This article explains how to troubleshoot lighting system issues on the Kaabo Urban.

Use this article if:

• The headlight is not working
• The taillight is not working
• The brake light is not working
• One turn signal is not working
• All lights stop working
• The light switch appears functional but lights do not operate correctly

Before You Start

Please prepare the following before troubleshooting:

• Your order number
• A clear photo or video of the issue
• A video showing the lighting behaviour
• A photo of the display
• Confirmation of:
  • whether the scooter powers on
  • which lights are working
  • whether the brake light activates
  • whether the turn signals function
  • whether the issue started after:
    • riding
    • charging
    • storage
    • transport
    • rain or water exposure
    • crash or impact
    • modification
    • third-party repair

Important Safety Warnings

• Do not continue riding at night if headlights, brake lights, or turn signals are not functioning correctly.
• Do not work on wiring while the scooter is powered on or charging.
• Do not force connectors together.
• Stop and contact support if you are unsure about any step.

Issue: Headlight Not Working

What This Issue Means

If all other lights function normally but the headlight does not work, possible causes include:

• Loose headlight connector
• Bent or oxidised connector pins
• Faulty display output
• Faulty headlight

Step 1 – Inspect the headlight connector

1. Remove the display cover.
2. Remove the display mounting screws.
3. Locate the connection point between the headlight and display.
4. Check for:
   • loose connectors
   • bent pins
   • oxidation
   • contamination

If loose or dirty connectors are found

Reconnect the connector securely and clean it using electrical contact cleaner.

If the headlight works after reconnecting the connector

The issue was caused by a poor connection.

If the issue remains

Test the display headlight voltage output.

Step 2 – Test headlight voltage output

1. Remove the display cover and display mounting screws.
2. Disconnect the headlight connector.
3. Turn the scooter on.
4. Turn the light switch on.
5. Use a multimeter set to:
   • DC voltage
   • 20V range
6. Measure the voltage output at the display headlight terminal.

If there is no voltage output

The display may be faulty and require replacement.

If voltage output is present but the headlight still does not work

The headlight may require replacement.

Please contact support if required.

Issue: Taillight Not Working

What This Issue Means

If all other lights function normally but the taillight does not work, possible causes include:

• Loose taillight connector
• Bent or oxidised pins
• Faulty lighting control module
• Faulty taillight

Step 1 – Inspect the taillight connector

1. Remove the battery compartment cover using a Phillips screwdriver.
2. Remove the controller box using a 3mm hex wrench.
3. Inspect the taillight connector.
4. Check for:
   • loose wiring
   • bent pins
   • oxidation
   • contamination

If loose or dirty connectors are found

Reconnect the connector securely and clean it using electrical contact cleaner.

If the issue remains

Test the taillight voltage output.

Step 2 – Test taillight voltage output

1. Remove the battery compartment cover and controller box.
2. Turn the light switch on.
3. Use a multimeter set to:
   • DC voltage
   • 20V range
4. Measure the voltage output at the taillight module.

Expected voltage

Normal voltage should be approximately:

• 12V

If there is no voltage output

The lighting control module may require replacement.

If voltage output is present but the taillight still does not work

The taillight may require replacement.

Please contact support if required.

Issue: Brake Light Not Working

What This Issue Means

If the brake function operates normally but the brake light does not work, possible causes include:

• Faulty controller brake signal output
• Wiring fault between controller and lighting module

Step 1 – Test brake signal voltage

1. Remove the battery compartment cover.
2. Remove the controller box.
3. Hold the brake lever.
4. Use a multimeter to measure voltage between:
   • the black wire
   • the purple wire
5. Measure at the connection point between:
   • the controller
   • the lighting control module

If the voltage changes when the brake lever is pressed

The brake signal is functioning normally.

Further inspection of the brake light assembly may be required.

If there is no voltage change

The controller may be faulty and require replacement.

Please contact support.

Issue: Left Turn Signal Not Working

What This Issue Means

If the right turn signal works normally but the left turn signal does not operate, possible causes include:

• Loose left indicator connector
• Bent or oxidised pins
• Faulty turn signal switch
• Faulty display output
• Faulty left turn signal

Step 1 – Inspect the left turn signal connector

1. Remove the display cover and display mounting screws.
2. Inspect the left turn signal and switch connectors.
3. Check for:
   • loose connectors
   • bent pins
   • oxidation
   • contamination

If loose or dirty connectors are found

Reconnect the connector securely and clean it using electrical contact cleaner.

If the issue remains

Test the left turn signal switch and voltage output.

Step 2 – Test the left turn signal switch and voltage output

1. Hold the left turn signal switch.
2. Use the multimeter continuity mode (buzzer mode).
3. Check continuity between:
   • black wire
   • white wire
4. Then use voltage mode to measure the voltage output at the left turn connector.

Expected voltage

The output should fluctuate at approximately:

• 12V

If there is no continuity

The turn signal switch may require replacement.

If there is no voltage output

The display may require replacement.

If continuity and voltage output are normal

The left turn signal assembly may require replacement.

Please contact support if required.

Issue: Right Turn Signal Not Working

What This Issue Means

If the left turn signal works normally but the right turn signal does not operate, possible causes include:

• Loose right indicator connector
• Bent or oxidised pins
• Faulty turn signal switch
• Faulty display output
• Faulty right turn signal

Step 1 – Inspect the right turn signal connector

1. Remove the display cover and display mounting screws.
2. Inspect the right turn signal and switch connectors.
3. Check for:
   • loose connectors
   • bent pins
   • oxidation
   • contamination

If loose or dirty connectors are found

Reconnect the connector securely and clean it using electrical contact cleaner.

If the issue remains

Test the right turn signal switch and voltage output.

Step 2 – Test the right turn signal switch and voltage output

1. Hold the right turn signal switch.
2. Use the multimeter continuity mode (buzzer mode).
3. Check continuity between:
   • black wire
   • white wire
4. Then use voltage mode to measure the voltage output at the right turn connector.

Expected voltage

The output should fluctuate at approximately:

• 12V

If there is no continuity

The turn signal switch may require replacement.

If there is no voltage output

The display may require replacement.

If continuity and voltage output are normal

The right turn signal assembly may require replacement.

Please contact support if required.

Issue: All Lights Not Working

What This Issue Means

If all lighting systems fail simultaneously, possible causes include:

• Main lighting power failure
• Wiring harness fault
• Display fault
• Lighting module fault
• Controller fault

Recommended Action

Because multiple systems may be involved, further diagnosis may be required.

Please contact support with:

• A video showing the lighting behaviour
• Photos of visible wiring
• Photos of any visible damage
• Details of any modifications or repairs
• Details of any water exposure or crash damage

Professional diagnosis may be required.

When To Contact Support

Please contact support if:

• The issue remains after troubleshooting
• The scooter has visible wiring damage
• There is overheating, smoke, or burning smell
• The scooter has water exposure or crash damage
• The scooter was modified or repaired by a third party
• The scooter is unsafe to ride

What To Send Support

Please include:

• Your order number
• A clear video of the lighting issue
• Photos of visible wiring
• Photos of visible connector damage
• A video showing switch behaviour
• Confirmation of:
  • water exposure
  • crash or impact damage
  • modifications
  • third-party repair
• Any troubleshooting steps already completed

Important Safety Notes

• Do not ride at night if headlights, brake lights, or indicators are not functioning correctly.
• Do not continue riding if there is visible wiring damage, overheating, smoke, or burning smell.
• Do not work on wiring while the scooter is powered on or charging.
• Do not force connectors together.