What fuse powers the 4x4 vacuum hub solenoids?

Fuse 23, a 10A fuse in the Fuse Junction Panel on a HOT IN RUN circuit, feeding circuit 294 (W/LB wire) through connector C2-1.

What module controls the 4WD and 2WD vacuum hub solenoids?

The Generic Electronic Module (GEM), through connector pins C3-2 and C3-7, using circuit 605 (R wire) for the 4WD solenoid and circuit 145 (GY/BK wire) for the 2WD solenoid.

How does vacuum reach the hub actuator?

Vacuum comes from the engine harness through a check valve into a vacuum reservoir, then through the 2WD and 4WD vacuum hub solenoids to the actuator, which connects to the front drive system.

What wire colors are used in the 4x4 vacuum hub circuit?

The diagram shows W/LB (circuit 294), R (circuit 605), GY/BK (circuit 145), plus LB, W, BK, R, and PK lines between components.

Home/ Registry/ Ford/ Mustang/ 2005-2014/ “SHELBY GT500”/ Photo supermotors.net/registry/media/689177

Ford 4x4 Vacuum Hub Solenoid & Actuator Diagram - GEM Wiring C11544-B

Wiring diagram for 4WD/2WD vacuum hub solenoids, GEM module, and front drive actuator with color-coded wires

‹ ›

Electrical wiring diagram showing 4WD and 2WD vacuum hub solenoids, fuse junction panel, GEM module, and actuator with color-coded circuits.

AI caption November 2008 · Photo 609 of 4867

This document is a combined vacuum and electrical schematic for a Ford 4x4 vacuum-operated hub engagement system (diagram reference C11544-B). It shows power originating from a HOT IN RUN feed through fuse 23 (10A) at the Fuse Junction Panel via connector C2-1, feeding circuit 294 (W/LB wire) to the 4WD and 2WD vacuum hub solenoids. The Generic Electronic Module (GEM), via connectors C3-2 and C3-7, controls the solenoids through circuit 605 (R wire) for the 4WD vacuum hub solenoid and circuit 145 (GY/BK wire) for the 2WD vacuum hub solenoid, with an LB wire also shown running to the actuator area. On the vacuum side, the diagram traces vacuum supply from the engine harness/source through a check valve to a vacuum reservoir, then to the 2WD and 4WD vacuum hub solenoids, which route vacuum via W, R, BK, and PK lines to the actuator that engages the front drive system. A reader can learn the fuse location and amperage, wire colors, circuit numbers, GEM connector pins, and the vacuum line routing for diagnosing 4x4 hub lock engagement problems.

Is this accurate? Sign in to help verify it.

Frequently asked questions

What fuse powers the 4x4 vacuum hub solenoids?: Fuse 23, a 10A fuse in the Fuse Junction Panel on a HOT IN RUN circuit, feeding circuit 294 (W/LB wire) through connector C2-1.
What module controls the 4WD and 2WD vacuum hub solenoids?: The Generic Electronic Module (GEM), through connector pins C3-2 and C3-7, using circuit 605 (R wire) for the 4WD solenoid and circuit 145 (GY/BK wire) for the 2WD solenoid.
How does vacuum reach the hub actuator?: Vacuum comes from the engine harness through a check valve into a vacuum reservoir, then through the 2WD and 4WD vacuum hub solenoids to the actuator, which connects to the front drive system.
What wire colors are used in the 4x4 vacuum hub circuit?: The diagram shows W/LB (circuit 294), R (circuit 605), GY/BK (circuit 145), plus LB, W, BK, R, and PK lines between components.