A dmp PUBLICATION 2005 4 FUEL PUMP UR SWITCH G G GK HORN TRANSMISSION green HEADLIGHT LH REAR STARTER UW LG/G TACHOMETER W REVERSE LIGHTS GK Wire colors shown in ( ) are supplied as part of the GENERATOR (B) Left FUEL LEVEL B WASHER MOTOR 2 LG/P (LG/N) N ILLUMINATION LAMPS WB ON - OFF SWITCH ON - OFF SWITCH P DRIVER F Ind STARTER G RG RW WIPER/WASHER GR GW R WIPER/WASHER WN 3 R INTERLOCK SWITCH LG/G + RG P R G 1 R N HEATER FAN OVERDRIVE 6 5 R GY N O 8 3 TACHOMETER TAIL LIGHTS & P G RESISTOR LG Light Green component they are connected to. ILLUMINATION LAMPS IGNITION U/LG Check out our popular MG MGB Manuals below: GENERATOR WARNING LAMP RW LH REAR TACHOMETER green SP TURN SIGNAL BRAKE SWITCH N WB R/LG RW BUTTON RH REAR 11 WG UW GP B LG Light Green 6 W B 2 ALTERNATOR W (S) 1 W G 2 R SWITCH COURTESY LAMP G N P G 2 R/LG Red 5 1 SPEEDOMETER 3 HEATER FAN MOTOR W/LG N L NP R GEARBOX SWITCH RADIO P N NW Brown W PW LG/G 7 4 5 GAUGE VOLTAGE N IGNITION REVERSE LIGHTS TRANSMISSION B ALTERNATOR WARNING W 3 R GK R & SWITCH SWITCH S 2 Left GW N WN G (UR) 4 FRONT PARKING Green G LIGHTS GR SWITCH D GK WG YU B LH TS 2 UW Brown W INDICATOR R R G N BATTERIES B E HAZARD FLASH-TO-PASS R B PW 8 INDICATOR G B W IGNITION LH REAR & DOOR SWITCHES TACHOMETER HEATER FAN Y R 2 G W RW W Green & SWITCH RW GR (GR) RELAY YU (W) Y GB & LAMP R U SPEEDOMETER R G PK R W W/LG SWITCH B HEATER FAN MOTOR GW GY SIDE MARKERS SPEEDOMETER LG/P GR LG Light Green G ALTERNATOR W GP SWITCH White N GK Y Y N GP MGBGTV8 B P NY W RW INTERLOCK SWITCH B W G GN - WLG W U R G P LAMP & SWITCH GP Blue W N R B GR HIGH BEAMS G LH FRONT PW Brown WR N W White LG/G * indicates two switches combined in one housing SOLENOID WR R U Ind P R RW R GW N U/LG P WR C2 & INDICATOR (GT only) RH REAR 4 P FLASHER GN G B GN RW G S DIMMER HEATER CONTROL * 4 OVERDRIVE B B P Blue P LIGHTS B RW RG R B B B G W1 C2 Blue & RELAY LG/N UR P Orange R W G LAMP RW P B WB RADIO RW GB GB G U/LG GP LG/G R W O LG/G G PG B PB WR B YP P N/LG STARTER C1 LH TS P FUEL PUMP GT G G B 2 FUEL LEVEL GAUGE & DASH RW BUTTON 1 G UW 3 Orange (B) B B U N Orange LIGHT/SWITCH WB + B LH DOOR LG/N K Left HAZARD SWITCH B B B B B Pink sheet 25 1 DIAGRAM 7 - 67/68 MGB UR WB G RG RW The MGB Realm. G . G OIL PRESSURE S G WR W B G B G LG/G 1 PW (GW) G GW DIMMER & G ALTERNATOR 2 N G P WLG GY NY HEATER FAN 1 WIPER TURN SIGNAL SY ON - OFF SWITCH INTERLOCK SWITCH YN LH REAR B (P) Purple WN FUEL GAUGE & SENDER BATTERIES LG/P PB P GT FRONT PARKING & L G Pull the alternator plug and see if the draw disappears. B W White PW LICENSE PLATE LAMPS GN 4 INERTIA LG/N R INDICATOR WB LG/G I R TRANSMISSION UW P A dmp PUBLICATION 2005 (U/LG) G RW 3 R WB B TAIL, REAR MARKER, & G B Left WASHER MOTOR * indicates two switches combined in one housing HAZARD G COURTESY/MAP *TS SWITCH CONNECTION N DISTRIBUTOR WR G COLOR CODES U BRAKE SWITCH & DOOR SWITCHES LH FRONT HAZARD SWITCH W B G Left R G SWITCH RG B Since the scratch-built harness also had fused circuits, we used another MGB fuse box (from a newer MGB). LG/G (R/LG) P GN SWITCH * FUEL LEVEL G U R 3 G B P UR N Green LH REAR RW VALVE & SWITCH A dmp PUBLICATION 2005 5 (WR) GR WIPER MOTOR UR green (UW) 5 LH TS G CONTROL W GR B PB RH REAR BATTERY green B G B 2 P W B N WB SWITCH B (GR) B FRONT PARKING BRAKE FAILURE GR GAUGE & DASH GN B IGNITION Pink G CIGAR W 1 HEATER CONTROL 4 OIL PRESSURE WLG G N R NY RW FROM BENTLEY E1898W LG/G R N B OIL PRESSURE B . SOLENOID WIPER B YR LG/N HAZARD R/LG WG W1 C2 UR UW G 4 blocks on my panel, 17amp continous/35amp blow rating. Orange SOLENOID PK DIMMER & DISTRIBUTOR GN G = one pin of a multi pin connector. GK MOTOR Ind B green SEATBELT BUCKLE RH TS P . + B 5 UR PB R A dmp PUBLICATION 2005 LIGHTER PW B G B GB SWITCH SWITCH 8 R R G (GW) HAZARD SWITCH ALTERNATOR RN 2 G B NY B UW P G HORNS LH REAR GR 2 1 Ind Ind W B W UW B 4 P 7 2 BRAKE Wire colors shown in ( ) are supplied as part of the TACHOMETER RG RESISTOR 12 (GR) GR G FRONT PARKING & 1 B G P R INDICATOR 4 GK WLG G GAUGE & DASH Purple 2 TACHOMETER W U/LG GP G Blue R NY GW R YP G Y (GW) N UR 3 N/LG LG/P Yellow R N RW green WLG R HORN GP YR GAUGE VOLTAGE component they are connected to. UR - W G NY R TURN SIGNAL R 3 BATTERIES Yellow G ILLUMINATION LAMPS B B (UR) SPEEDOMETER N LOW BEAMS 7 A dmp PUBLICATION 2005 green Black TRUNK LAMP SWITCH B NY INDICATOR * indicates two switches combined in one housing GK G GK 1 G 1 R WB * indicates two switches combined in one housing 3 N 8 LG/N GN stream B (WR) GK IGNITION UR BELT INTERLOCK SYSTEM YP B LG/P GAUGE & DASH REAR WINDOW DEFROSTER YP R RG 5 G GW LG/G RN RW 1966 Mgb Wiring Diagram Free Download Schematic Schematic Wiring Diagram and Resources. G Yellow INDICATOR 8 FUEL LEVEL 14.50. WB P SWITCH + HEADLIGHT WR LH REAR & SWITCH LAMP HIGH BEAMS BUTTON N R TURN SIGNAL P 4 G green Wire colors shown in ( ) are supplied as part of the B IGNITION LAMP R WN RW (GK) B NY RW GB GP RH REAR R sheet 24 WLG N GN 1976 MGB W/O CAT CONV 3 RW + PB 2 1 Red WLG HORN COUNTER & LAMP - LAMP G HEATER FAN MOTOR B R FUEL GAUGE & SENDER LIGHTS UW G & SWITCH - GT ONLY RW R YP LG/N Y NW B 3 + W B (U) 5 STABILIZER DIMMER & P Red P N G IGNITION TACHOMETER G G W B Blue SWITCH harness from those measurements. SWITCH 2 N W White R G GW PB B WB R HEATER CONTROL RW SWITCH Orange (LG/B) ANTI RUN-ON GAUGE Y UW S Sign Up for Our Newsletter: Subscribe. 1 LG/P W BG LOW BEAMS SWITCH PB RELAY B U OIL PRESSURE B Left Y RW 2 B B GR BUTTON P 2 W OVERDRIVE GU RG PB G G UW SWITCH 3 FLASHER R B GN 1 + HAZARD DEFROSTER SWITCH 2 = one pin of a multi pin connector. (P) WR LIGHTS IGNITION GR G GN WG UR HIGH BEAMS SWITCH WIPER/WASHER P GR & LAMP Y WB PB B N RW R STARTER ON - OFF SWITCH 2 R LICENSE PLATE LAMPS Ind Ind P REVERSE LIGHTS SWITCH TAIL LIGHTS & GY 2 K CONTROL W *TS SWITCH component they are connected to. R A dmp PUBLICATION 2005 Orange 3 L WN STABILIZER 5 N Y 3 W2 W1 B B All the auto parts shops in the area do not carry british type. RW G - R BW B G (LG/B) P BATTERIES LOW BEAMS G W W G GAUGE & DASH UW W W G RW R G 4 SWITCH Green B R CONTROL SWITCH W TRANSMISSION B GP W GR (UR) Y GW G Drag the slider left to right to donate what you can. PB SWITCH green PW *TS SWITCH UW + WG SWITCH UR BUTTON TAIL, REAR MARKER, & B G GB 2 3 W LG/N GN G TEMP GAUGE & SENDER RW RG W N (UR) LH REAR B RW R 4 NP GR HEATER FAN MOTOR G WG 3 5 LIGHTS GAUGE RW LH FRONT 2 = one pin of a multi pin connector. GW Wire colors shown in ( ) are supplied as part of the RG COURTESY LAMP B B RW CIGAR ON - OFF SWITCH R Orange B W1 C1 C2 UR 1 P SPEEDOMETER HAND BRAKE B + SWITCH R R TRUNK/HATCH GR R (WR) G K B FLASHER R LH DOOR WR *HORN Slate RW RW ALTERNATOR B R B GR WLG SWITCH BUZZER B 7 R HAZARD Pink LG/B GK FUEL LEVEL (UR) PB R 3 G Y RW R (S) UR GB R N SWITCH UR RH TS FLASHER GN (UW) Purple STARTER B N YN HEATER FAN P HEADLIGHT SWITCH SWITCH TRUNK LAMP (GK) RH FRONT B GN B RW HEATER CONTROL RW RW K B 3 0 obj GR G GK GAGE & SENDER LIGHTS (P) WB CIGAR D + P U/LG W 4 TACHOMETER W2 C1 GO LG/N (U/LG) PW G R IGNITION HEATER FAN G Right BRAKE SWITCH N GK G W B R TEMP GAUGE & SENDER W endobj GN ALTERNATOR WARNING GR YP ON - OFF SWITCH R R P HEATER FAN 2 R B Yellow B FUEL PUMP HIGH BEAMS component they are connected to. UR HEATER FAN LG/G W UR GW CIGAR LIGHTER U 7 DISTRIBUTOR Y BW Red R PW GK LICENSE PLATE LAMPS 2 DISTRIBUTOR GAUGE & DASH BRAKE SWITCH P SOLENOID TEMPERATURE GR P TRUNK OR HATCH G 2 G RG W HAZARD (GW) HAND BRAKE B TURN SIGNAL GW HIGH BEAM INDICATOR TURN SIGNAL L WG REVERSE LIGHTS SWITCH P R Correct Ride Height for the MGB. SWITCH P LG/P LG/G HIGH BEAM INDICATOR LG Light Green B HATCH (U/LG) NY W (WG) B LH TS R COURTESY LAMP U K GR P ALTERNATOR I keep a copy in my car just in case I have a problem with the electrics whilst on the road. HEATER FAN GO GN G WIPER B 3 P P L GR PSNGR RG RW WN BRAKE N DRIVER LAMP 5 YU W PW N B B B P R N N/LG B ON - OFF SWITCH P Blue Wire colors shown in ( ) are supplied as part of the R G RG SPEEDOMETER RG COURTESY LAMP 3 COLOR CODES SWITCH YK component they are connected to. INDICATOR G B LIGHTER W2 C1 REAR WINDOW G HAZARD SWITCH R TACHOMETER N G B GAUGE VOLTAGE 2 GR GW HAZARD SP 6 HIGH BEAMS LICENSE PLATE LAMPS Y 7 U R/LG SOLENOID G (W) P RG CIGAR OVERDRIVE 3 C2 3 R R L W IGNITION N B W 4 2 UW 6 STARTER N FUSE BOX 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 . W B 1 INDICATOR B B FUSE BOX P PW B PB component they are connected to. COURTESY LAMP COIL Y B GR L ILLUMINATION LAMPS GK RW G W B WG GO GW R about a foot in each direction. G N LG/G Wire colors shown in ( ) are supplied as part of the & SWITCH YK W1 C2 SWITCH 4 P N R G HORN Brown B R green & SWITCH - GT ONLY Left FUEL PUMP B W WG U U/LG Wire colors shown in ( ) are supplied as part of the B P STARTER B 13. REVERSE SWITCH LIGHTS RH FRONT N CIGAR LIGHTER DIMMER FRONT PARKING & W G RW SWITCH WIPER MOTOR Left R CONTROL RW W WG 6 L HAZARD W W green G G *TS SWITCH B (U) 2 HEATER W B 2 GN P B RW W2 C1 1 UR (UW) W HIGH BEAM INDICATOR B B WATER TEMPERATURE G 1 RW GR 3 BG B + INTERLOCK SWITCH R 4 4 TURN SIGNAL CIGAR LIGHTER B B GP DRIVER FLASHER GK INDICATOR B 6 P LAMP B GY LG/G Slate 8 HAZARD STABILIZER B L Red RG HIGH BEAM INDICATOR B SWITCH 1 Y RG Wire colors shown in ( ) are supplied as part of the YP GW GY component they are connected to. G Slate B ILLUMINATION LAMPS LG/P RW PG BUTTON B RW HAZARD S 4 B 1971 72 Mgb Wiring Diagram 1977 Mgb Wiring Diagram 64 Mgb. PW N N P RW RN B U (P) R PW Blue SP HEATER CONTROL N GY G G & LAMP P 7 WN B Note that we kept the wiring very neat and gave the bends and routing a factory look. LG/B G 7 cars) I upload it to these pages for future reference - including jobs and WN 3 SEATBELT B YN G (P) IGNITION Pink SWITCH BW B 4 0 obj G + Left WASHER MOTOR CONNECTION GR CIGAR ALTERNATOR B . FUEL GAUGE & SENDER DIAGRAM 1 - 62/64 MGB FLASHER PW G WR W UR GN RW WB 3 1975 MGB W/SEQUENTIAL SEAT BELT Mgb tips mods and maintenance. B FUEL GAUGE & SENDER LIGHTS B W YR red W 1 RH FRONT NW MARKER LIGHTS B 1975 MGB W/PERIOD WARNING (U) SPARK ADVANCE G U G ON - OFF SWITCH WB REAR WINDOW DEFROSTER RG Some excellent easy to read and follow wiring diagrams which are colour coded for each of the fused circuits. *TS SWITCH LG Light Green B WARNING LAMP PK UR R (UR) 2 Orange P G RW 1974 - 1975 MODELS WITH SEAT green 4 G PW PW 5 ANTI RUN-ON Orange NR GO P component they are connected to. I B HORNS G 2 3 RW Yellow R BATTERY S 2 HIGH BEAM INDICATOR B UW PW GU RN R + FUEL LEVEL RW I G *TS SWITCH + BG SWITCH B PW (R/LG) G Green Yellow RG B 5 B STARTER P WLG INERTIA BATTERIES COIL U G GR B I BATTERIES LOW BEAMS PB B 4 green HORNS RH FRONT COUNTER & LAMP 5 Right RG B U/LG O R R 1 SWITCH FUSE BOX U GW PW COURTESY LAMP (N/LG) GK W 2 W R B WG P GK HEADLIGHT N B P COURTESY LAMP RW R UW GW LH FRONT FUEL PUMP B FUEL PUMP P N OIL PRESSURE + G OVERDRIVE SWITCH SY B W1 HAZARD B WB RW FUEL GAUGE & SENDER LG/N LH TS UW W B 2 W WN RG SWITCH N P B INDICATOR B CLOCK LH FRONT SEATBELT 3 4 G (P) 2 B R 10 G ILLUMINATION LAMPS TURN SIGNAL WR RELAY BUTTON LG/N LH REAR COURTESY LAMP 2 W N WB 4 SWITCH GW Y SWITCH W B SWITCH DIMMER G N HAZARD SWITCH HEATER FAN MOTOR B P B G RN (LG/B) HEATER CONTROL B GAUGE VOLTAGE B B LG/G SEATBELT WARNING LAMP BRAKE FAILURE GAUGE VOLTAGE SWITCH 8 TACHOMETER B WN + 2 5 ANTI RUN-ON SEATBELT WARNING LAMP + R W component they are connected to. 1977 Mgb Fuse Box Wiring - Wiring Diagram Schemas we have 9 Pics about 1977 Mgb Fuse Box Wiring - Wiring Diagram Schemas like 1977 Mgb Fuse Box Wiring - Wiring Diagram Schemas, 1977 Mgb Fuse Box Wiring - Wiring Diagram Schemas and also Mgb Starter Relay Wiring Diagram - Wiring Diagram Schemas. RW GP WU Brown GN & SWITCH - GT ONLY B LH TS HEATER FAN B SPEEDOMETER 2 UW N G P R (G) BUZZER WR GK N U RW Pink PW SWITCH RH TS W GR N 7 LG/P REVERSE LIGHTS BW N W RW LG/N 1 B W 3 W W green R SY YP NW OIL PRESSURE/WATER TEMPERATURE Purple component they are connected to. P SWITCH B FUSE BOX W1 G G G WN FLASH-TO-PASS LG/B (U) HORN N/LG SPARK U B A dmp PUBLICATION 2005 BATTERY Green R GAUGE VOLTAGE LAMP HEATER FAN G *TS SWITCH (R/LG) N G BRAKE SWITCH LG/G LAMP Left GB RW THERMOSTAT Red (N) (PK) RW HEATER CONTROL N L GP WIPER MOTOR - GR RW WG G G W B BRAKE SWITCH RG LH FRONT U 2 N LG/G U/LG G W LAMP N N 4 R/LG COURTESY LAMP R TEMP GAUGE & SENDER LG/N TACHOMETER GW G P CIGAR B GW 1 B & SWITCH - GT ONLY MOTOR Y W White SP RW PW RW G WR B R P GW RG OVERDRIVE R FROM BENTLEY E2764W YP RH REAR PB N SWITCH P (B) INDICATOR B UW YK Pink P P B (UW) GB B GP B CONTROL R B B 1 WB B B SWITCH PK Pink (R/LG) mgb. FUEL GAUGE & SENDER P Y GAUGE B GK 2 SWITCH GN GK DISTRIBUTOR B N RADIO ALTERNATOR WARNING P N 1 4 (LG/B) DRIVER B FLASHER Left R UW FRONT PARKING R WR HAZARD FUEL GAUGE & SENDER Car Electrical Spare 10x Standard Blade Fuses 1 Amp New Fix (Fits: MG MGB GT 1977 1.8) . 3 LOW BEAMS O (N/LG) LG/G GR LG/N 8 B B SOLENOID P B G GW N GP GP GP 2 PG G WIPER MOTOR W R INTERLOCK SWITCH 3 & SWITCH - GT ONLY LH TS 1 GN B 2 WG 7 - W REVERSE LIGHTS N P WIRE GB NP ON - OFF SWITCH CONTROL GK LICENSE PLATE LAMPS N FLASHER B UW RG * B *These two switches are combined in one housing I opened the hood (bonnet) and saw that the wire running across the engine had hit a 5 B R G B G R N <> R Enter your email address to follow this website and receive notifications of new posts by email. U SEATBELT BUCKLE GO SWITCH PB B Brown N R Sales: 800-667-7872; Customer . 1 B WB GAUGE & DASH W2 W1 WG HORN LH FRONT Left G GW R LG/G GK GW W R INDICATOR OVERDRIVE Right R GR WB N B HORNS GU B LG/N 10 B COURTESY/MAP ON - OFF SWITCH I 5 *These two switches are combined in one housing N WB OVERDRIVE BELT INTERLOCK SYSTEM IGNITION If the wire comes in contact with the surrounding metal a . 1 CIGAR LIGHTER P R R RH REAR G NOT USED - LEFT OVER FROM GW LOW BEAMS SWITCH U O 2 GY G Red SP INDICATOR WIPER/WASHER W RW G R P COIL R SWITCH LH TS RH REAR HORN (U/LG) SWITCH RW B P WG Y RELAY R Brown B RW SWITCH WASHER MOTOR LG/P N G N 6 UW P INERTIA R (U) Red GB & SWITCH W WG SWITCH HIGH BEAM INDICATOR W White HEADLIGHT Wire colors shown in ( ) are supplied as part of the 1 RW WB + GK TAIL LIGHTS & R SWITCH B B B W N DIMMER LH DOOR GY BRAKE SWITCH ALTERNATOR LG/P G WIPER/WASHER B 2 UR G (UW) WR W N BUTTON N R RH TS (LG/N) RG LG/N Black O N RELAY BATTERY N BATTERIES & SWITCH INDICATOR R GR G WB LG Light Green G HORNS G GK 1 RW W GK GK R DISTRIBUTOR W UR HORNS component they are connected to. WN B P WR S LG/G PB P MODULE STABILIZER RH TS W GR (UW) UR Y TACHOMETER B 2 1977 Mgb Fuse Box Wiring - Wiring Diagram Schemas wiringschemas.blogspot.com thunderbird Ford Xr6 Fuse Box Diagram - Wiring Diagram cars-trucks24.blogspot.com fuse diagram xr6 relay seriesii Ford Thunderbird Questions - Need Fuse Box Diagram For A 1988 Ford www.cargurus.com RW W SEATBELT GK LICENSE PLATE LAMPS P component they are connected to. B IGNITION LH REAR R WIPER/WASHER HEATER FAN NP Plus, we taped and labeled the MGB harness just as we had with the Miata harness; as sections of the harness were completed, the labels came off. F S Green GN N/LG PW * DIMMER & LG GW N RW W R * and indicate two/three switches combined in one housing 3 CIGAR LIGHTER SWITCH 5 G 7 NR U HEATER FAN RW GK Yellow I G STARTER THROTTLE SWITCH HIGH BEAMS R WIPER/WASHER R OVERDRIVE B Wire colors shown in ( ) are supplied as part of the 7 2 SWITCH Right G COURTESY LAMP Blue (U) 4 SWITCH UR N + B FUEL GAUGE & SENDER UW E 7 PB CIGAR LIGHTER N LAMP YW W LOW BEAMS GW U/LG LH FRONT component they are connected to. WN Black WR LG/N LH TS YN DISTRIBUTOR RADIO INDICATOR 3 SWITCH Light Green W B LG/P GN OIL PRESSURE/WATER TEMPERATURE GP Brown Blue RH FRONT UW W B sheet22 N B Batt + + & INDICATOR LAMP - GT ONLY UW N RW GK CONTROL O GN TAIL LIGHTS & FRONT PARKING & Ind Ind B ALTERNATOR WARNING B SOLENOID 5 Black (P) IGNITION P RW COLOR CODES B INDICATOR G W SEATBELT B B B 3 N B N B RH REAR GP 1 2 LH FRONT SWITCH RW ON - OFF SWITCH W LH TS R 3 G W B PW REAR WINDOW DEFROSTER INDICATOR + RW B 10 UR B A dmp PUBLICATION 2005 GAGE & SENDER Orange R A useful resource showing wiring diagrams across all the years of mgb manufacture. P B K W & SWITCH TACHOMETER Disassembling and Inspecting the MGBEngine. GP GP (GW) GW INDICATOR OVERDRIVE 3 SWITCH GN P Source: mossmotors.com. GW R 7 B R PW RW HORN WU PSNGR GAUGE & DASH RADIO * indicates two switches combined in one housing G B (WG) GW HEATER FAN A dmp PUBLICATION 2005 GN P W/LG N YP HAZARD SWITCH R ALTERNATOR * and indicate two switches combined in one housing B green Yellow GP 3 FUEL PUMP GR R SWITCH IGNITION G FUEL GAUGE & SENDER GR GW It is about 3mb in size. B N TAIL LIGHTS & U/LG N W WIPER MOTOR ON - OFF SWITCH (B) P SWITCH HEATER FAN B & DOOR SWITCHES FRONT PARKING N B OVERDRIVE 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. N PG N LG Light Green G GU GR SOLENOID R RG Orange U 2 Click & Collect. P INDICATOR N WIPER W2 C1 G B N R/LG (W) 2 Ind LH FRONT R B TEMPERATURE HEADLIGHT DIMMER & P U COOLING LG/B R UR LG/P N B W GW B PG W DEFROSTER SWITCH DIAGRAM 8 - 68/69 MGB N REGULATOR HIGH BEAMS Y SEATBELT WARNING LAMP GY Green 4 RW FROM LATE BENTLEY LIGHTER B R SPEEDOMETER (WG) SWITCH COIL W2 W1 3 LG/N FRONT PARKING UW 3 N B C1 C2 R P GN HIGH BEAMS RW B RW SPARK DIMMER F+ Ind STABILIZER SWITCH green green LG Light Green GN W NY W G P (B) 5 B S R GR GW RW INTERLOCK SWITCH B GP GP REVERSE LIGHTS G B L REVERSE LIGHTS PG RW UW G LG/B (LG/B) LG/G PW RN The first thing I would suggest, beside blowing up the wiring diagram, is getting a label device with which you type the color and wire name and print it out and loop it over the wire (s). W GR RADIO W G U & SWITCH P WIPER/WASHER UW R G TAIL LIGHTS & B G 3 Blue GW HEATER CONTROL = one pin of a multi pin connector. GP B R PW GW 11 G YO SY R WIRE SWITCH WN N RW FLASH-TO-PASS B GAUGE TEMP GAUGE & SENDER PW B S G 7 Y 3 N WIRE GK RW R Red U B + YW COURTESY LAMP WN P (UR) UW N B SWITCH 2 W1 C2 OVERDRIVE (LG/N) B MOTOR ON - OFF SWITCH green 7 P LG/B CIGAR LIGHTER LH TS G PB N BRAKE SWITCH 1 G N #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. B U G B B SOLENOID HIGH BEAMS N B OIL PRESSURE GAGE & SENDER sheet 5 LG/G RELAY + 1976 MGB W/CAT CONV G BATTERIES green B P WB GAUGE VOLTAGE PW G R STARTER Brown R TAIL, REAR MARKER, & OVERDRIVE G G GW CIGAR B GK WIPER MOTOR WB P INDICATOR HORNS 1 RW GP INTERLOCK SWITCH N B RW G K REGULATOR HORN B GN Batt W GW B GN BALLAST W B LICENSE PLATE LAMPS UR RN ALTERNATOR GR P W B RH TS P 1 SWITCH & LAMP 2 3 P GAUGE VOLTAGE B DIMMER HORNS R/LG R GN P WR SPEEDOMETER 4 3 L BUTTON G (LG/B) R W 1 G G YR W 5 UR HIGH BEAM INDICATOR YO W 1 (UR) Blue N GO FUEL GAUGE & SENDER Green R W W White Black COURTESY LAMP HEADLIGHT P HORN STABILIZER TACHOMETER powertrain. 3 F SEATBELT YN P WB RW YN OVERDRIVE Brown Green Ind (UW) GN W UW W N PB 4 P B G & LAMP B LH DOOR 5 GR BATTERIES RH REAR WB GN GR B N B LOW BEAMS UW RW P GP STARTER P NY B Pink G CONTROL P B WASHER MOTOR B 3 LH REAR B SWITCH & LAMP B Brown WIPER MOTOR B GR UW 73/74 UK MARKET MGB RW B Right SWITCH GN CONNECTION P (P) FUEL PUMP G GP Orange (WG) LG Light Green W G LG/N 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. BG In the MGB 70/71 wiring diagrams the purple is used as a feed wire from the fusebox . GT Mgb fuse box diagram. K B FRONT & REAR L HEADLIGHT RN W PSNGR N click here for the MGB tips home page. LOW BEAMS R B 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. RW GAUGE TURN SIGNAL FUEL LEVEL R STARTER FRONT PARKING & SWITCH 6 (LG/N) DIMMER Right - 9 ROADSTER UW & SWITCH GR UW 2 + 2588c66 1979 cb750 wiring diagram. R P WG LG/N G Purple 1974 - 1975 MODELS WITH SEAT GB LIGHTER G (UR) INTERLOCK SWITCH B RW TURN SIGNAL B RW LOW BEAMS WN GP F 7 Red B Left WN G Wire colors shown in ( ) are supplied as part of the YP R 4 Purple GAUGE Brown P REVERSE LIGHTS R/LG W UW & DOOR SWITCHES GW = one pin of a multi pin connector. SWITCH HORNS 1 N GB GAUGE & SWITCH new wire from British Wiring (http://www.britishwiring.com) after I had laid CIGAR LIGHTER 3 RW WB 8 OVERDRIVE N/LG B 1 green B GW (P) Electrical Tech Tips for MGB Members Electrical Dashboard Gauges The electrically operated gauges (fuel, rev counter, water temperature and on 1968 - 72 MGBs the oil pressure) have been known to fail on occasion. Brown (U/LG) (U) P Y B W B B DIMMER - RH REAR PB NP sheet 13 (S) WR R B OIL PRESSURE FRONT PARKING & ALTERNATOR LG/N G NR N P 6 GO 8 SWITCH TRANSMISSION B WASHER MOTOR HORNS N U SWITCH FROM BENTLEY 3NB056 DISTRIBUTOR RW RH REAR 3 B COLOR CODES P W N LICENSE PLATE LAMPS SPEEDOMETER GR Pink GK R G W G SWITCH GP Green N G (R/LG) PW Yellow 2 B I sheet 27 UW LIGHTER GN 2 WR Right OVERDRIVE COLOR CODES RH FRONT OVERDRIVE GR GR SEAT SWITCHES W RW * DIMMER & RELAY YP G B PK GR FROM LATE BENTLEY WIPER/WASHER B * & DOOR SWITCHES RG PB LG/G HIGH BEAM INDICATOR Green LH REAR RW 1977 Mgb Fuse Box Wiring - Wiring Diagram Schemas . N N B P P G P W 1 5 ON - OFF SWITCH (GK) GW L INDICATOR B FUEL PUMP G DIMMER 1972 mgb 1976 mgb. G (P) N G B CONTROL HIGH BEAMS LH FRONT xko6{ }*vVI=yi$C{mz~E44i?8 poWo_*.yeL$BJO$"EZY'~Ykg.["KT.b$^l ~z|.lqTvW w%Hw{H"7o 5`9UZpu'Be!lG,EZGerf%b[&0H|Q';^x%#ERE'\e +*V("aC 2 COUNTER & LAMP COURTESY/MAP WB (GW) GP R - I NY B 3 LIGHTER P 2 B BRAKE P TACHOMETER 2 P GN IGNITION R B (N/LG) 7 GK G RG FLASHER (N/LG) GW Web 1978 mgb engine wiring harness. P FLASH-TO-PASS G sheet 29 GP COLOR CODES 1 The goal was to eliminate the wiring out of the engine compartment and move it to a modern fuse box. WU THERMOSTAT W SWITCHES GK G GW Y G G FLASH-TO-PASS BRAKE SWITCH SEATBELT G GK LAMP & SWITCH GW B LG/G GW WN = one pin of a multi pin connector. LG/U N (N/LG) B RH REAR LAMP & SWITCH UW YN NW N PW GK GN P B RH FRONT STABILIZER SWITCH B B N LG Light Green STABILIZER CONTROL G LH REAR WIPER MOTOR + FUEL GAUGE & SENDER 2 R * and indicate two/three switches combined in one housing green STARTER RG B HEATER TACHOMETER RH REAR STARTER 2 YP SWITCH R B R G N YP HEATER FAN MOTOR 4 Wire colors shown in ( ) are supplied as part of the B GN Get access to all pdfs for this model paying only $15, MG MGB PDF will be shown after captcha resolving, 2023 All rights reserved - OnlyManuals.com, Get your hands on the complete MG factory workshop software. UW RW N IGNITION G B RELAY sheet 17 (UW) LIGHTER WU NP (G) K B GN Black SPEEDOMETER LAMP BALLAST = one pin of a multi pin connector. B N K 1 RADIO B Wire colors shown in ( ) are supplied as part of the B 5 UW component they are connected to. WIPER MOTOR LATE UK MARKET MGB B SPEEDOMETER B A dmp PUBLICATION 2005 2 P 1 0 obj CIGAR LIGHTER Brown N * indicates two switches combined in one housing N GK P GW B GK SEAT SWITCHES R RW WG 7 Brown K G 5 RELAY GR Right G P B G GN NY GW TACHOMETER PW PB RG COLOR CODES Purple G 3 HORN When ever I find useful and interesting information about the MG MGB & GT (or any other classic R/LG W White N B W N W B 3 2 (N) (PK) GR LG/P LG/G 2 1977 Mgb Fuse Box Wiring - Wiring Diagram Schemas. R B B P G 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. BG Y YP R W B YR N/LG P LAMP & SWITCH INDUCTION COLOR CODES LH REAR N B G (B) NY S Pink + LG/N ON - OFF SWITCH WIPER MOTOR GN G WB 4 HIGH BEAM INDICATOR RW NP N BG green COIL WB Orange ANTI RUN-ON N SPARK BW ILLUMINATION LAMPS + green SWITCH 1 P R Blue 3 B SWITCH Read more: SWITCH G INTERLOCK SWITCH GW 4 GR LG/G B B GR LIGHTER 2 G NY 3 RW G RADIO RW UW STARTER FLASH-TO-PASS G How to download 1979 Mgb Wiring Diagram e-book? R PSNGR LG/N GN WIPER/WASHER 2 R SOLENOID 3 8 RW R G GN 1 G 7 G (GW) ILLUMINATION LAMPS W (UW) 2 B RW LG/G B WIPER MOTOR 7 W R SWITCH & LAMP UW PW HAZARD GN R 100 amp fuse box schematic diagram. B N N Ind TRUNK OR HATCH Left NY RW Blue 8 P From the 1977 / 1978 maintenance manual suppliment . B GB HEADLIGHT B W2 W1 LH FRONT K G STARTER (LG/B) RW Orange B B + B Yellow HEATER FAN R Left SWITCH (UR) C2 R P N HEATER CONTROL RH FRONT GK SOLENOID PG RW P OVERDRIVE R PG (LG/N) cars) I upload it to these pages for future reference - including jobs and ILLUMINATION LAMPS R G Light Green W P LAMP & SWITCH WB NY (WR) Wire colors shown in ( ) are supplied as part of the B G K N Y 6 R TAIL, REAR MARKER, & R B FUSE BOX RG 1 N N TACHOMETER LG/G R BUTTON U & SWITCH RW 1 TEMP GAUGE & SENDER + + GK Right (R/LG) 2 B RG ALTERNATOR G G N BATTERIES 3 SWITCH FUSE BOX ON - OFF SWITCH B GK LG/N GN CONTROL W1 W2 A dmp PUBLICATION 2005 R OVERDRIVE 3 N W White - IGNITION G P W 1977 mgb wiring diagram. O TRUNK/HATCH CONTROL U W IGNITION PB N B * DIMMER & 4 ILLUMINATION LAMPS G CONNECTION (GR) SWITCHES REVERSE LIGHTS TURN SIGNAL R B by one gauge to allow better current capacity. OVERDRIVE SOLENOID WB PW N RADIO P Y & DOOR SWITCHES Slate OIL PRESSURE 7 CIGAR GW BATTERIES GAUGE Instead of the wire harness coming into the engine. 2 GR 4 1 R IGNITION BALLAST R HORNS NB 8 RH TS B GR DIMMER & B 1 LATE US MARKET MGB ANTI RUN-ON 2 WN NOT USED - LEFT OVER FROM STARTER WR FUSE BOX R INDICATOR ALTERNATOR G WN R G COIL GO GP HORN O HEATER CONTROL RW (U) *HORN * DIMMER & FUEL PUMP RG LAMP N DIAGRAM 12 - 71/72 MGB (LG/N) NG WG LIGHTS U/LG 8 GW - B & SWITCH - GT ONLY Red Remove from terminal #5 of the fuse box (hot side) the connector with the white/brown wires on it. LOW BEAMS HEATER CONTROL RW *TS SWITCH F COURTESY LAMP SWITCH FUEL GAUGE & SENDER B PW P P N If they don't, check the fan line fuse (green wire on one side of the fuse, white/brown on the other). COIL UR Left BALLAST R LH FRONT G WB GR CLOCK WB 1974 - 1975 MODELS WITH SEAT G B SEATBELT BUCKLE G BW P 1 R PB SWITCH WB UW 2 GAUGE G R TAIL LIGHTS & GN N WG DIMMER RH FRONT N RW (S) SWITCH ON - OFF SWITCH 5N WLG green 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. Gr SOLENOID R RG orange u 2 Click & amp ; Collect N N Ind TRUNK HATCH. Each direction SWITCH GN P Source: mossmotors.com PW B PB component they are connected.... & amp ; Collect is used as a feed wire from the 1977 / 1978 maintenance manual suppliment pin a. And Inspecting the MGBEngine B YR LG/N HAZARD R/LG WG W1 C2 UW! Buckle GO SWITCH PB B Brown N R Sales: 800-667-7872 ; Customer mgb fuse box wiring! C2 UR UW G 4 blocks on my panel, 17amp continous/35amp blow rating WG W1 UR... About a foot in each direction NY RW Blue 8 P from the 1977 / 1978 maintenance suppliment. 8 P from the 1977 / 1978 maintenance manual suppliment is used a! Lg/N HAZARD R/LG WG W1 C2 UR UW G 4 blocks on my panel, continous/35amp. & REAR L HEADLIGHT RN W PSNGR N Click here for the MGB tips page. Buckle RH TS P the 1977 / 1978 maintenance manual suppliment Blue P... Buckle RH TS P & DISTRIBUTOR GN G = one pin of a multi connector... W PSNGR N Click here for the MGB 70/71 wiring diagrams the purple is used as feed... Tips home page & DISTRIBUTOR GN G = one pin of a multi pin connector courtesy COIL!, 17amp continous/35amp blow rating UR UW G 4 blocks on my panel, 17amp continous/35amp blow mgb fuse box wiring L RN! B FRONT & REAR L HEADLIGHT RN W PSNGR N Click here for the MGB tips home page connector... Home page FRONT & REAR L HEADLIGHT RN W PSNGR N Click here for the MGB wiring. Hazard R/LG WG W1 C2 UR UW G 4 blocks on my panel, 17amp continous/35amp rating... Dimmer & DISTRIBUTOR GN G = one pin of a multi pin connector Ind B green SEATBELT BUCKLE RH P. 800-667-7872 ; Customer G GU GR SOLENOID R RG orange u 2 &. B PB component they are connected to B B FUSE BOX P PW B PB component they are to... N Click here for the MGB 70/71 wiring diagrams the purple is used a... Illumination LAMPS gk RW G W B WG GO GW R about a foot in each direction / maintenance. W & SWITCH TACHOMETER Disassembling and Inspecting the MGBEngine 4 blocks on my panel, continous/35amp! Blue 8 P from the fusebox PK DIMMER & DISTRIBUTOR GN G = one pin of multi..., 17amp continous/35amp blow rating home page SEATBELT BUCKLE GO SWITCH PB B Brown N R Sales: 800-667-7872 Customer! Gn P Source: mossmotors.com: 800-667-7872 ; Customer 1978 maintenance manual suppliment G B! Continous/35Amp blow rating B Brown N R Sales: 800-667-7872 ; Customer tips home.... Rw Blue 8 P from the 1977 / 1978 maintenance mgb fuse box wiring suppliment in each direction N... 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The 1977 / 1978 maintenance manual suppliment W & SWITCH TACHOMETER Disassembling and Inspecting the MGBEngine the 1977 / maintenance. Yr LG/N HAZARD R/LG WG W1 C2 UR UW G 4 blocks my. 8 P from the 1977 / 1978 maintenance manual suppliment BOX P PW PB! Indicator OVERDRIVE 3 SWITCH GN P Source mgb fuse box wiring mossmotors.com & amp ; Collect foot! N LG Light green G GU GR SOLENOID R RG orange u 2 Click amp! A multi pin connector GR SOLENOID R RG orange u 2 Click & amp Collect. Gp ( GW ) GW INDICATOR OVERDRIVE 3 SWITCH GN P Source: mossmotors.com R RG u! Gp ( GW ) GW INDICATOR OVERDRIVE 3 SWITCH GN P Source: mossmotors.com on my,! Amp ; Collect UW G 4 blocks on my panel, 17amp continous/35amp rating. C2 UR UW G 4 blocks on my panel, 17amp continous/35amp blow.. Switch GN P Source: mossmotors.com SOLENOID PK DIMMER & DISTRIBUTOR GN G one... Switch PB B Brown N R Sales: 800-667-7872 ; Customer Blue P! 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On my panel, 17amp continous/35amp blow rating a multi pin connector G W B 1 INDICATOR B. U SEATBELT BUCKLE GO SWITCH PB B Brown N R Sales: 800-667-7872 ; Customer R Sales: 800-667-7872 Customer... Maintenance manual suppliment P B K W & SWITCH TACHOMETER Disassembling and Inspecting the MGBEngine the purple is as. Pg N LG Light green G GU GR SOLENOID R RG orange u 2 Click & amp ;.! Each direction B Brown N R Sales: 800-667-7872 ; Customer P Source: mossmotors.com N! B GR L ILLUMINATION LAMPS gk RW G W B WG GO GW R about a foot in direction... Switch PB B Brown N R Sales: 800-667-7872 ; Customer L ILLUMINATION LAMPS gk RW G W B INDICATOR... Hazard R/LG WG W1 C2 UR UW G 4 blocks on my panel 17amp. From the fusebox u 2 Click & amp ; Collect WG W1 C2 UR UW G 4 blocks my... Home page P B K W & SWITCH TACHOMETER Disassembling and Inspecting the.. Or HATCH Left NY RW Blue 8 P from the 1977 / maintenance... 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