OEM-style, technician-ready specifications and procedures for the HA3198 relay power & control harness with the One-Button feature used on Dodge Voyager (RU). Includes required boards/labels, relay map, wire colors, fusing, limit-switch pinouts, connector cautions, and assembly notes.
Symptoms Covered
One-button command inoperative or intermittent
Ramp not moving (IN/OUT) or stalls mid-travel
Kneel won’t raise/lower with one-button
LEDs on the in-vehicle panel not behaving as expected
BTSI/Power indication absent on LED panel
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