1989-95 Ford MAF Sensor Connector Pinout Diagram - Wire Colors & Pins A-D
1989-95 Mass Air Flow (MAF) sensor connector pinout identifying terminals A-D as +12V, ground, MAF-RTN, and MAF signal.
This document is a color-coded connector pinout diagram for the 1989-95 Ford Mass Air Flow (MAF) sensor. It shows an oval 4-pin sensor connector viewed face-on, with pins labeled A, B, C, and D from left to right. Each pin is illustrated with a colored wire and its circuit function: Pin A is +12V (shown in red), Pin B is GROUND (shown in black), Pin C is MAF-RTN 9 (the MAF return signal, shown in orange), and Pin D is MAF 50 (the MAF signal output, shown in blue). The caption at the bottom identifies the diagram as applying to 1989-95 Mass Air Flow (MAF) sensors. A reader can use this diagram to identify each terminal of the MAF sensor connector for testing, back-probing, or repairing wiring — for example, to verify power and ground at pins A and B or to measure the sensor signal between pins C and D. The document was uploaded to a 1990 Ford Bronco gallery, and the stated 1989-95 range covers that vehicle. It pairs with a companion document in the same album covering MAF sensor testing procedures.
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Frequently asked questions
- What are the pin assignments on the 1989-95 Ford MAF sensor connector?
- Pin A is +12V, Pin B is GROUND, Pin C is MAF-RTN 9 (MAF return), and Pin D is MAF 50 (MAF signal).
- Which pin on the MAF sensor connector is the signal output?
- Pin D, labeled MAF 50, shown with a blue wire in the diagram.
- Which pin provides power to the MAF sensor?
- Pin A, labeled +12V, shown with a red wire.
- What is the MAF return circuit pin?
- Pin C, labeled MAF-RTN 9, shown with an orange wire.
- What years does this MAF sensor pinout diagram cover?
- The diagram states it applies to 1989-95 Mass Air Flow (MAF) sensors.
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