What do the wire colors mean on the Intellitronix M9015 voltmeter?

Red = +12 volts (switched power), Black = ground (connect directly to the engine block), Purple = dimmer input (+12 volts to dim the display).

Can I connect the red wire directly to the battery?

No. The instructions state the gauge will always be turned on if wired directly to the battery; use the accessory fuse or ignition switch circuit instead.

How does the dimmer feature work?

When the purple wire receives +12 volts (e.g., from the headlights or parking lights), the LED brightness is reduced to 50% for night driving. If you don't want the dimmer, connect the purple wire to ground.

What is the voltage range of the M9015 voltmeter?

8 to 25.5 volts DC. It does not require a sending unit.

How do I contact Intellitronix for technical support?

Call 440-458-4858, Monday through Friday, 9 AM until 5 PM EST. Address: Intellitronix Corp, 10800 Middle Ave., Bldg. D2, Elyria, Ohio 44035.

Home/ Registry/ Ford/ Bronco/ 1992-1996/ 1994 Ford Bronco/ Photo supermotors.net/registry/media/878045

Intellitronix M9015 LED Digital Voltmeter Wiring Instructions - Wire Colors

Intellitronix M9015 LED digital voltmeter wiring diagram and instructions

‹ ›

Intellitronix M9015 LED digital voltmeter wiring sheet with gauge and pigtail: 8-25.5 VDC, red +12V, black ground to engine block, purple dimmer wire; no sending unit required.

AI caption July 2011 · Photo 59 of 129

This document is the manufacturer's wiring instruction sheet for the Intellitronix Corp LED digital voltmeter, part number M9015, which reads 8–25.5 volts DC. It explains that the gauge does not require a sending unit and provides the three-wire hookup: the red wire goes to a switched +12 volt source (accessory fuse or ignition switch circuit — not directly to the battery, or the gauge will stay on constantly), the black wire is ground and should be connected directly to the engine block, and the purple wire is the dimmer input. Applying +12 volts to the purple wire (e.g., from the headlight or parking light circuit) dims the LED display to 50% brightness for night driving; if the dimmer feature is not wanted, the purple wire should be grounded. The sheet includes a drawing of the round gauge face with a three-digit "VOLTS" display and labeled wire leads. Manufacturer contact information is given: Intellitronix Corp, 10800 Middle Ave., Bldg. D2, Elyria, Ohio 44035, with technical support at 440-458-4858, Monday through Friday, 9 AM to 5 PM EST. The title block identifies the drawing as "Voltmeter Wiring," Revision A, Size A, Sheet 1 of 1. The actual gauge with its red, black, and purple wires is photographed lying on the sheet.

Is this accurate? Sign in to help verify it.

Frequently asked questions

What do the wire colors mean on the Intellitronix M9015 voltmeter?: Red = +12 volts (switched power), Black = ground (connect directly to the engine block), Purple = dimmer input (+12 volts to dim the display).
Can I connect the red wire directly to the battery?: No. The instructions state the gauge will always be turned on if wired directly to the battery; use the accessory fuse or ignition switch circuit instead.
How does the dimmer feature work?: When the purple wire receives +12 volts (e.g., from the headlights or parking lights), the LED brightness is reduced to 50% for night driving. If you don't want the dimmer, connect the purple wire to ground.
What is the voltage range of the M9015 voltmeter?: 8 to 25.5 volts DC. It does not require a sending unit.
How do I contact Intellitronix for technical support?: Call 440-458-4858, Monday through Friday, 9 AM until 5 PM EST. Address: Intellitronix Corp, 10800 Middle Ave., Bldg. D2, Elyria, Ohio 44035.