B GP W + UW FROM BENTLEY E2766W 2 RW UW P B WG Y G LAMP G FLASHER (LG/B) N CONTROL TRANSMISSION A dmp PUBLICATION 2005 GAUGE & DASH ALTERNATOR WARNING SPEEDOMETER GW 1 R FRONT PARKING Brown *HORN TACHOMETER SOLENOID HEATER FAN GN RH REAR (UW) green ON - OFF SWITCH B (LG/N) ROADSTER B GT LH REAR FRONT PARKING & 1 FLASHER COLOR CODES G B UR 4 P R/LG P (GR) B P - CONNECTION 1 (P) SWITCH HEATER CONTROL SWITCH WN TACHOMETER Green GR B LG Light Green B Orange P G ILLUMINATION LAMPS GW 6 HEATER FAN MOTOR B R B SWITCH (UR) B W LAMP LOW BEAMS GR 4 R B B + WN Left COIL LH REAR TACHOMETER RG WB 2 7 WU GB GW component they are connected to. RG HORNS LAMP & SWITCH R N 4 LIGHTER B 2 B W2 C1 HAZARD LG/G W P P LAMP N G * and indicate two/three switches combined in one housing CLOCK FUEL LEVEL G My radio has quit and I am sure it is a fuse. P 5 Black FLASH-TO-PASS N/LG RW HEATER CONTROL RW 2 HIGH BEAM INDICATOR W W2 C1 YR (P) B UR WIPER MOTOR 1 Ind RG LG/G B WR Right Yellow 6 RADIO W HEATER CONTROL RW Red HEATER CONTROL RW THERMOSTAT N SOLENOID G R LIGHTER (GW) B (UR) 5 (U/LG) GN GP GN N/LG RG WASHER MOTOR GAUGE & DASH - TRANSMISSION PG R N 1 HAZARD WB G BRAKE 2 TACHOMETER B N RH TS N INDICATOR GAUGE VOLTAGE 2 INTERLOCK SWITCH SWITCH W2 C1 Slate W REVERSE LIGHTS N/LG B SWITCH LIGHTS LH REAR Ind GR HEATER CONTROL RW N B SPEEDOMETER RH TS GN RW Yellow Y RW FUEL PUMP G B GP OVERDRIVE GK B - S 4 K WB The insulation around the wiring tends to chafe and wear through repeated shifting. B UW SY B G LAMP 6 R TEMP GAUGE & SENDER P 5 3 B G P GAUGE & DASH 6 LG/P ON - OFF SWITCH SWITCH N GP OIL PRESSURE *These two switches are combined in one housing BRAKE FAILURE LH REAR 7 HEADLIGHT R CONNECTION RW LOW BEAMS Source: www.britishwiring.com. GP R U/LG DIAGRAM 5 - 68/70 MGB Left IGNITION B RW GN INDICATOR YN BATTERIES BUTTON G UW (R/LG) G (UW) + N RW HEATER FAN MOTOR W G R HEATER FAN B B GN 3 FROM BENTLEY E3211W G N B * LOW BEAMS SWITCH W R N TURN SIGNAL HAZARD OVERDRIVE SIDE MARKERS UW MARKER LIGHTS DIAGRAM 6 - 70/71 MGB N HORNS SWITCH 5 RG G ON - OFF SWITCH 2 S But there are over 100 fuses. TRANSMISSION G N TEMPERATURE WLG PB Right SY A dmp PUBLICATION 2005 HEADLIGHT SWITCH LICENSE PLATE LAMPS GB 2 GW G SOLENOID LICENSE PLATE LAMPS Yellow GR W GP PW GP ON - OFF SWITCH ILLUMINATION LAMPS R *These three switches are combined in one housing W 3 INERTIA R FLASH-TO-PASS component they are connected to. B GN N P R W R (N) (PK) GW C1 C2 Pull the alternator plug and see if the draw disappears. Blue RADIO BATTERIES R O FLASHER COURTESY LAMP ON - OFF SWITCH OVERDRIVE RW IGNITION G N S R SEATBELT WARNING LAMP HEATER FAN N (UW) B N RADIO 2 mods I do on my own MGB. hope you find them useful. + R W 1 B R Y SPEEDOMETER LH FRONT Left BRAKE SWITCH CONTROL C1 C2 HORN (LG/N) G 6 (G) PW WB B sheet 10 LG/P R OVERDRIVE CIGAR LIGHTER *TS SWITCH R G GP BW LIGHTER STARTER RG W 2588c66 1979 cb750 wiring diagram. COURTESY LAMP R K R Slate LH REAR RW B R FUEL LEVEL B DISTRIBUTOR N WARNING FROM LATE BENTLEY W WG & DOOR SWITCHES R Black SWITCH 8 P SWITCH GR G Left GK Slate SWITCH B B YG B STABILIZER R CONTROL B GR R SWITCH HORNS G Roadster B G ALTERNATOR GP IGNITION RW DIMMER REVERSE LIGHTS (WR) B DRIVER GB P B B RG LAMP * DIMMER & FRONT PARKING & & TEST SWITCH R N RW OVERDRIVE GK R GN HORN R N B WN 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. B G PB B COLOR CODES ALTERNATOR WARNING B LICENSE PLATE LAMPS R B B N C1 W1 LG/P LIGHTS WB R/LG 1 B 1 GN 3 (GW) RG B B RG CONTROL LG/B GN R B TAIL, REAR MARKER, & I SEATBELT PW W Y 1 G RW N B S STARTER B B R RW RH FRONT HEATER FAN MOTOR Left component they are connected to. Since the scratch-built harness also had fused circuits, we used another MGB fuse box (from a newer MGB). P RW LICENSE PLATE LAMPS SWITCH TAIL LIGHTS & GR GW B 1 LG/B R B GP RW N LG/P LH TS 5 WB FUSE BOX SPEEDOMETER FUEL LEVEL UR P4p7X'=:I9Txp>3e5g#Y#Y@x^p*q% (lYYG BIU7dV Y. PB Y Green O NP P GN P N C1 C2 N GR LH REAR GN DIMMER I B (R/LG) RW B GR ON - OFF SWITCH RH REAR N REAR WINDOW DEFROSTER HIGH BEAMS I TEMPERATURE LIGHTER B (B) P B & SWITCH NY B U W COIL GEARBOX SWITCH GR R INDICATOR B R/LG HEATER FAN W1 C2 W White R FROM LATE BENTLEY B COLOR CODES 3 - G Black YP HEATER CONTROL GW G GK P B B COIL PW COIL GEARBOX SWITCH COURTESY LAMP PG + B INTERLOCK SWITCH G B R 8 SWITCH W P B PB SWITCH GAUGE VOLTAGE 2 R R W U Orange Brown G 1 G CONNECTION + B INDICATOR GN LG/N R 6 INERTIA UR W B GR VALVE & SWITCH STABILIZER W UR (S) YN B N GP PW SPARK P GK Black B PK SWITCH GW Y P STABILIZER HIGH BEAM INDICATOR N Right U U N LH REAR R Pink *TS SWITCH G Yellow 1977 Mgb Fuse Box Wiring - Wiring Diagram Schemas wiringschemas.blogspot.com. HAZARD SWITCH N 2 N B GW N N RG PB WN RADIO WR STABILIZER green Slate DISTRIBUTOR green CIGAR LIGHTER CLOCK SWITCH N & TEST SWITCH WN B U/LG component they are connected to. - G 3 B TRUNK/HATCH B LG/B P B 1 SEATBELT R G K OIL PRESSURE GAUGE VOLTAGE GN BATTERIES RG B CIGAR THERMOSTAT Source: mossmotors.com. UW 1 RH REAR PW GO W green LG Light Green - SPEEDOMETER (GR) 6 LG/N SWITCH REVERSE LIGHTS (UW) STABILIZER 3 RW OIL PRESSURE SWITCH B GR - HAZARD R G PG WLG Yellow RADIO P LICENSE PLATE LAMPS R 3 R 12 1972 mgb 1976 mgb. WB WIRE GK W N Blue TURN SIGNAL Purple PK B B RG P P WIPER/WASHER 1 = one pin of a multi pin connector. N HAZARD CIGAR UR P W RW I R R GK RW UR G R GR R (UR) 7 MODULE G Purple 16 Pics about 1977 Mgb Fuse Box Wiring - New Fuse And Relay Box Location Before I Go : Mgb Coil Wiring Diagram - Wiring Diagram, 1977 Mgb Fuse Box Wiring - Wiring Diagram Schemas and also 10A fuse, to small for fuse box, but used on in line systems. GN 6 WN R SWITCH SY (R/LG) (WG) R WIPER CIGAR (UR) 2 N W R/LG WASHER MOTOR N P B B R G G B UR N B B G * TAIL LIGHTS & B Pink GR W2 C1 B L HAZARD G P GAUGE VOLTAGE BATTERY W N & SWITCH - GT ONLY (P) LIGHTER LG/G HIGH BEAMS P B P Green B N B GK UR G W GAUGE - OVERDRIVE P Red Orange Orange 4 PB P LAMP & SWITCH SWITCH 6 B (UW) W P LIGHTER NY GR RW COURTESY LAMP 1975 MGB W/SEQUENTIAL SEAT BELT COIL R N YN NW 4 R WB G the coating off the wire, hit the starter block, and started burning into my wiring N/LG PW (U) SWITCH R TURN SIGNAL Blue SWITCH LAMP ON - OFF SWITCH P SWITCH SWITCH 2 2 R G B G W GAUGE & DASH FUEL PUMP Green R P YR B U/LG P FRONT PARKING & 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 WB STABILIZER GN R Note that we kept the wiring very neat and gave the bends and routing a factory look. CONTROL STABILIZER LAMP & DOOR SWITCHES SWITCH G PW G COLOR CODES FRONT PARKING OVERDRIVE GN PG RW N P P green GR U/LG on donations to keep it going. FUSE BOX B GN G OVERDRIVE G Right CIGAR LIGHTER N U UR RG R N/LG LAMP BRAKE FAILURE N ILLUMINATION LAMPS R P BATTERIES GW 7 (R/LG) LOW BEAMS PW P STABILIZER RW R Batt + + P GB 3 N Wire colors shown in ( ) are supplied as part of the WIPER/WASHER (G) RELAY WARNING LAMP 1 SEATBELT P B + . G GK WN PW REAR WINDOW DEFROST + B+ WLG RW B BATTERIES PW HAZARD WLG TEMPERATURE G G (N/LG) PB HEATER FAN HEADLIGHT 2 INTERLOCK SWITCH FUEL LEVEL G N P R GP W W B G RELAY R sheet 21 (GW) FUSE BOX wanted the connection to the new fuse box under the dash, and built the wiring (B) LICENSE PLATE LAMPS B INDICATOR G RW PW R G RW LOW BEAMS WB NP G DISTRIBUTOR P W B 1 N RN 4 UW PB PK *TS SWITCH RW RW R PW N B PW FLASHER LG Light Green HIGH BEAM INDICATOR B WR 4 R B 1 (GW) LG/B 3 & TEST SWITCH green Orange WIPER MOTOR PW I ALTERNATOR P 1 STARTER WR BATTERIES P B LG/G green N GP LAMP green UR GP P UW (UW) 3 WG G FLASHER STARTER INDICATOR TRANSMISSION STARTER SOLENOID WIPER/WASHER 3 B BRAKE B 5 NY SWITCH G REVERSE LIGHTS P GP SWITCH (LG/B) 7 R NR Pink PB B W 6 IGNITION FUEL PUMP GP RW R RW B (GR) & DOOR SWITCHES LG/O R G LG/N FUSE BOX TURN SIGNAL RW 1964-1978 MGB Electrical Wiring Diagrams PDF Updated: April 2023. G RW SIDE MARKERS N UW GB B P HIGH BEAMS RELAY WB K + W W YR G green L * DIMMER & 4 NW OIL PRESSURE PB RW NR GAUGE VOLTAGE RH REAR G Brown Red B TRANSMISSION DISTRIBUTOR Purple W White GR COUNTER & LAMP W PW 5 PW G LH TS Y Explore interactive fuse box and relay diagrams for the MG MGB. 3 LG/N W 2 LAMP & SWITCH B G + P STARTER (LG/N) WR N B FUEL GAUGE & SENDER B Left FRONT PARKING & R sheet 24 TURN SIGNAL RW OVERDRIVE ALTERNATOR WARNING G RW REAR WINDOW DEFROSTER, SWITCH GR 3 2 G * RH REAR RW B TURN SIGNAL HIGH BEAMS B Brown GT G G PB R W B RG LIGHTS GAUGE 1 B+ N ILLUMINATION LAMPS B U N WB ALTERNATOR P B 2 PW INDICATOR YR GK N N G W COLOR CODES GW TEMP GN LG/G Left B P BRAKE B W green N GK 2 W OVERDRIVE B RADIO (GW) SWITCH NY RW 2 W Red B RW RH FRONT RW W1 W2 WR + G 1 Right R W TRANSMISSION green RW N UW RW Rubber Bumper #MGB - check you have the correct coil? W P UW UW (LG/B) PW green UW FUEL GAUGE & SENDER W2 W1 R ILLUMINATION LAMPS GAUGE & DASH HAZARD FUEL PUMP RELAY N U W HAZARD SWITCH RW 3 FLASH-TO-PASS 3 GAUGE VOLTAGE LG/G N UR PG FUSE BOX WB GR Slate W2 C1 R CONTROL P B Blue FUEL GAUGE & SENDER ILLUMINATION LAMPS ILLUMINATION LAMPS WG 3 5 1 STABILIZER P & SWITCH R RW Slate GW P - R GY 4 2 WASHER MOTOR P (LG/N) 1 + R GU RG BATTERIES ILLUMINATION LAMPS GN UW 1 G WN B U/LG R YW P RH REAR RW Purple FUEL LEVEL MARKER LIGHTS R B B N U (N) (PK) G BRAKE SWITCH RH FRONT FUEL GAUGE & SENDER B RW GW IGNITION RH FRONT RW SWITCH 3 G WLG G N RW B Brown & SWITCH OVERDRIVE B SWITCH B W GW ILLUMINATION LAMPS GR G G FRONT PARKING PSNGR IGNITION LG/G R & SWITCH - GT ONLY SEATBELT WARNING LAMP WB COIL 1 ALTERNATOR G R (UR) G R N TEMPERATURE L HEATER FAN GEARBOX SWITCH CIGAR DIMMER LH FRONT FUEL GAUGE & SENDER 2 RN GP RW YP W W B UR OVERDRIVE SOLENOID P LAMP & SWITCH BRAKE FAILURE SWITCHES WG WB Web unique wiring diagram 2007 club car precedent electrical circuit. GW 1 6 Right W PG RG 1 G GR G (P) G 4 OVERDRIVE harness. 3 R W ILLUMINATION LAMPS 3 B GN R B G P LG/B (S) W 7 FROM HAYNES FUEL LEVEL NP B 2 B B FUSE BOX * indicates two switches combined in one housing