Troubleshooting Trailer Brakes that Lock Up


My electric brakes on my fifth wheel lock as soon as I touch the brake pedal in the truck. I lowered the min and max setting as low as they go and it makes no difference. Can you give me some troubleshooting procedures to find this problem. This just started recently. Thanks,


Expert Reply:

Since you've already checked the setting on the brake controller the next thing is to check the adjustment of the brakes. I've linked a video and if you skip ahead to around the 4:30 mark you'll see the brakes being adjusted.

You should also inspect the wiring starting at the connectors to make sure there are no shorts. Look for corrosion in the connectors or any pinched or exposed wire.

If you still can't find the problem let me know what you have found and we'll continue to troubleshoot.

expert reply by:
Charles S

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