1962 thunderbird fuse diagram10/4/2023 To address customer concerns, and to cut costs, Ford made a change around 1967 that eliminated the need for heavy duty wiring inside the car and gauges that were capable of handling large amounts of power. Customers didn't care for all the movement, and became concerned when the gauge indicated discharge for long periods of time, such as when idling in heavy traffic. When the battery was fully charged with minimal accessory use, the needle would sit near the center of the gauge, indicating a fully charged battery and an alternator putting out minimal current for electrical accessories. Since it was normal on these cars for the power to fluctuate somewhat depending on engine speed and accessory use, it was not unusual to have the gauge indicate a discharge at idle, then move over to indicate a charging condition once underway. Having all of the power flow through the AMP gauge meant the gauge itself had to be heavy duty, which was more costly to produce. The main area of concern on the 1964 Thunderbirds was the connection at the cowl, where the wiring entered the passenger compartment from the engine bay. Resistance causes heat, which isn't a good thing for electrical wiring. As the cars aged, connections began to corrode and get dirty, and resistance built up. When new, this design wasn't a problem, and effectively allowed drivers to monitor the charging system. A flow of power into the battery moved the needle on the gauge to show a charging condition, and a flow of power from the battery caused the needle to move to the left side of the band, indicating a discharge. In order to accomplish this, Ford ran heavy duty (smaller wire gauge number) wires to and from the gauge, so that all of the car's electricity moved through the gauge, making it register. Perched in the last pod on the right of the T-bird's new "jet age" instrument panel, the gauge advised the driver if the battery was being charged or discharged at any given time, and indicated the degree to which that activity was taking place. The first use of an ammeter (AMP) gauge in the Ford Thunderbird came with the newly-designed 1964 models. Yes, they are actually supposed to do something!įord AMP Gauge History on the Thunderbird Fuse - Located in feed line,- protects automatic headlight dimmer.1967-1971 Ford Thunderbird and 1969-1971 Continental Mark III AMP Gauge Repair Located integral with wiper switch protects wiper motor circuits. Located near fuse block,- protects stop lights. Located near fuse block protects power seat and power seat latch. Located near fuse block protects power window circuits. Located integral with windshield wiper switch protects windshield wiper circuits. Located integral with headlight switch protects headlight circuit. Located integral with headlight switch protects parking lights, license light, tail lights, marker lights, headlight "ON" relay, indicator light feed, and headlight Windshield washer, rear window defroster feed, relay coil feed and speed control Radio, power antenna, back-up and turn signal lights Warning lights, door ajar, seat belt, low fuel, oil pressure, water temperature, dual brake warning, electronic spark control Instrument panel and cluster lights, heater or air conditioner, headlight switch, radio, ash tray, cigar lighters, clock, windshield wipers, PRND21 lightsĪir conditioning clutch, turn signals, back-up lightsĬourtesy lights, glove box, luggage compart-ment,clock feed, console, dome,map, ignition key warning buzzer, seatback latch controlĬircuit breaker: Power seats, power latch, hornsĬigar lighter, instrument panel, electric door lock system
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