This article explains how to troubleshoot common TFT display error codes on the Kaabo Mantis King GT. 

Use this article if your scooter shows:

• E30 communication error
• E04 throttle error
• E05 undervoltage protection error
• E02 motor Hall sensor error
• E06 controller error
• E01 phase loss error
• E08 high temperature protection error

Before You Start

Please prepare the following:

• Your order number
• A photo/video of the error code
• A photo of the TFT display
• A video showing the issue
• Confirmation whether the scooter powers on
• Confirmation whether the motors engage
• Details about whether the issue started after:
  • water exposure
  • crash or impact
  • modification
  • added electronics
  • display replacement
  • third-party repair

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

Safety Warnings

• Do not continue riding if the scooter has overheating, motor resistance, visible wiring damage, smoke, or burning smell.
• Do not continue riding if the scooter accelerates unexpectedly.
• 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.

E30 – Communication Error

This issue may be caused by:

• Added electronic accessories
• Modified wiring
• Loose wiring
• Display faults
• Junction box faults
• Controller faults
• Main line wiring faults

Step 1 – Check for Modifications or Added Electronics

Check whether the scooter has:

• Added electronic accessories
• Modified wiring
• Non-standard electrical components 

If modifications or added electronics are found

Remove the added components and restore the scooter wiring to its original condition.

Then test the scooter again.

If no modifications are found

Continue to Step 2.

Step 2 – Check the TFT Display Connector Pins

Inspect the waterproof display connector for:

• Bent pins
• Damaged terminals
• Misaligned pins 

If bent or damaged pins are found

Carefully straighten the pins if possible, reconnect the display, and test again.

If the connector appears normal

Continue to Step 3.

Step 3 – Check the SM9 Wiring Connection

Open the controller compartment cover and inspect the SM9 connector between the TFT display main line and controller A. 

Gently check the red and yellow wires for:

• Loose wiring
• Incorrect wiring
• Unplugged terminals

If wiring issues are found

Reconnect the wiring securely and test again.

If the wiring appears normal

Continue to Step 4.

Step 4 – Junction Box Isolation Test

Open the battery compartment cover and disconnect the 6-pin waterproof connector between the junction box and controller A. 

Turn the display on again.

If the E30 error disappears

The junction box may require further inspection.

Please contact support with:

• A video showing the test
• Photos of the connector area

If the E30 error remains

Continue to Step 5.

Step 5 – Controller Isolation Test

Disconnect the 7-pin waterproof connector between controller B and the main controller. 

Turn the display on again.

If the E30 error disappears

Controller B may require further inspection.

Please contact support with:

• A video showing the test
• Photos of the controller wiring

If the E30 error remains

Controller A or the TFT display main line may require further inspection. 

Please contact support with:

• Photos of all related connectors
• A video showing the issue

E04 – Throttle Error

This issue may be caused by:

• Modified wiring
• Throttle faults
• Loose wiring
• Controller faults
• TFT display main line faults

Step 1 – Check for Wiring Modifications

Check whether the scooter wiring has been modified. 

If modifications are found

Restore the scooter to its original wiring configuration and test again.

If there are no modifications

Continue to Step 2.

Step 2 – Check the Throttle Connector

Disconnect the throttle waterproof connector and inspect the pins for:

• Bent pins
• Loose terminals
• Damage 

If bent pins are found

Straighten the pins carefully, reconnect the throttle, and test again.

If the pins appear normal

Continue to Step 3.

Step 3 – Check the Main Line Wiring

Open the controller compartment cover and inspect the SM9 connector between the TFT display main line and controller A. 

Inspect the grey wire for:

• Loose wiring
• Incorrect wiring
• Unplugged terminals

If wiring issues are found

Reconnect the wiring securely and test again.

If the wiring appears normal

Continue to Step 4.

Step 4 – Further Inspection Required

If the E04 error remains after the wiring checks:

• Controller A
• The TFT display main line
• The throttle assembly

may require further inspection. 

Please contact support with:

• A video showing the error
• Photos of the throttle connector
• Photos of the wiring

E05 – Undervoltage Protection Error

This issue may be caused by:

• Low battery charge
• Battery faults
• Incorrect display voltage settings
• Controller faults

Step 1 – Charge the Scooter

When the E05 error appears, fully charge the scooter battery. 

If the scooter operates normally after charging

The issue was likely caused by low battery voltage.

If the issue remains

Continue to Step 2.

Step 2 – Check for Battery Range Problems

Check whether:

• The battery charges unusually quickly
• The scooter shuts down after only a short ride
• The scooter reports E05 after riding only a few kilometres 

If these symptoms occur

The battery may require further inspection.

Please contact support with:

• A video showing the issue
• Charger behaviour video
• Riding distance details

If these symptoms do not occur

Continue to Step 3.

Step 3 – Check the Voltage Setting

The Kaabo Mantis King GT is a 60V scooter. 

The display voltage parameter should be set to:

• 60V

If the voltage setting is incorrect

Correct the setting and test the scooter again.

If the voltage setting is already correct

Continue to Step 4.

Step 4 – Identify Whether the Error Appears in the F or R Area

Press the M button and check whether the E05 error appears in:

• The F area
• The R area 

If the error appears in the F area

Controller B may require further inspection.

Please contact support with:

• A video showing the error
• Photos of the display

If the error appears in the R area

Controller A may require further inspection.

Please contact support with:

• A video showing the error
• Photos of the display

E02 – Motor Hall Sensor Error

This issue may be caused by:

• Loose Hall sensor wiring
• Damaged motor wiring
• Motor faults
• Controller faults

Step 1 – Identify Which Area Shows the Error

Press the M button and check whether the E02 error appears in:

• The F area
• The R area 

If the error appears in the F area

Continue with the front motor checks below.

If the error appears in the R area

Continue with the rear motor checks below.

Step 2 – Check the Hall Sensor Wiring

Open the battery compartment cover and inspect the SM5 connector between the motor Hall sensor wiring and the controller. 

Check for:

• Loose connectors
• Foreign material on the pins
• Damaged insulation
• Wiring damage

If dirt or foreign material is found

Clean the connector carefully and reconnect it securely.

If damaged insulation is found

Wrap the damaged section using high-temperature resistant insulating tape.

If the wiring appears normal

Continue to Step 3.

Step 3 – Further Motor or Controller Testing Required

Additional Hall sensor isolation testing between the motors and controllers may be required. 

This is an advanced electrical inspection step.

Please contact support before continuing.

Provide:

• A video showing the error
• Photos of all Hall sensor connectors
• Confirmation whether the F or R area shows the error

E06 – Controller Error

This issue may be caused by:

• Loose controller wiring
• Controller faults

Step 1 – Identify Whether the Error Appears in the F or R Area

Press the M button and check whether the E06 error appears in:

• The F area
• The R area 

If the error appears in the F area

Continue to the B controller wiring checks.

If the error appears in the R area

Continue to the A controller wiring checks.

Step 2 – Check the Controller Connector Wiring

Open the controller compartment cover and inspect the controller connector wiring. 

Check whether:

• The XHB8 connector between controller B and the junction box is loose
• The XHB9 connector between controller A and the junction box is loose

If loose wiring is found

Reconnect the wiring securely and test again.

If the wiring appears normal

Continue to Step 3.

Step 3 – Further Controller Inspection Required

If the E06 error remains after the wiring checks:

• Controller A
• Controller B

may require further inspection. 

Please contact support with:

• A video showing the error
• Photos of all controller connectors

E01 – Phase Loss Error

This issue may be caused by:

• Loose motor phase wires
• Damaged motor wiring
• Controller faults
• TFT display faults

Step 1 – Identify Which Area Shows the Error

Press the M button and check whether the E01 error appears in:

• The F area
• The R area 

If the error appears in the F area

The front drive system may be affected.

If the error appears in the R area

The rear drive system may be affected.

Step 2 – Check the Motor Phase Wires

Open the battery compartment cover and inspect the yellow, green, and blue motor phase wires between the motor and controller. 

Check for:

• Loose connectors
• Foreign material on the pins
• Damaged insulation
• Wiring damage

If dirt or foreign material is found

Clean the connector carefully and reconnect it securely.

If damaged insulation is found

Wrap the damaged section using high-temperature resistant insulating tape.

If the wiring appears normal

Continue to Step 3.

Step 3 – Further Inspection Required

If the E01 error remains after the wiring checks:

• Controller A
• Controller B
• The TFT display

may require further inspection. 

Please contact support with:

• A video showing the error
• Photos of all phase wire connectors
• Confirmation whether the F or R area shows the error

E08 – High Temperature Protection Error

This issue may be caused by:

• Extreme riding conditions
• Controller overheating
• Loose motor phase wiring
• Incorrect display temperature settings

Step 1 – Allow the Scooter to Cool Down

If the E08 error appears while riding:

• Stop riding immediately
• Turn the scooter off
• Leave the scooter for approximately 30 minutes 

Then power the scooter back on after the controller temperature has reduced.

If the issue is resolved

The controller likely entered temperature protection mode.

Monitor the scooter during future rides.

If the issue remains

Continue to Step 2.

Step 2 – Check the Motor Phase Wire Connections

Open the controller compartment cover and inspect the yellow, green, and blue phase wires between the motor and controller. 

If loose wiring is found

Reconnect the wiring securely and test again.

If the wiring appears normal

Continue to Step 3.

Step 3 – Check the Display Temperature Setting

The normal TFT display temperature setting is:

• 120°C 

If the temperature setting is incorrect

Correct the setting and test the scooter again.

If the temperature setting is already correct

Further controller inspection may be required.

Please contact support with:

• A video showing the error
• Photos of the display settings
• Details about riding conditions before the error occurred

When To Contact Support

Please contact support if:

• The error code remains after completing these checks
• The scooter has visible wiring damage
• There was water exposure, impact, modification, or third-party repair
• The scooter overheats repeatedly
• There is motor resistance
• The scooter accelerates unexpectedly
• 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 error code
• A photo of the TFT display
• A video showing the issue
• Photos of visible wiring or connector damage
• Confirmation of:
  • water exposure
  • crash or impact
  • modifications
  • added electronics
  • third-party repair
• Details of troubleshooting already completed

Important Safety Notes

• Do not continue riding with unresolved error codes.
• Do not ride with overheating, motor resistance, visible wiring damage, smoke, or burning smell.
• 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.