Simson GPS Speedometer Case

🛠️ Speedometer Wiring Instructions

1. Ground (Black)

The black ground wire from the speedometer connector is extended with an additional cable. This extension splits into:

• a cable to the button
• another cable to the ground point on the frame

2. Blue Cable

The blue cable from the speedometer connector is directly connected to the button.
👉 Note: See images for the exact cable routing.

3. Plus (Red & Yellow)

• The red and yellow cables from the speedometer connector are soldered together to obtain a common ignition plus.
• A crimp connector is attached to this cable, which leads to the ignition switch (terminal 15/51) of the moped.
• The original plus cable is then reconnected to the crimp connector.
  👉 Note: Observe the illustrated representation.

⚠️ Important:
Before crimping the cables, first run all cables through the speedometer! Or use connectors. The GPS antenna can also be connected beforehand.

🔧 Assembly Instructions

• When inserting the speedometer into the housing, ensure that the rubber seal sits cleanly and is correctly covered.
• When 3D printing the housing, the Z-seam position should be considered.
• The button fits very tightly – if necessary, press down with something pointed and secure it with a hot glue gun.
• The housing fits tightly onto the speedometer – carefully check all connections before installation before the speedometer is finally pushed in.

📏 Recommended Cable Lengths

              Cable Type                        Length (approx.)

• Red (Plus):                  approx. 910 mm
• Black (Ground):       approx. 300 mm
• Button Wiring:     approx. 80 mm

💡 Tip: It is better to make the cables a little longer – cables that are too short can be difficult to correct later.

📋 Required Components

• 1× Mini push button (6×6×9 mm)
• 1× M8 screw (SW13)
• 1× Ring eyelet for ground connection
• 1× Crimp connector (male + female)
• 2× Cable extensions (for plus and ground)