66 Mustang Wiring Diagrams (Colorized)1 - Clan Mcmuffin

1 85863087a8785863087a8785863087a87rev 02/06/20211873624515362487654321654321I A S FDIMMERSPARESPAREHEATERACCACCLTR/HAZDOM LMPSPARESPARESPARETURN signal &PARKING LIGHTNote:Connect 16to 16A ifTach LIGHT SWITCHC olorization COURTESYLIGHTWINDSHIELDWIPER SWCONNECTORSLIGHTSWITCHGAS GAUGE(DASH UNIT)INSTR LIGHTL DIRECTIONINDICATOROIL PRESSUREGAUGECONSTANTVOLTAGEREGULATORINS TR LIGHTHIGH BEAMINDICATORTRANS SEL INDHORN BUTTONTURN SIGNALSWITCHEMERGENCYWARNINGFLASHER& SWITCHAMMETERINSTRUMENT LTR DIRECTIONINDICATORINSTR LIGHTTEMPERATUREGAUGEIGNITIONSWITCHCIGAR LIGHTERASH TRAY LTHEATERSWITCHHEATER LIGHTR COURTESYLIGHTR FRONTDOOR SWHEATERRESISTORTAILLIGHT-STOP & turn SIGNALR BACKUPLIGHTLUGGAGECOMP LIGHTLICENSEPLATELIGHTGAS GAUGE(TANK UNIT)

2 L BACKUPLIGHTTAILLIGHT -STOP & turn SIGNALL FRONTDOOR SWBEAM SELECTOR SWDIRECTIONALSIGNALPARKINGLIGHTHORNHORNB ATTERYSTARTERRELAYSTARTERALTERNATORCOILD ISTRIBUTORTEMP GAUGE(ENG UNIT)DISTRIBUTOROIL PRESSSWITCHALTERNATORREGULATORHEATERBLOW ERMOTORNEUTRALSAFETYSWITCHBACKUPLIGHTSWI TCHSTOPLIGHTSWITCHFUSEBLOCKDOMELIGHT6 CYL8 CYLTACHOMETERCLOCKRALLY PACKFOG LIGHTCKT BREAKERFOG LIGHTFOG LIGHTTURNSIGNALFLASHER1966 Mustang CIRCUIT DIAGRAM (W/ PREMIUM FUSE BOX AND RELAYS)INSTRUMENT HARNESSMAIN DISCONNECT (GAUGE FEEDS)TAILLIGHTHARNESSFIREWALLHEADLIGHT HARNESSMAINDISCONNECT(HEADLIGHTS)Report Errors or Omissions to WITH FOG LIGHT SWITCH ON, THE DRIVING LIGHTS RELAY WILL SWITCHTHE LIGHTS ON WHEN THE IGNITION IS "LIGHTSARE ON"NOTE.

3 "LIGHTS ARE ON" SHOULD ACTIVATE WHEN THEIGNITION IS OFF AND THE LIGHT SWITCH IS A S FCONDENSERLEFT COURTESYLIGHTWINDSHIELDWIPER SWCONNECTORSLIGHTSWITCHGAS GAUGE(DASH UNIT)INSTR LIGHTL DIRECTIONINDICATOROIL PRESSUREGAUGECONSTANTVOLTAGEREGULATORINS TR LIGHTHIGH BEAMINDICATORTRANS SEL INDHORN BUTTONTURN SIGNALSWITCHEMERGENCYWARNINGFLASHER& SWITCHINSTRUMENT LTAMMETERR DIRECTIONINDICATORINSTR LIGHTTEMPERATUREGAUGEIGNITIONSWITCHCIGAR LIGHTERASH TRAY LTHEATERSWITCHHEATER LIGHTR COURTESYLIGHTR FRONTDOOR SWHEATERRESISTORTAILLIGHT-STOP & turn SIGNALR BACKUPLIGHTLUGGAGECOMP LIGHTLICENSEPLATELIGHTGAS GAUGE(TANK UNIT)

4 L BACKUPLIGHTTAILLIGHT -STOP & turn SIGNALL FRONTDOOR SWBEAM SELECTOR SWLOWBEAMHIGHBEAMLOWBEAMHIGHBEAMDIRECTIO NALSIGNALPARKINGLIGHTHORNHORNTURN signal &PARKING LIGHTBATTERYSTARTERRELAYSTARTERALTERNATO RCOILDISTRIBUTORTEMP GAUGE(ENG UNIT)BREAKERDISTRIBUTOROIL PRESSSWITCHALTERNATORREGULATORHEATERBLOW ERMOTORNEUTRALSAFETYSWITCHBACKUPLIGHTSWI TCHWINDSHIELDWIPERMOTORSTOPLIGHTSWITCHFU SEBLOCKDOMELIGHT6 CYL8 CYLTACHOMETERCLOCKRALLY PACKFOG LIGHTFOG LIGHTTURNSIGNALFLASHERMAIN DISCONNECTS(TOP IS RIGHT AND BOTTOM LEFT)1966 Mustang CIRCUIT DIAGRAM (CLASSIC)16 ANote.

5 Connect 16to 16A ifTach LIGHT SWITCHC olorization Errors or Omissions to 02/05/2022 FOG LIGHTCKT BREAKER359359359359358358358545454542253 5353535454535454545353535354545453532222 2103460210344482401402521181371919450450 4504504504505205201819139131813737262262 1616A91318149037191379137097081919191964 816A195757575757575757535319191919648443 10221162972978840 Note: Connect 16A to 16 ifyou remove tachometer1625195757490490 Colorization SWITCHC olorization switchTurn signalflasherHeadlightharness MainDisconnectTurn signalconnectorGlove compartmentlightHeaterHazard flasherHazard flasherswitchGauge Feed WiringMain DisconnectIgnitionswitchStop LightswitchTail light harness, Blkto tail light, Blk/Red tobackup lights, Yel/Whtto fuel sending Red/Blu wireto neutral switch (autotransmission)

6 Instrument clusterLightSwitchOne relay is for switchedfuse ckts, the other is forheadlightsSwitched/fused Accessory (white)Switched accessory. Conn toradio, backup switch, seat beltwarning switchPink wire connect to red/grnat ignition switch OR to blackwire on Rally Pack Red/Grn toPnk OR to Red wire onRally Pack TachDash lights, tach & clock light,radio light-fed from Light Swdimmer through fuse panelCigarlighterBlu/Red femaleconnects to TransSel Frontdoor courtesylight & switchRight Front doorcourtesy light &switchBlk/Blu to rear seatCourtesy lightsBackup sw(blk/red)

7 Grn/Yel to Consolecompartment lgtBlk/Blu to ConsoleCourtesy lgtRight under dashCourtesy lightLeft under dashCourtesy light66 Mustang Harness with Premium Fuse Box & power fromhot side of solenoidPower from IgnitionSwitch when in Onor Acc positionFrom Light Sw1966 Mustang FUSE PANEL