This article explains how to troubleshoot common light control system issues on the Kaabo Mantis 10 dual-drive model. 

Use this article if your scooter has:

• Brake lights staying on
• Brake lights not flashing correctly
• Horn not working
• Headlights not working
• Rear tail lights not working
• Front spot lights not working
• Turn signals not flashing
• Side light strips not working
• Lights operating while the display is turned off

Before You Start

Please prepare the following:

• Your order number
• A photo/video of the issue
• A photo of the display
• A video showing the light issue
• Confirmation whether:
  • the scooter powers on
  • the lights function correctly
  • the brake lights respond correctly
  • the horn works
• Details about whether the issue started after:
  • rain or water exposure
  • crash or impact
  • modification
  • display replacement
  • third-party repair

If there is visible damage, please also prepare clear photos.

Safety Warnings

• Do not continue riding if there is visible wiring damage, smoke, burning smell, overheating, or water exposure.
• Do not work on wiring while the scooter is powered on unless specifically required for testing.
• Do not force connectors together.
• Stop and contact support if unsure.

Brake Light Stays On Without Pressing the Brake

This issue may be caused by:

• A left brake lever electronic cut-off sensor fault
• A right brake lever electronic cut-off sensor fault

Step 1 – Check the Right Brake Lever Sensor

Leave the display powered on. 

Disconnect the waterproof connector for the right brake lever electronic cut-off sensor from the main line.

If the brake light turns off

The right brake lever may be faulty.

Please contact support with:

• A video showing the test
• Photos of the right brake lever connector

If the brake light stays on

Reconnect the right brake connector and continue to Step 2.

Step 2 – Check the Left Brake Lever Sensor

Disconnect the waterproof connector for the left brake lever electronic cut-off sensor from the main line. 

If the brake light turns off

The left brake lever may be faulty.

Please contact support with:

• A video showing the test
• Photos of the left brake lever connector

If the brake light still stays on

Further electrical inspection may be required.

Please contact support with:

• A video showing the issue
• Photos of the brake lever wiring

Right Brake Works but Left Brake Does Not Flash the Brake Light

This issue may be caused by:

• Loose wiring
• Incorrect wiring connection
• Left brake lever fault
• Left brake main line fault

Step 1 – Check for a Brake Warning Indicator

With the display powered on, press and hold the left brake lever. 

Check whether an exclamation mark appears on the display.

If no exclamation mark appears

Open the battery compartment cover and locate the XHB8 connector between the left brake main line and the junction box.

Inspect the white wire for:

• Loose wiring
• Incorrect wiring
• Unplugged terminals

If loose or incorrect wiring is found

Reconnect the wiring securely and test again.

If the wiring appears normal

Continue to Step 2.

If the exclamation mark appears normally

Continue to Step 2.

Step 2 – Check the Left Brake Lever

If the wiring appears normal but the issue remains, the left brake lever may require further inspection. 

Please contact support with:

• A video showing the issue
• Photos of the brake lever wiring

Step 3 – Check the Left Brake Main Line

If the issue still remains, the left brake main line may have an internal wiring fault. 

Please contact support with:

• Photos of the XHB8 connector
• A video showing the issue

Left Brake Works but Right Brake Does Not Flash the Brake Light

This issue may be caused by:

• Loose wiring
• Incorrect wiring connection
• Right brake lever fault
• Right brake main line fault

Step 1 – Check for a Brake Warning Indicator

With the display powered on, press and hold the right brake lever. 

Check whether an exclamation mark appears on the display.

If no exclamation mark appears

Open the battery compartment cover and locate the XHB8 connector between the right brake main line and the junction box.

Inspect the grey wire for:

• Loose wiring
• Incorrect wiring
• Unplugged terminals

If loose or incorrect wiring is found

Reconnect the wiring securely and test again.

If the wiring appears normal

Continue to Step 2.

If the exclamation mark appears normally

Continue to Step 2.

Step 2 – Check the Right Brake Lever

If the wiring appears normal but the issue remains, the right brake lever may require further inspection. 

Please contact support with:

• A video showing the issue
• Photos of the brake lever wiring

Step 3 – Check the Right Brake Main Line

If the issue still remains, the right brake main line may have an internal wiring fault. 

Please contact support with:

• Photos of the XHB8 connector
• A video showing the issue

Horn Does Not Work

This issue may be caused by:

• Horn wiring faults
• Multifunction switch wiring faults
• Horn faults
• Junction box faults
• Multifunction switch faults

Step 1 – Check the Horn Wiring

Open the battery compartment cover and locate the XHB3 connector between the multifunction switch main line and the junction box. 

Inspect the grey wire for:

• Loose wiring
• Incorrect wiring position
• Unplugged terminals

If wiring issues are found

Reconnect the wiring securely and test again.

If the wiring appears normal

Continue to Step 2.

Step 2 – Check the Multifunction Switch Wiring

Inspect the purple wire on the XHB8 connector between the multifunction switch main line and the junction box. 

If loose or incorrect wiring is found

Reconnect the wiring securely and test again.

If the wiring appears normal

Continue to Step 3.

Step 3 – Further Inspection Required

If the horn still does not work, further inspection may be required for:

• The horn
• The junction box
• The multifunction switch 

Please contact support with:

• A video showing the issue
• Photos of the connector wiring

Headlights Do Not Work

This issue applies if all other lights work normally but the headlights do not turn on. 

Step 1 – Check the Headlight Wiring

Open the battery compartment cover and locate the XHB3 connector between the multifunction switch main line and the junction box. 

Inspect the brown wire for:

• Loose wiring
• Incorrect wiring
• Unplugged terminals

If loose or incorrect wiring is found

Reconnect the wiring securely and test again.

If the wiring appears normal

Continue to Step 2.

Step 2 – Check the Headlight Voltage Output

With the display powered on, locate the red XHB2 connector between the headlights and the junction box. 

Use a multimeter in 220V DC mode:

• Red probe on the red wire terminal
• Black probe on the black wire terminal

Press and hold the headlight switch while testing.

Normal output voltage should match the battery voltage.

If there is no voltage output

The junction box may require further inspection.

Please contact support with:

• Voltage readings if available
• Photos of the connector wiring
• A video showing the issue

If voltage output is normal

The headlights may require further inspection.

Please contact support with:

• A video showing the issue
• Photos of the headlight wiring

If you are not comfortable using a multimeter

Stop troubleshooting and contact support.

Right Rear Tail Light Does Not Work

This issue may be caused by:

• Loose XHB2 connector wiring
• Right rear tail light fault

Step 1 – Check the Right Rear Tail Light Connector

Open the battery compartment cover and inspect the green XHB2 connector between the right rear tail light and the junction box. 

Check for:

• Loose wiring
• Incorrect connections
• Unplugged terminals

If loose or incorrect wiring is found

Reconnect the wiring securely and test again.

If the wiring appears normal

The right rear tail light may require further inspection.

Please contact support with:

• A video showing the issue
• Photos of the connector wiring

Left Rear Tail Light Does Not Work

This issue may be caused by:

• Loose XHB2 connector wiring
• Left rear tail light fault

Step 1 – Check the Left Rear Tail Light Connector

Open the battery compartment cover and inspect the blue XHB2 connector between the left rear tail light and the junction box. 

Check for:

• Loose wiring
• Incorrect connections
• Unplugged terminals

If loose or incorrect wiring is found

Reconnect the wiring securely and test again.

If the wiring appears normal

The left rear tail light may require further inspection.

Please contact support with:

• A video showing the issue
• Photos of the connector wiring

Left Front Spot Light Does Not Work

This issue may be caused by:

• Loose XHB2 connector wiring
• Left front spot light fault

Step 1 – Check the Left Front Spot Light Connector

Open the battery compartment cover and inspect the blue XHB2 connector between the left front spot light and the junction box. 

Check for:

• Loose wiring
• Incorrect connections
• Unplugged terminals

If loose or incorrect wiring is found

Reconnect the wiring securely and test again.

If the wiring appears normal

The left front spot light may require further inspection.

Please contact support with:

• A video showing the issue
• Photos of the connector wiring

Right Front Spot Light Does Not Work

This issue may be caused by:

• Loose XHB2 connector wiring
• Right front spot light fault

Step 1 – Check the Right Front Spot Light Connector

Open the battery compartment cover and inspect the green XHB2 connector between the right front spot light and the junction box. 

Check for:

• Loose wiring
• Incorrect connections
• Unplugged terminals

If loose or incorrect wiring is found

Reconnect the wiring securely and test again.

If the wiring appears normal

The right front spot light may require further inspection.

Please contact support with:

• A video showing the issue
• Photos of the connector wiring

Left Turn Signal Does Not Flash

This issue may be caused by:

• Loose multifunction switch wiring
• Loose turn signal wiring
• Junction box faults
• Multifunction switch main line faults

Step 1 – Check the Left Turn Signal Indicator

Turn the display on and activate the left turn signal switch. 

If the indicator light does not turn on

Open the battery compartment cover and inspect the blue wire on the XHB8 connector between the multifunction switch main line and the junction box.

If loose or incorrect wiring is found

Reconnect the wiring securely and test again.

If the wiring appears normal

The multifunction switch may require further inspection.

Please contact support with:

• A video showing the issue
• Photos of the connector wiring

If the indicator light turns on normally

Continue to Step 2.

Step 2 – Check the Left Turn Signal Wiring

Inspect the blue XHB2 connector between the left front/rear turn signals and the junction box. 

Check for:

• Loose wiring
• Incorrect wiring
• Unplugged terminals

If loose or incorrect wiring is found

Reconnect the wiring securely and test again.

If the wiring appears normal

Continue to Step 3.

Step 3 – Check Junction Box Voltage Output

This step requires a multimeter and electrical testing experience. 

Use a multimeter in 220V DC mode and measure the voltage output from the blue XHB2 connector while the left turn signal switch is activated.

Normal voltage should fluctuate around:

• 12V DC

If there is no voltage output

The junction box may require further inspection.

Please contact support with:

• Voltage readings if available
• Photos of the junction box wiring

If voltage output is normal

The multifunction switch main line may require further inspection.

Please contact support with:

• A video showing the issue
• Photos of the wiring

Right Turn Signal Does Not Flash

This issue may be caused by:

• Loose multifunction switch wiring
• Loose turn signal wiring
• Junction box faults
• Multifunction switch main line faults

Step 1 – Check the Right Turn Signal Indicator

Turn the display on and activate the right turn signal switch. 

If the indicator light does not turn on

Open the battery compartment cover and inspect the green wire on the XHB8 connector between the multifunction switch main line and the junction box.

If loose or incorrect wiring is found

Reconnect the wiring securely and test again.

If the wiring appears normal

The multifunction switch may require further inspection.

Please contact support with:

• A video showing the issue
• Photos of the connector wiring

If the indicator light turns on normally

Continue to Step 2.

Step 2 – Check the Right Turn Signal Wiring

Inspect the green XHB2 connector between the right front/rear turn signals and the junction box. 

Check for:

• Loose wiring
• Incorrect wiring
• Unplugged terminals

If loose or incorrect wiring is found

Reconnect the wiring securely and test again.

If the wiring appears normal

Continue to Step 3.

Step 3 – Check Junction Box Voltage Output

This step requires a multimeter and electrical testing experience. 

Use a multimeter in 220V DC mode and measure the voltage output from the XHB2 connector while the right turn signal switch is activated.

Normal voltage should fluctuate around:

• 12V DC

If there is no voltage output

The junction box may require further inspection.

Please contact support with:

• Voltage readings if available
• Photos of the junction box wiring

If voltage output is normal

The multifunction switch main line may require further inspection.

Please contact support with:

• A video showing the issue
• Photos of the wiring

Left Side Light Strip Does Not Work

This issue may be caused by:

• Loose wiring
• Left side light strip fault

Step 1 – Check the Left Side Light Strip Wiring

Open the battery compartment cover and inspect the wiring between the left side light strip and the junction box. 

If loose or incorrect wiring is found

Reconnect the wiring securely and test again.

If the wiring appears normal

Continue to Step 2.

Step 2 – Test the Left Side Light Strip

Connect the right side light strip to the output terminal of the left side light strip controller. 

Turn the display on and switch on the running lights.

For older models, the light strip switch may be located separately near the charging port.

If the right side light strip works

The left side light strip may be faulty.

Please contact support with:

• A video showing the test
• Photos of the connectors

If the right side light strip also does not work

Further controller or wiring inspection may be required.

Please contact support with:

• A video showing the issue
• Photos of the wiring

Right Side Light Strip Does Not Work

This issue may be caused by:

• Loose wiring
• Right side light strip fault

Step 1 – Check the Right Side Light Strip Wiring

Open the battery compartment cover and inspect the wiring between the right side light strip and the junction box. 

If loose or incorrect wiring is found

Reconnect the wiring securely and test again.

If the wiring appears normal

Continue to Step 2.

Step 2 – Test the Right Side Light Strip

Connect the left side light strip to the output terminal of the right side light strip controller. 

Turn the display on and switch on the running lights.

For older models, the light strip switch may be located separately near the charging port.

If the left side light strip works

The right side light strip may be faulty.

Please contact support with:

• A video showing the test
• Photos of the connectors

If the left side light strip also does not work

Further controller or wiring inspection may be required.

Please contact support with:

• A video showing the issue
• Photos of the wiring

Lights Work While the Display Is Off

If the normal lights still operate while the display is turned off, the display MOS may require further inspection. 

Please contact support with:

• A video showing the issue
• A photo of the display
• Details about when the issue started

When To Contact Support

Please contact support if:

• The issue remains after completing these checks
• You are unsure how to complete a step
• There is visible wiring damage
• There was water exposure, crash, impact, modification, or third-party repair
• A connector appears melted or damaged
• Internal electrical inspection may be required
• The scooter is unsafe to ride

What To Send Support

Please provide:

• Your order number
• A photo/video of the issue
• A video showing the light behaviour
• A photo of the display
• Photos of visible wiring or connector damage
• Confirmation of:
  • water exposure
  • crash or impact
  • modifications
  • third-party repair
• Details of troubleshooting already completed

Important Safety Notes

• Do not continue riding with unresolved electrical faults.
• Do not ride with visible wiring damage, overheating, smoke, burning smell, or water exposure.
• Do not work on wiring while the scooter is powered on unless specifically required for testing.
• Do not force connectors together.
• Stop troubleshooting and contact support if unsure.