Electric Scooter RGB Lights Not Working? Step-by-Step Troubleshooting Guide

RGB ambient lighting is a popular feature on modern electric scooters, adding both style and visibility.
If your electric scooter RGB lights are not working, showing incorrect colors, or cannot change lighting modes, the issue is usually related to the dual function switch, RGB remote, wiring harness, or RGB controller, not the main electrical system.

This technical guide explains how to troubleshoot electric scooter RGB ambient light problems step by step, based on real after-sales diagnostic procedures.
⚠️ This guide applies only to RGB ambient lights (side lights, deck lights, decorative lighting) and does NOT include headlights, brake lights, or turn signals.

Follow the steps in order to quickly identify whether the problem is caused by the switch, remote, RGB controller, wiring, or LED light strips.

Step 1: Check the Dual Function Switch (Most Common Cause)

If all RGB lights are not turning on, first check the dual function switch on your scooter.

The top button function varies by model, but it is critical for RGB power control.

Dual Function Switch Button Functions by Model

How to Judge the Switch Condition

• ❌ If the top button does NOT respond, the dual function switch is likely faulty
  👉 Replace the dual function switch

• ✅ If the top button works normally, the switch is functioning
  👉 Continue to Step 2

Step 2: Test the RGB Remote Control

After confirming the switch works:

1. Turn on the RGB lights using the switch

2. Use the RGB remote

3. Press the “Rainbow” button

Observe carefully:

• Each time you press a remote button, the red indicator light on the remote should turn on

Results Interpretation

• ❌ No red light → Remote is faulty or has no power

• ✅ Red light appears but RGB lights do not change → Continue troubleshooting

👉 This step confirms whether the RGB remote itself is functional.

Step 3: Try the RGB Control App (ZENGGE)

If the remote does not work properly, try controlling the lights using the official app.

📱 App Name: ZENGGE

• Try changing colors and lighting modes

Results Interpretation

• ❌ App cannot control lights → Proceed to wiring inspection

• ✅ App works → Remote issue confirmed

Step 4: Inspect the RGB Wiring Harness (1-to-3 / 1-to-4 / 1-to-2)

If both remote and app cannot control the lights, the issue is likely related to wiring or RGB power components.

1. Disconnect all outputs of the 1-to-3 harness
   (Some models or version may use 1-to-4 or 1-to-2; procedure is the same)

2. Connect one RGB light strip at a time to each output

3. Observe which strips turn on

If ALL RGB Light Strips Do NOT Turn On

Proceed to voltage testing.

🎥 Reference video:
👉 https://www.youtube.com/watch?v=MKTfPeve9fA

Step 5: Measure Voltage of the RGB Step-Down Converter

Use a multimeter to measure the RGB silver step-down converter.

What to Measure

• Input voltage → Any voltage present = normal input

• Output voltage → Approximately 5V

• Voltage at the 1-to-3 harness → Approximately 5V

Results Interpretation

• ✅ Input & output voltage normal → Replace all RGB light strips

• ❌ Output voltage abnormal → Replace:

  • RGB step-down converter

  • 1-to-3 wiring harness

📧 If unsure, send your test video to: service@haloknights.com

🎥 Reference video:
👉 https://www.youtube.com/watch?v=L7xr9rdml5g

When Only Some RGB Light Segments Turn On

Troubleshooting Steps

1. Disconnect all RGB strips

2. Connect each strip individually to the harness

Results Interpretation

• ❌ All strips partially light up
  👉 Replace the 1-to-3 wiring harness

• ❌ Only one strip partially lights up
  👉 Replace that RGB light strip
  👉 Recommended: replace the harness at the same time

🎥 Reference video:
👉 https://www.youtube.com/watch?v=MKTfPeve9fA

Single RGB Light Not Working

1. Check the connector of the non-working RGB strip

2. Replug the connector firmly

3. Swap the strip with a known working line

Results Interpretation

• Still not working → Replace the RGB light strip

• Works after swapping → Replace the wiring harness

RGB Lights Show White Only and Cannot Change Color

1. Use the RGB remote to change modes

2. If unresolved:

   • Replace the white-only RGB strip

   • Replace the 1-to-3 wiring harness

RGB Lights Show Different Colors but Cannot Change Modes

1. Try switching modes using the RGB remote

2. If unresolved:

   • Replace the 1-to-3 wiring harness first

   • If still unresolved, replace the affected RGB light strip

When to Contact After-Sales Support

If the issue persists after all steps:

📧 service@haloknights.com

Please include:

• A clear video

• App test results

• Voltage measurements (if performed)