADIO REVERSE LIGHTS UR B G YP R COLOR CODES GB TAIL, REAR MARKER, & W (N/LG) * DIMMER & FRONT PARKING EGR SERVICE HIGH BEAMS Blue B BUTTON Right CIGAR LIGHTER U B HEATER CONTROL RW ANTI RUN-ON & SWITCH & SWITCH N YN STABILIZER OVERDRIVE FLASHER P RW SWITCH LIGHTS RW OVERDRIVE G Ind Ind FUEL LEVEL SWITCH REVERSE LIGHTS TEMP GAUGE & SENDER B NP 7 P RN P LIGHTER W LH FRONT 7 WG W HIGH BEAM INDICATOR LOW BEAMS PG PB MOTOR B B CIGAR G GW W RG B FUEL GAUGE & SENDER STARTER LG/P B G RH REAR B * B GP GP BRAKE SWITCH HIGH BEAM INDICATOR B GP G P U B GY HEATER FAN SWITCH R 1 HEATER FAN MOTOR GK FUSE BOX BATTERIES RADIO CIGAR LIGHTER NB B+ Ind OVERDRIVE ON - OFF SWITCH W W ALTERNATOR WARNING . N SWITCH LG/P LIGHTER G G A dmp PUBLICATION 2005 W ALTERNATOR WARNING HIGH BEAM INDICATOR G B B RW FLASHER B 1 WN DIMMER P & DOOR SWITCHES Black & LAMP B B+ Ind G (W) 2 HEATER FAN MOTOR N R/LG (U) YU 2 W B N N GO 1977 Mgb Fuse Box Wiring Wiring Diagram Schemas from wiringschemas.blogspot.com. COLOR CODES SPEEDOMETER WB (R/LG) PB REVERSE LIGHTS UW WR PW P Enter your email address to follow this website and receive notifications of new posts by email. GAUGE VOLTAGE P GR RW U K P (N/LG) ON - OFF SWITCH TACHOMETER UR W PW SWITCH B R WIPER REVERSE LIGHTS 1 UW LG/N - FUSE BOX O WG COURTESY LAMP GR UR HEADLIGHT W 3 ILLUMINATION LAMPS LH DOOR LG/N FUEL GAUGE & SENDER GU P B SWITCH FLASH-TO-PASS UR BALLAST * 2 - DIMMER Wire colors shown in ( ) are supplied as part of the GW B OVERDRIVE P COUNTER & LAMP LAMP 2 (UR) RW RW PW 3 BATTERY NP Green P I Wiring and Fusing - BS-AU7 Colour Codes In the United Kingdom the British Standard BS-AU7 determines colour coding of automobile wiring. G B Pink G Green REVERSE LIGHTS INERTIA GW (U) INTERLOCK SWITCH R W R BG IGNITION GP WASHER MOTOR UW DISTRIBUTOR RW 1 RW Right 5 Subscribe to: . Y UW B & SWITCH - GT ONLY N GW LH FRONT LG/G sheet 8 1 N (B) (GR) B R S N Mgb Fuse Box Diagram - Wiring Diagrams cars-wiringdiagram.blogspot.com. WATER TEMPERATURE UW UW 10 Yellow R W GAUGE & DASH WB NW DISTRIBUTOR SWITCH * indicates two switches combined in one housing G green CIGAR LIGHTER - G G UR P RN 1 G 7 B 4 B U GW YN LH TS P 4 R (N) (PK) Right 1 RW P GW R UR B B LG/N DIMMER GW P ON - OFF SWITCH COIL G 8 WB LG Light Green Ind HAND BRAKE G FROM BENTLEY E1367W WN P GW B RH REAR (WG) N HORN G W TACHOMETER Yellow B Y & INDICATOR (GT only) G EGR SERVICE B 18 Images about No Power to Half of Fuse Box : The DC Wiring Page - Connectors, Fuses and Wire, Cat 257b Fuse Box Diagram and also The DC Wiring Page . R G R K COURTESY LAMP HORN WR LG/G B LG/N 8 (GW) (GW) R BALLAST green RADIO UR B 1 W R SWITCH BO OVERDRIVE UW RH TS COLOR CODES PB COUNTER & LAMP R PSNGR 1 SWITCH BW P INERTIA W CONNECTION red WG COURTESY LAMP UR R LG/U TACHOMETER F WB SEAT SWITCHES W G ILLUMINATION LAMPS B *TS SWITCH RH REAR R B INTERLOCK SWITCH GW 1 FUEL PUMP & SWITCH WARNING LAMP NP (GW) R G 3 component they are connected to. 5 Left GN 2 G RW B Brown HEATER CONTROL UW FUSE BOX RW GR R/LG COLOR CODES 2 4 COUNTER & LAMP G G W + P LAMP & SWITCH cars) I upload it to these pages for future reference - including jobs and OIL PRESSURE/WATER TEMPERATURE (U) UW RW B B Yellow NW B SWITCH G green RH TS GP B & SWITCH YP P NOT USED - LEFT OVER FROM YN Y & SWITCH R Ind W Slate P GN FUEL PUMP R GR GAUGE VOLTAGE 3 red WB PW W2 C1 LG/P W STARTER (N/LG) G green SWITCH (U) GW LAMP INTERLOCK SWITCH PASSENGER SEAT green 3 Y W2 YP W HIGH BEAM INDICATOR COURTESY LAMP YR BUTTON 1 TAIL, REAR MARKER, & IGNITION ALTERNATOR VALVE & SWITCH FLASH-TO-PASS CONTROL CIGAR LIGHTER WR MARKER LIGHTS B HIGH BEAM INDICATOR Ind 7 (UR) LAMP GO SWITCH 6 N GP DISTRIBUTOR 2 BRAKE CIGAR LIGHTER Red 5 GR 9 W/LG R L (P) LIGHTS GO CIGAR GP WR REVERSE LIGHTS WIPER MOTOR O green WG WN MOTOR SWITCH STARTER * and indicate two switches combined in one housing RW component they are connected to. LOW BEAMS B N WASHER MOTOR R R G STABILIZER WIPER MOTOR LG/G Mg mgb technical which circuits are fuse protected. B 3 G NR mgb fuse. DIMMER & green N G G 2 G G R REAR WINDOW DEFROSTER, SWITCH MARKER LIGHTS GK PB Y TAIL, REAR MARKER, & 6 C1 UR TRUNK LAMP P THROTTLE SWITCH (S) Mgb fuse box diagram. B RG 5 HEATER CONTROL RW U YN Red B R G LOW BEAMS W White A dmp PUBLICATION 2005 G (P) LG/N W WIPER/WASHER BG G 2 GN B N W2 GW W WIPER MOTOR 1 GK 2 GN DIMMER 4 PW GP LIGHTER B INDICATOR B SPARK ADVANCE G N & LAMP P 5 LG/P GN GW B B PK WB CONTROL R GN B LH TS N 1964-1978 MGB Electrical Wiring Diagrams PDF Updated: April 2023. It burned all R GR P B G GN R click here for the MGB tips home page. UW U/LG U UW 2 HORN B B B B green G CIGAR LIGHTER B FLASH-TO-PASS PW W SEATBELT WARNING LAMP B RG G G GW CIGAR B B NY B (GK) G B Explore interactive fuse box and relay diagrams for the MG MGB. COURTESY LAMP WB Left G N (GK) B jqezy^\gd9" +w-jvSyYZw4Z]E%'q BUTTON = one pin of a multi pin connector. SOLENOID B Right FUEL PUMP Light Green R RN 5 (GR) B L R/LG K R W1 W2 UR P B *TS SWITCH INDICATOR PK Green 3 WN GY FRONT PARKING & REAR WINDOW GK P B C2 N TACHOMETER W White 1 IGNITION W WR TEMPERATURE B G P SPEEDOMETER Yellow Left B RW SEATBELT RW (N/LG) GK 2 COURTESY LAMP U TRUNK OR HATCH SWITCH G P B 6 B (GR) THERMOSTAT YN WR 4 GP GN UW RW N sheet 13 CONTROL 3 GW * G W G GK G GR R LG/N G *TS SWITCH 6 - G P SWITCH, & INDICATOR B CIGAR LIGHTER N R 1 WIPER MOTOR PW N GK N component they are connected to. 6 R B TRUNK/HATCH REAR WINDOW green & SWITCH - GT ONLY TEMP GAUGE & SENDER GP N W WIPER MOTOR G B G HIGH BEAMS GK P N K BATTERIES P 4 Y YG RG PW U LG/N B G SWITCH YK 3 (WG) B R U/LG WG Wiring diagram for mgb later cars. N G R P #MGB and GT Colour Coded Wiring Diagrams. B W B 8 WG B - R P Pink LICENSE PLATE LAMPS Wire colors shown in ( ) are supplied as part of the DIAGRAM 8 - 68/69 MGB W B SPEEDOMETER (B) YP L GK W LG/N GN R/LG R HEATER CONTROL R WB YP BATTERY 2 B CONTROL GAGE & SENDER LG/N RG UW G WB FROM BENTLEY 2NB034 2 P RG G G UW N W N B GR Testing battery and charging system. (GR) R HAND BRAKE HEATER CONTROL RW P RW STABILIZER RW B RW GB DIMMER & U TRANSMISSION W2 C1 BRAKE B PW RH FRONT CIGAR LIGHTER 2 BATTERY RH TS 1 HEADLIGHT * indicates two switches combined in one housing WB R Brown O G P W BUTTON G B DISTRIBUTOR LG Light Green Right RG P WN green BW + + DIMMER & B+ LAMP & SWITCH SWITCH DIMMER & RH REAR N 2 UW N GN R GK 1 P RW 3 GW CONNECTION K FUEL GAUGE & SENDER LIGHTER Wire colors shown in ( ) are supplied as part of the * and indicate two/three switches combined in one housing GW PW ANTI RUN-ON STABILIZER W B HORNS G N FROM BENTLEY E2766W WB RG IGNITION HAZARD SWITCH B N Orange STARTER RW R B PG GP 8 G TACHOMETER P INERTIA *TS SWITCH LOW BEAMS B B W/LG 1 N *TS SWITCH LG B & TEST SWITCH help! WR DIAGRAM 2 - 64/67 MGB LIGHTS R RH FRONT + * FLASH-TO-PASS G GR GW R/LG COURTESY LAMP (LG/B) (U/LG) RW IGNITION G WASHER MOTOR LH REAR PW FLASHER COURTESY LAMP GW OVERDRIVE 2 Web if only there were color wiring diagrams. 2 DIAGRAM 5 - 68/70 MGB Ind Ind GR GAUGE & DASH 11 *TS SWITCH G Wire colors shown in ( ) are supplied as part of the N B LH REAR TURN SIGNAL G 5 GP Right G PW G BRAKE FAILURE PK R HORNS N LIGHTER DIMMER & Right %PDF-1.5 Wire colors shown in ( ) are supplied as part of the 4 (GW) R 2 P GW R WG N MARKER LIGHTS B B PW Pink NY RELAY B WLG B G YP Black G Green INDICATOR TACHOMETER OVERDRIVE B YO W 3 GR G green (LG/B) B * DIMMER & W WN G R B ON - OFF SWITCH G G 3 U/LG GR GW (GR) B R ANTI RUN-ON SOLENOID *HORN B LG/N B Source: diagramspace.blogspot.com. TACHOMETER COURTESY LAMP CIGAR LIGHTER HEATER LH REAR PW R R G P HORN F Ind GAUGE 2 REVERSE LIGHTS G NY GN 7 HEATER FAN INDICATOR (B) HEADLIGHT SWITCH RADIO FUEL LEVEL green HEADLIGHT Black Pink R/LG SWITCH HIGH BEAMS 6 P BATTERIES 1 G G COURTESY LAMP CIGAR 3 YR B LG/N GW GR LAMP W White SWITCH + (LG/N) SWITCHES LIGHTS GK RG N N Spam free: Maximum of 1 email per month, Thanks for visiting my little site! - Batt + + BG 2 RW FRONT PARKING & RH TS RG CIGAR This should be around 7v.If nothing the problem is probably with the ballast resistor. (U) CIGAR LIGHTER 2 SWITCH FUEL GAUGE & SENDER INDICATOR LIGHTER GB W OIL PRESSURE/WATER TEMPERATURE RW BRAKE FAILURE SWITCH INERTIA DIMMER RADIO IGNITION TAIL, REAR MARKER, & STARTER R GW INDUCTION RG G SWITCH G RADIO 4 7 ON - OFF SWITCH hot spot, burned the cover off the ten-gage wire and burn baby, burn! G SEATBELT BUCKLE Y OVERDRIVE LIGHTER LIGHTER 2 B PK & LIGHTS PB INTERLOCK SWITCH RG C1 C2 RH FRONT P WG 3 R R 3 PB YO green TAIL LIGHTS & RW G (UR) GAUGE & DASH B LG/G WB LAMP RW SWITCH N GAUGE Purple 4 W GR HAZARD SWITCH 1 RW FUEL GAUGE & SENDER N GR 2 LG/G SWITCH RW U WR Purple (UR) REAR WINDOW DEFROSTER P Yellow Black G N component they are connected to. GN RW R R B LOW BEAMS R Brown G B 7 (GR) G GR GW W GT B 1 RW UR W Lucas use a 7 colour set in which plain colours - purple, green, blue, red, white, brown and green are supplemented by a further group using a base colour with a thin line trace of a different colour. 3 UW RW HAZARD WG DIAGRAM 4 - 68/69 MGB STARTER HIGH BEAMS W BG SWITCH TAIL LIGHTS & TEMP GAUGE & SENDER COURTESY LAMP PW RW P LH REAR GR W G BRAKE SWITCH BRAKE FAILURE PW NP CONTROL WB R G G ALTERNATOR GAUGE & DASH RW R GW W N 2 B RW L green W - GN UR B RH REAR UW (R/LG) UW RW B SWITCH 3 (UW) 1 RN G HORN IGNITION wanted the connection to the new fuse box under the dash, and built the wiring P RW + G Read more: W G P K N HORN N G INDICATOR LIGHTS RELAY HEADLIGHT R & SWITCH W & SWITCH - GT ONLY B F PB GAUGE & DASH P INTERLOCK SWITCH O 6 LOW BEAMS RW TACHOMETER WB G B GN LG/N CIGAR LIGHTER B W Y N RW SWITCH LG/N Wire colors shown in ( ) are supplied as part of the SOLENOID B COIL ILLUMINATION LAMPS R TRANSMISSION & DOOR SWITCHES W LH REAR STARTER BRAKE FAILURE PB B W/LG Green ALTERNATOR GB Wire colors shown in ( ) are supplied as part of the P Y B 5 8 WIPER B U/LG (P) B A dmp PUBLICATION 2005 5 GN UW GK N LG/G TEMPERATURE LIGHTER 6 UW Pink C1 C2 PB W DISTRIBUTOR REAR WINDOW DEFROSTER W U GN BUTTON WB ILLUMINATION LAMPS W YP G Pink W W MARKER LIGHTS W2 W1 SOLENOID G SWITCH WASHER MOTOR OIL PRESSURE/WATER TEMPERATURE RN P LIGHT/SWITCH OIL PRESSURE/WATER TEMPERATURE PW UW LG/P Left B FROM BENTLEY G B P IGNITION R G 3 U/LG G FRONT PARKING 2 Drag the slider left to right to donate what you can. B + B+ WB HIGH BEAMS Left B N B GR N G R LICENSE PLATE LAMPS BRAKE SWITCH LG/G LG/G RW PK B RN LOW BEAMS + + Purple P N WASHER MOTOR PB N W NY YR WN LG/B SWITCH YN (R/LG) 7 G SWITCH R 4 B Y WIPER/WASHER LIGHT/SWITCH * FLASH-TO-PASS GAUGE & DASH RW 3 U/LG G RH FRONT RW G N W1 C2 NP (R/LG) B green N + N HEATER N Yellow 2 W GR G IGNITION 4 LH TS RG N GR GU GR green Y GN R N UR G B Red Red G 7 Green G RADIO N B SPEEDOMETER SP BRAKE Turn the ignition on, and the fans should start. 7 FLASHER W GN G N 1 N RH REAR FLASH-TO-PASS P WLG DISTRIBUTOR - Green MGBGTV8 B RW Y Y LG/W G YP W G SWITCH G SWITCH G (LG/B) RELAY GAUGE GN Purple RG BRAKE U/LG G WB 3 https://www.advanceautowire.com/mgb.pdf looks like there should be three brown wires 1.one to seatbelt buzzer etc. LG/G SIDE MARKERS R B CIGAR P My radio has quit and I am sure it is a fuse. 6 HORNS RW WB 2 (LG/N) R GK G B PW UW WG G * PASSENGER MOTOR PB YR 8 PW R B 6 P BELT INTERLOCK SYSTEM 3 LICENSE PLATE LAMPS 1 RH FRONT R G (GW) R SP 2 LG/N 7 GT UW (WG) Red 1974 - 1975 MODELS WITH SEAT WIPER/WASHER P WIPER MOTOR F+ Ind Right 3 W R GP STARTER WB B G P SWITCH B P LG Light Green B NY ALTERNATOR RW B GAUGE VOLTAGE GB K 7 RW P R R Slate LG/N WIPER/WASHER B+ 4 (U/LG) BATTERIES R Purple 1 PK B B G PB WG UR Orange *TS SWITCH 2 G G (R/LG) P ALTERNATOR WARNING G GAUGE & DASH K (WR) PB * WB mods I do on my own MGB. hope you find them useful. B 6 YO L TACHOMETER Y DIAGRAM 1 - 62/64 MGB R (P) (GR) 3 W CIGAR RW WB RW BUTTON (P) + G B G G GR G BRAKE FAILURE WN W + & DOOR SWITCHES Right P 8 WARNING LAMP GO TEMPERATURE W + B+ P 3 green UR GN BUTTON B R I O RADIO I P GAUGE VOLTAGE + RW - P R DISTRIBUTOR component they are connected to. GP U STARTER 3 Right INDUCTION BG R C1 C2 UW INERTIA BUTTON C1 C2 Y component they are connected to. * indicates two switches combined in one housing W SEATBELT BUCKLE GK LG/B RG RW G 5 N Y B GW COUNTER & LAMP G B G HIGH BEAMS - WR Car Electrical 1 Way Fuse Box Repair Wiring Cables Flex Protection Fuse Holder (Fits: MG MGB GT 1977 1.8) 3.03. 4 RW LG/B N P PB Fuse Blocks. W White B Red B GW RW Slate PW B B ALTERNATOR WARNING WLG + R N Right PB R (P) sheet 21 W HIGH BEAM INDICATOR LG/B DIMMER W = one pin of a multi pin connector. B DIMMER TURN SIGNAL HEATER CONTROL RW REAR WINDOW DEFROSTER SWITCH WN P P 8 G YN P GK GAUGE & DASH FUEL LEVEL STARTER R A dmp PUBLICATION 2005 (LG/B) RW B B Yellow LIGHTS Slate STARTER Ind Ind & SWITCH STABILIZER R RW DISTRIBUTOR LG/P #MGB and GT Colour Coded Wiring Diagrams - MGB tips mods and maintenance #MGB and GT Colour Coded Wiring Diagrams steve livesley 23/01/2020 Downloads, Electrical Previous Next Some excellent easy to read and follow wiring diagrams which are colour coded for each of the fused circuits. 2 SWITCH HORNS 2 LICENSE PLATE LAMPS RW GP REVERSE LIGHTS BG LICENSE PLATE LAMPS Y 1 HIGH BEAMS P GAUGE LIGHTS (G) & LAMP G IGNITION SWITCH GN LG Light Green ILLUMINATION LAMPS B G R/LG R B ALTERNATOR WARNING R G 2 N R/LG LAMP R LIGHTER OIL PRESSURE UW SWITCH G WASHER MOTOR B W LG/G PG Blue (WG) L Ind B COURTESY/MAP ALTERNATOR WB B Brown LG/P COLOR CODES & SWITCH - GT ONLY 1978 & LATER MGB G LIGHTS RW + B FUSE BOX R RH TS UR SWITCH SOLENOID 1 P IGNITION 1 0 obj N WARNING LAMP SWITCH R (LG/B) GO 4 BATTERIES SWITCH LG/G Right G HAZARD SPEEDOMETER 3 GK LICENSE PLATE LAMPS + B W L SWITCH ON - OFF SWITCH INDICATOR Purple Left GK ILLUMINATION LAMPS R 4 * (U/LG) Left RADIO - GR TURN SIGNAL YR N HEADLIGHT *TS SWITCH GR GW GR B TRANSMISSION STARTER B W2 C1 3 B B G B GP R LAMP LH TS GK FRONT PARKING LH REAR Y THROTTLE SWITCH GP HEATER CONTROL RW FLASHER RW INDICATOR G FLASHER G GAUGE & DASH YP IGNITION P R STARTER (R/LG) BRAKE SWITCH SWITCH RELAY RW COURTESY LAMP 2 Y N 2 Right SWITCH PW (U) UW G cars) I upload it to these pages for future reference - including jobs and G ALTERNATOR 2 GB FLASHER B Black 3 G 5 HAZARD G & DOOR SWITCHES COURTESY/MAP WASHER MOTOR B COIL ON - OFF SWITCH Mgb fuse. RG G G LICENSE PLATE LAMPS PW GN L STARTER WB OIL PRESSURE B LAMP W 2 (LG/B) WR G N UR R 2 G W B LG/B A dmp PUBLICATION 2005 7 CLOCK U (GR) W GW R GR TACHOMETER FROM BENTLEY 3NB067 GAUGE & DASH B G LG/P I YN LG/N PG P P R WB G LH TS (S) Right FROM HAYNES R 3 LICENSE PLATE LAMPS 2 GK Red B RH REAR HIGH BEAM INDICATOR LG/G HAZARD PB FROM BENTLEY E2235W RW BATTERIES P GK HAZARD SWITCH (U) NY CIGAR LIGHTER R 4 B HAND BRAKE SEATBELT (U) RW B GK SPARK UR Batt U 3 B GP WN G RELAY Brown R WB CIGAR HEATER FAN MOTOR 7 = one pin of a multi pin connector. P DIMMER WATER TEMPERATURE YP GW SWITCH P L FLASHER L RH TS LG/G I OIL PRESSURE P W B 4 B LG/N K GR ILLUMINATION LAMPS G G 2 GW LH FRONT OVERDRIVE P G LAMP & SWITCH DISTRIBUTOR G GB RW 8 But there are over 100 fuses. B WB HEADLIGHT B COUNTER & LAMP UR (B) N G WN GK ILLUMINATION LAMPS UW SY RW Right Ind DIMMER 2 FUEL LEVEL WR PW G B G B 6 WB L TURN SIGNAL & TEST SWITCH GAUGE R BUTTON LAMP LG/P R ALTERNATOR WARNING 4 4 RW BALLAST W RN & SWITCH HEATER SWITCH P 1 B LG/N GW LG/N GP GN 2 Black R/LG HAZARD G 1 B N CIGAR LIGHTER 3 S R PG R S W B BRAKE SWITCH 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 LAMP & SWITCH GW P FLASH-TO-PASS BRAKE SWITCH SWITCH GN Use a mulimeter and connect it to the + side of the coil (White/light green wires) and ground. N Source: www.britishwiring.com. 4 (LG/N) TRANSMISSION 4 B GK YP GY N G YP W (U/LG) LH FRONT SPEEDOMETER P RW SEATBELT G RG B DIMMER FLASHER RW WASHER MOTOR RW & DOOR SWITCHES STABILIZER UW U I B 3 HEATER FAN U B GW HEATER FAN MOTOR Black N P LG/G HORN GW G HIGH BEAMS 2 B Sign up for e-news. TACHOMETER 5 SWITCH UW YK B P UR B GB GK G 3 G RW RELAY W2 W1 GO B SPEEDOMETER U P Y RH REAR W 2 Green W N R UW G G DIAGRAM 13 - 71/72 MGB INDICATOR GN W2 W1 IGNITION Y O (B) TACHOMETER GR RG RN HAZARD INDUCTION INTERLOCK SWITCH HAND BRAKE P G G Yellow HEADLIGHT * FLASH-TO-PASS IGNITION NG GR GW Y 2 TRUNK/HATCH G Right G I P P G G red LH TS INDICATOR HIGH BEAMS GAUGE + Right LG/G GU B U/LG SWITCH CONTROL Purple 3 HEATER FAN LG/G HEATER FAN RW GR 8 (U/LG) green GK Pink PB P W 4 G PW Pink W FLASHER PW 4 LG/G GO Wire colors shown in ( ) are supplied as part of the INTERLOCK SWITCH - BATTERIES G COIL GK 1 The wiring harness burned Brown PW W GW ALTERNATOR WARNING W B N GAUGE RW Green G W P W BUTTON 2 N NW RELAY B 5 G 2 LG Light Green COURTESY LAMP PB TAIL, REAR MARKER, & HEADLIGHT 3 2 W W CONTROL SWITCH harness from those measurements. 2 GY GW LH DOOR MARKER LIGHTS FUEL GAUGE & SENDER (P) 3 RW . 3 (GR) UR G S Right (LG/B) W UR RW (B) *These two switches are combined in one housing W 8 red G R PW HIGH BEAM INDICATOR R/LG TEMPERATURE WR R G Orange FLASH-TO-PASS HIGH BEAMS G W UW 3 ROADSTER ILLUMINATION LAMPS BATTERY RW BALLAST RW LG/N COLOR CODES HEATER FAN SWITCH RW G G INDICATOR CIGAR 5 S & DOOR SWITCHES B G P A dmp PUBLICATION 2005 LH DOOR Wire colors shown in ( ) are supplied as part of the YP GO N P G Enter your email address to follow this website and receive notifications of new posts by email. GW P OVERDRIVE N GAUGE G GN GW R CONTROL RG B 4 LG/P GY N/LG GAUGE HAZARD *TS SWITCH W 6 EGR SERVICE N G YU SWITCH FRONT PARKING STARTER R ILLUMINATION LAMPS 5 SWITCH W RW R * DIMMER & HEATER FAN BG TRANSMISSION N (B) P B GAUGE RW INDICATOR HEATER FAN STABILIZER B N G W FUEL GAUGE & SENDER Orange RH REAR (R/LG) B 2.one to starter relay 3. one to ignition, headlights and hazard relay. Yellow WN BRAKE YK REVERSE LIGHTS G Mgb Fuse Box Diagram - Wiring Diagrams cars-wiringdiagram.blogspot.com. FROM BENTLEY E3211W P G R G N RW R BALLAST HEADLIGHT R Red G GP G RW LG/G RW W G LOW BEAMS Left 3 UW PW YR GN B F 3 BRAKE FAILURE RW LG/N INDICATOR HORN GN R/LG FLASH-TO-PASS U 2 CIGAR GN CIGAR LIGHTER W REVERSE LIGHTS LG/N 5 SPARK ADVANCE REAR WINDOW DEFROSTER, Our magazine is funded through the generous support of readers like you. Y 5 (LG/N) SWITCH GW W White G GP Yellow LG/N P N - LG/G Orange B & SWITCH B 5 UR sheet 10 (UR) B B P WB 2 R SWITCH WIRE R FLASH-TO-PASS (G) R WLG RH FRONT YP PB (UW) R SWITCH & LAMP B R PW (LG/N) Red WLG SOLENOID FUEL PUMP C1 W1 G = one pin of a multi pin connector. B Slate B OIL PRESSURE R YR THERMOSTAT P LG/N DIMMER & B R BUTTON HEADLIGHT COIL CONTROL DIMMER & 3 GW N N P P Yellow 1971 72 Mgb Wiring Diagram 1977 Mgb Wiring Diagram 64 Mgb. + W2 C1 G & DOOR SWITCHES WR WIRE 6 RG RH REAR C1 C2 G SOLENOID G B 1 ALTERNATOR OIL PRESSURE/WATER TEMPERATURE GW (G/K) B WB GW B C1 C2 OIL PRESSURE green FLASHER UR G B OIL PRESSURE N ALTERNATOR WARNING UR LG/G INDICATOR MARKER LIGHTS B PSNGR 6 RH REAR & SWITCH FLASHER G SPEEDOMETER (G) IGNITION W W2 W1 IGNITION G FLASHER HEATER FAN G GAUGE VOLTAGE GK 5 N B (G) GK YP 2 Slate GW *HORN FUEL PUMP component they are connected to. RG GW 7 Blue LG/N 1 P B RN COIL RW FUEL PUMP batt GB B Y W2 W1 SWITCH N 3 YG P *TS SWITCH STARTER RADIO B 3 U/LG LG/G P WR SEATBELT TRANSMISSION Yellow 1 RW R GAUGE VOLTAGE B U IGNITION K LAMP C1 K MODULE GW R B Yellow P LG Light Green BRAKE SWITCH G DISTRIBUTOR GR FLASHER SPARK sheet 17 GW LICENSE PLATE LAMPS BRAKE B HATCH 2 UR Had a look at the wiring diagram, Yakko has a good point. Orange RW N GR N W White WB LG/P P N HEATER FAN WB B Disassembling and Inspecting the MGBEngine. DIMMER WR 2 W 5 N S VALVE & SWITCH 10 1 3 INDICATOR HEATER FAN RW & SWITCH UR YR Some excellent easy to read and follow wiring diagrams which are colour coded for each of the fused circuits. NY GW FLASHER W - * indicates two switches combined in one housing N LG/N TRUNK LAMP HORN Right (N) (PK) LH TS The original car had a total of 2 fuses, not what you will see on any modern car. 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