Lippert Ground Control 3.0 Four- and Six-Point Controllers & Harness Diagram

Ground Control 3.0 uses different control modules for four-point and six-point fifth-wheel leveling systems. The component reference separates the previous controller part numbers from the current replacements and identifies the jack-sensor harnesses by position.

Original Lippert illustrated components

Each document shows the original factory drawing and part-number key. Use the numbered or lettered positions below to find the matching component.

Lippert four-point and six-point Ground Control controller photographs comparing obsolete and current modules
Ground Control four-point and six-point controllers. Select the image to read the labels at full size.

Lippert control modules — four-point and six-point (PDF, page 4)

Lippert Ground Control harness sheet identifying AD jack sensor cables and AE power and ground supply
Ground Control sensor and power harnesses. Select the image to read the labels at full size.

Lippert Hall Effect jack harnesses (PDF, page 5)

Components and manufacturer part numbers

The callouts follow the indicated Lippert drawing. Numbers not linked to products are included to help identify the part, not to imply individual stock availability.

Illustrated component Lippert number Identification
Legacy 4-point module 304136 Previous four-point controller — obsolete; Lippert specifies 803280
Current 4-point module 803280 OneControl GC Advantage four-point controller
Legacy 6-point module 346005 Previous six-point controller — obsolete; Lippert specifies 803279
Current 6-point module 803279 OneControl GC Advantage six-point controller
Harness AD 305115 Hall Effect right-rear jack sensor harness
Harness AD 306298 Hall Effect left-rear jack sensor harness
Harness AD 307489 Hall Effect right-front jack sensor harness
Harness AD 307490 Hall Effect left-front jack sensor harness
Harness AD 347012 Hall Effect right-middle jack sensor harness
Harness AD 347013 Hall Effect left-middle jack sensor harness
Harness AE 306176 Power and ground supply harness

Before ordering a replacement

Four-point and six-point controllers are separate order numbers; the 803279 six-point unit must not be selected merely because it resembles the four-point unit. The 675817 listing is a complete six-point leveling system, not an individual replacement controller. Match each harness to the correct corner and controller installation.

Lippert CCD-0002690, LCD Components, revised March 6, 2026. Use the full manual for installation, adjustments and safe service; leveling jacks are not supports for working underneath a trailer.

Product photos and available components

Explore the NewRVParts listings pictured below. An entire leveling kit, an individual jack and a replacement control panel are separate products.

Lippert 803279 Ground Control 3.0 six-point controller product listing photoLippert 803279 — Ground Control 3.0 six-point controllerView this NewRVParts product and its photographsLippert 675817 Ground Control 3.0 six-point automatic leveling system product listing photoLippert 675817 — Ground Control 3.0 six-point automatic leveling systemView this NewRVParts product and its photographs

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