Troubleshooting
The controller has no power.
The controller display is not on.
Module Status
Possible Cause
Corrective Action
1. The controller is in Sleep mode.
1. Press any button to wake up the
controller.
2. The vehicle key is in the Off position.
2. Start the vehicle or move the key to the
Accessory position.
3. The fuse connection is loose or
corroded.
3. Tighten or clean the connection.
4. The battery connection is loose or
corroded.
4. Tighten or clean the connection.
5. The 2 A inline fuse is not functioning.
5. Replace the fuse.
1-6. The LED is off or flashing green.
6. The controller is not plugged into the
vehicle harness.
6. Plug in the controller.
Low Voltage Error
There is a battery with an X in the center of the controller screen.
Module Status
Possible Cause
Corrective Action
1. The battery is low.
1. Charge the battery.
1-2. The LED is solid red.
2. The alternator is not functioning.
2. Replace the alternator.
Communication Error
There is a large X in the center of the controller screen.
Module Status
Possible Cause
Corrective Action
1. The power/ground cable is not
connected to the battery.
1. Connect the power/ground cable to the
battery.
2. The 150 A fuse is not functioning.
2. Replace the fuse.
3. The power/ground cable is not
connected to the spreader.
3. Connect the power/ground cable to the
spreader.
4. The power/ground cable is not
connected to the module.
4. Connect the power/ground cable to the
module.
1-5. The LED is off.
5. The module is not functioning.
5. Replace the module.
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Summary of Contents for VBX 6500
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