Ford Truck Technical Drawings and Schematics - Section H - Wiring - 1) the headlamp switches on all 1970 ford vans (except "w" models) rent two fundamental circuit breakers, one 12-amp for the headlight circuit and one 15-amp for auxiliary circuits. Connections to any point inside the circuits managed through the headlamp transfer can be on the auxiliary circuit breaker, besides connections to the #12 circuit (headlamp hello-beam, inexperienced wire/black stripe), the #13 circuit (headlamp low-beam, crimson cord/black stripe) and the #15 circuit (feed cord to the the dimmer transfer, crimson twine/yellow stripe. Connections to the 12-thirteen or 15 circuits (headlamp bulb circuits) must be avoided.
If the overall load on either headlamp circuit breaker exceeds the breaker score, the headlamps or taillamps will cycle on and rancid indicating the overload. If this takes place, a portion of the delivered lights need to be stressed out through a relay, feeding the relay coil from the headlamp switch.
Lights managed by stop lamp transfer and turn sign indicator f100 via f350 trucks are equipped with a mechanical plunger forestall lamp transfer that is mounted on the brake pedal arm. This switch is designed for optimum loads generally less than the fuses or circuit breaker within the circuit, but sufficient for ordinary stop lamp loads. The most load is 12.Five amps and under no circumstances are masses in extra of this price permissible.
The feed from added lighting fixtures to be controlled with the aid of the headlamp transfer must be terminated in a male bullet connector and be related to the female bullet take-out (brown twine -- 285 circuit) at the left-hand side of the device panel harness (near the emergency brake). If the car has roof marker lights, this bullet could be occupied via the feed from the roof wires. In this case fabricate a "y" jumper to allow each connections to the unmarried connector.
Please read: most of the wiring diagrams posted on this page are scans of original ford diagrams, not aftermarket reproductions. Those had been scanned and published as very big files, to preserve their readability. The 1969 diagrams and all others marked with a crimson asterisk (*) were despatched to via 1ec5f5ec77c51a968271b2ca9862907d from diverse sources, so their exceptional and/or size might not be as right or as targeted, but i nonetheless gratefully acknowledge those who took the time to ahead them for posting. Eventually all diagrams posted right here can be hello-resolution for less complicated studying.