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Where Is The Transfer Case Control Module Located

Where Is The Transfer Case Control Module Located?

Gearbox is an indispensable part of every car. It plays a vital role in distinguishing 4WD and AWD vehicles. In terms of function, the gearbox provides outstanding traction to help the truck overcome rough terrain.

Therefore, when the gearbox has a problem, this will be a big problem for drivers. So, where is the transfer case control module located? The following article will help you quickly identify it and some issues related.

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Where Is The Transfer Case Control Module Located?

The transfer case control module (TCCM) is the part that controls the general operation of the 4-wheel drive system. Its activities include request processing, execution, and verification of system performance. Usually, the TCCM is located in the control panel on the steering column at the driver’s position.

For 4WWD vehicles, TCCM will be responsible for monitoring the movement of activities. Specifically, they will define motion handling, execution, and verification using transit case modes and truck speeds.

Common Signs Of The Transfer Case Control Module Problems

Where Is The Transfer Case Control Module Located

As you know, the transfer case control module is an essential detail in the steering system. If they fail, a bunch of other parts won’t be able to function correctly. So how to know when TCCM will crash? You can rely on 5 common phenomena below.

# Problem 4WD system (4WD)

4-wheel drive system problems are one of the common phenomena that many drivers have encountered. It will be difficult for you to repair them yourself until you get the help of a technician.

The cause is various problems, such as a problem with the differential or the driveshaft not working correctly. In addition, a faulty drive system can also be an indicator of a problem in the case of an internal transfer.

# Unusual noises in the car

Strange noises are the most obvious sign to know when your car has a problem. You can rely on them to distinguish each issue in different parts. If you hear a humming, grinding, or growling noise that increases as you accelerate.

In addition, the car feels sluggish when accelerating combined with unusual noises is also something you need to be aware of. Most of these problems are caused by:

  • Low liquid level
  • Mechanical damage
  • Broken gear
  • Loose chain
  • Poor bearing

# Transfer box with accumulated water

The leading cause of grease appearing under the car is a leak coming from the gearbox or surrounding area. You can visually check it by sliding down the bottom of the truck behind the transmission.

# Some gear shifting problems

The problem of shifting between numbers is the next most common cause of TCCM issues. However, when it comes to the source of the problem, it could be due to a low liquid level or a broken link.

# The warning light comes on

Currently, there are some vehicles equipped with “4WD service request notice”. All information will be displayed on the control panel so that you can observe and detect problems easily in the system.

For vehicles that have not been renewed, the warning light will blink continuously to signal a problem inside the system.

How can you test the module that controls the transfer case when detecting some of the above phenomena? Here are 3 ways for you to check TCCM quickly.

How To Test The Transfer Case Control Module

# Use car battery

You can use a car battery or a mobile jumper to test the transfer case motor. First, you need to use multimeter leads and connect them to the jump pack terminals. The idea of ​​doing this is to test the gears in motion.

It would help if you made sure that there would be no mistakes when connecting the probe to the orange and yellow wires.

Usually, the motor-driven gearbox must move in both directions and move freely. The rest of the cases will be unusual. You need to replace the gear shift motor right away. The average price is around 50-80 dollars.

# Check Engine

To remove and check the engine, you need to lift the car and support it with the jack. Next, you slide down and locate the gearbox. Usually, it will be like a windowed engine and located in the back of the car’s transmission box.

You should see about 3-4 bolts securing the gearbox. Your job is to disassemble the bolts and connect the wire connectors. After taking all the steps, you can start checking the engine.

# Using a check light

To test the TCCM, you can use the test light to locate the yellow and orange wires on the actuator.

Because it’s 2 wires controlling the motor. Then you set the Ohm to 200 ohms and put the probes in the orange-yellow wire. This way, you will get a value around 2.2-2.7. If this indicator changes abnormally, the gearshift motor is indeed faulty.

Some Frequently Asked Questions

Q: How do I reset my transfer case control module?

To clear and reset the TCCM, pull the 5 amp TCCM thread bridge located at the bottom of the fuse box. Then you need to wait at least half an hour and replace the fuse.

Next, you turn the electric key for the car to run and wait for the 4×4 light to flash, then turn off the engine. You need to repeat the steps 5 times before restarting the vehicle.

Q: What happens when the transfer case motor goes bad?

If the TCCM does not work well during operation, your car may be permanently left in a neutral state. Additionally, if the TCCM fails electronically, it can cause the usual high-to-low gear shift from 2-wheel to 4-wheel drive.

Q: Can you drive with a bad transfer case?

The answer is yes. But it would help if you did not ride when TCCM was in trouble. Because it can lead to a series of serious mechanical problems. Among them, liquid leakage is a common problem of the gearbox.

In addition, there is a seal between the transmission box and the gearbox, and if that seal is destroyed, it will cause transmission fluid leakage. From there, the engine and surrounding components will be seriously damaged.


Hopefully, the article will help you better understand the phenomena when TCCM has problems. Usually, there will be 5 common phenomena that you can easily recognize when the transmission is not working correctly.

At that time, there will be 3 most straightforward ways to check to help you find out the nature of the phenomena. You mustn’t drive when TCCM crashes. Because it will cause liquid leakage, causing severe damage to the engine and surrounding components.

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