Kaabo Urban – Display Error Code TroubleshootingUpdated 15 hours ago

This article explains how to troubleshoot common display error codes on the Kaabo Urban.

Use this article if your scooter shows:

ERROR-05 undervoltage fault
ERROR-02 Hall sensor fault
ERROR-06 controller fault
ERROR-01 phase loss fault
ERROR-08 controller over-temperature protection
ERROR-04 throttle fault
ERROR-30 or ERROR-07 communication fault

Before You Start

Please prepare the following before troubleshooting:

Your order number
A clear photo or video of the issue
A photo or video of the error code shown on the display
A photo of the display
A video showing throttle or motor behaviour
Confirmation of:
- whether the scooter powers on
- whether the battery charges
- whether the motor engages
- whether the issue started after:
  - riding
  - charging
  - storage
  - transport
  - rain or water exposure
  - crash or impact
  - modification
  - display replacement
  - third-party repair

Important Safety Warnings

Do not continue riding if the scooter has overheating, motor resistance, visible wiring damage, smoke, burning smell, or water exposure.
Do not work on wiring while the scooter is powered on or charging.
Do not force connectors together.
Do not open sealed battery components.
Stop and contact support if you are unsure about any step.

ERROR-05 – Undervoltage Fault

What This Error Means

ERROR-05 indicates the scooter voltage has dropped below the protection threshold.

Possible causes include:

Low battery charge
Battery fault
Incorrect P08 voltage setting

Step 1 – Check battery charge level

Confirm whether the scooter battery is sufficiently charged.

If the battery is low

Fully charge the scooter and test it again.

If the battery charges unusually quickly or drains very quickly during riding

The battery may be faulty.

Please contact support regarding battery replacement.

If battery behaviour appears normal

Check the display voltage settings.

Step 2 – Check the P08 voltage setting

Power on and unlock the display.
Long press the M button and Power button together.
Enter password: 1500
Open the P settings menu.
Locate parameter P08.

Correct voltage setting for Kaabo Urban

The Kaabo Urban is a:

48V scooter

P08 must be set to:

If P08 is incorrectly set to 60V or 72V

Correct the setting back to 48V and test the scooter again.

If the issue remains after correcting the setting

Please contact support.

ERROR-02 – Hall Sensor Fault

What This Error Means

ERROR-02 indicates a Hall sensor communication issue between the motor and controller.

Possible causes include:

Loose Hall sensor connector
Bent or oxidised connector pins
Motor Hall sensor fault
Controller fault

Step 1 – Inspect the Hall sensor connector

Remove the battery compartment cover.
Locate the Hall sensor connector between the motor and controller.
Check for:
- loose connectors
- bent pins
- oxidation
- contamination

If loose wiring is found

Reconnect the connector securely.

If bent pins are found

Carefully straighten the pins or replace the connector.

If contamination or oxidation is found

Clean the connector using electrical contact cleaner.

If the issue remains after reconnecting the connector

Test the motor Hall sensors.

Step 2 – Test the motor Hall sensors

Using a multimeter:

Measurement 1

Set the multimeter to Diode Test mode.
Connect the red probe to the red Hall wire.
Measure the yellow, green, and blue wires individually.

Expected reading:

approximately 1.764

Measurement 2

Connect the red probe to the black Hall wire.
Measure the yellow, green, and blue wires individually.

Expected reading:

approximately 0.5727

If all readings are consistent

The Hall sensors are functioning normally.

The controller may require replacement.

If one or more readings differ significantly

The motor Hall sensors may be faulty.

Please contact support regarding motor replacement.

ERROR-06 – Controller Fault

What This Error Means

ERROR-06 indicates a controller communication or controller connection fault.

Possible causes include:

Loose controller connectors
Damaged controller wiring
Oxidised terminals
Controller fault

Step 1 – Inspect controller wiring connections

Remove the battery compartment cover.
Inspect:
- controller-to-display connectors
- controller-to-motor connectors
- battery output wires
- battery terminals
Check for:
- loose connectors
- damaged wires
- detached terminals
- discoloration
- oxidation

If loose connectors are found

Reconnect them securely.

If wires or terminals are damaged

Professional repair or component replacement is recommended.

If all wiring appears normal but the error remains

The controller may require replacement.

Please contact support.

ERROR-01 – Phase Loss Fault

What This Error Means

ERROR-01 indicates a motor phase wire fault.

Possible causes include:

Loose phase wire terminals
Damaged motor wiring
Controller fault
Motor fault

Step 1 – Inspect motor phase wires

Remove the battery compartment cover.
Inspect the motor phase wire terminals between the motor and controller.
Check for:
- loose connectors
- partially disconnected terminals
- damaged wiring
- oxidation

If loose terminals are found

Reconnect and secure them.

If damaged wiring or oxidised terminals are found

Professional repair or component replacement is recommended.

If the wiring appears normal but the error remains

The controller may require replacement.

If the issue still remains after controller replacement

The motor may require replacement.

Please contact support.

ERROR-08 – Controller Over-Temperature Protection

What This Error Means

ERROR-08 indicates the controller overheating protection system has activated.

Possible causes include:

Aggressive riding
Heavy controller load
Loose motor phase wires
Poor electrical contact

Step 1 – Allow the controller to cool down

Turn the scooter off.
Leave the scooter powered off for approximately 30–40 minutes.

If the error clears after cooling down

The issue was likely caused by controller overheating during riding.

Avoid prolonged aggressive riding or excessive load conditions.

If the error remains after cooling down

Inspect the motor phase wire connections.

Step 2 – Inspect motor phase wire connections

Remove the battery compartment cover.
Inspect the motor phase wire terminals between the motor and controller.
Check for:
- loose terminals
- damaged wiring
- oxidation
- discoloration

If loose terminals are found

Reconnect them securely.

If damaged or oxidised wiring is found

Professional repair or component replacement is recommended.

If the error remains after reconnecting the wiring

The controller may require replacement.

Please contact support.

ERROR-04 – Throttle Fault

What This Error Means

ERROR-04 indicates a throttle communication or throttle signal issue.

Possible causes include:

Loose throttle connector
Bent or oxidised pins
Poor display harness connection
Throttle fault
Display fault

Step 1 – Inspect the throttle connector

Remove the display cover using a flathead screwdriver.
Remove the display mounting screws using a 2.5mm hex key.
Inspect the throttle connector.
Check for:
- loose connections
- bent pins
- oxidation
- contamination

If bent pins are found

Carefully straighten the pins and reconnect the connector securely.

If contamination or oxidation is found

Clean the connector using electrical contact cleaner.

If the issue remains

Inspect the display main harness connection.

Step 2 – Inspect the display main harness connection

Use a 3mm hex key to remove the front and rear handlebar base screws.
Pull out the handlebar base carefully.
Disconnect the display main harness connector.
Check for:
- bent pins
- oxidation
- contamination

If bent pins or contamination are found

Clean or straighten the connector and reconnect it securely.

If the issue remains

Inspect the controller-side display harness connectors.

Step 3 – Inspect the controller-side display connectors

Remove the battery compartment cover.
Remove the controller mounting screws.
Inspect the display main harness connectors.
Check for:
- loose connectors
- bent pins
- oxidation
- contamination

If loose or contaminated connectors are found

Reconnect or clean the connectors and test again.

If the error remains after reconnecting the wiring

The throttle may require replacement.

If replacing the throttle does not resolve the issue

The display may require replacement.

Please contact support.

ERROR-30 / ERROR-07 – Communication Fault

What This Error Means

ERROR-30 and ERROR-07 indicate a communication fault between the:

display
controller
wiring harness

Because multiple systems may be involved, diagnosis can be more complex.

Recommended Action

Please contact support and provide:

A clear photo/video of the error code
Photos of visible wiring
A video showing startup behaviour
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 photo/video of the issue
A photo/video of the error code
A photo of the display
Photos of visible wiring
A video showing motor or throttle behaviour
Confirmation of:
- water exposure
- crash or impact damage
- modifications
- display replacement
- third-party repair
Any troubleshooting steps already completed

Important Safety Notes

Do not continue riding with unresolved error codes.
Do not ride the scooter if there is overheating, visible wiring damage, smoke, burning smell, or water exposure.
Do not open sealed battery components.
Do not work on wiring while the scooter is powered on or charging.
Do not force connectors together.

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