Hitches
It's important to have the correct hitch equipment. Crosswinds, large trucks going by, and rough roads are a few reasons why you’ll need the right hitch. Here are some rules to follow:
Safety chains
You should always attach chains between your vehicle and your trailer. Cross the safety chains under the tongue of the trailer so that the tongue will not drop to the road if it becomes separated from the hitch.
Instructions about safety chains may be provided by the hitch manufacturer or trailer manufacturer. Follow the manufacturer’s recommendation for attaching safety chains. Always leave just enough slack so you can turn with your trailer. And, never allow safety chains to drag on the ground.
Trailer brakes
If your trailer is equipped with a braking system, make sure it conforms to federal and/or local regulations and that it is properly installed and operating correctly.
If your trailer weighs more than the maximum trailer weight without trailer brakes loaded, then it needs its own brakes and they must be adequate.
Be sure to read and follow the instructions for the trailer brakes so you’ll be able to install, adjust and maintain them properly. Be sure not to tap into your vehicle's brake system.
WARNING
Do not use a trailer with its own brakes unless you are absolutely certain that you have properly set up the brake system. Use an experienced, competent trailer shop for this work.
Hyundai Tucson (LM) 2010-2015 Service Manual: General Information
General Troubleshooting Information
Before Troubleshooting
1.
Check applicable fuses in the appropriate fuse/relay box.
2.
Using the battery checker (MCR-570 KIT), check the battery for damage, state of charge, and clean and tight connections.
(Refer to the EE group - "Battery")
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Hyundai Tucson (LM) 2010-2015 Service Manual: 4WD ECU Schematic Diagrams
Circuit Diagram
4WD ECU Connector
PinFunction1CAN communication line (Low)2CAN communication line (High)3-4Pressure sensor signal(+)5-6Lock mode switch7Oil pressure motor B8Oil pressure motor A9-10-11Pressure sensor(Input)12Input sensor signal(-)13Battery power 14Ground15IG power16-17-1 ...