Why Is The Service 4wd Light On?

What are the symptoms of a bad transfer case motor?

Symptoms of a Bad or Failing Transfer Case Output Shaft SealDifficulty shifting gears.

The seal that keeps fluid inside the transfer case and thus the transmission is vital for the smooth operation of the vehicle’s transmission.

Grinding noises coming from underneath the vehicle.

Vehicle jumps in and out of four-wheel drive..

How do you test a 4 wheel drive switch?

How to Test a Four-wheel DriveLocate the four-wheel drive high button on the dash. … Drive the vehicle as normal and press the button or shift into 4Hi. … Turn the vehicle to the left and right while moving. … Locate the four-wheel drive low button on the dash or shifter. … Stop the vehicle. … Engage 4Lo by pressing the button or shifting.More items…

How do I know if I have all wheel drive?

Look underneath your vehicle while it is turned off for the axle shaft. The shaft simply looks like a large bar going from the front to rear axle. If you see an axle shaft running from the front to rear axles, you have an all-wheel drive vehicle.

How do I know if my 4wd switch is bad?

Symptoms of a Bad or Failing Front Axle Engagement SwitchDifficulty engaging four-wheel drive. One of the first symptoms of a potential problem with the front axle engagement switch is difficulty engaging the vehicle’s four-wheel drive system. … Four-wheel drive becomes stuck. … Four-wheel drive mode does not activate.

What does the all wheel drive warning light mean?

The all-wheel drive (AWD) Warning Light is located on the instrument panel. When this light illuminates, the vehicle has detected a problem with the AWD system, or the diameter of the front and rear wheels is different. Tips The AWD Warning Light will illuminate when the vehicle is first turned on.

Can you still drive with a bad transfer case?

Plus, you should try not to drive with a bad transfer case even though you cannot get the repair done. If you can take your car out of four-wheel-drive, you should do so. … Plus, any off-road driving that you do should be kept to a minimum because bumps in the road could cause even more damage to your transfer case.

Why is my 4wd Low light flashing?

A flashing indicator light is typically caused by wiring or an electrical component like the controller, a faulty motor or fork, a speed sensor, or a position switch. Many 4WD units have an actuator located on the front axle to lock and engage the front axle for 4WD.

Why is my 4 wheel drive light on?

A lot of the time, a flashing 4WD light is no reason to be alarmed, because it simply means that the system is working as designed. On vehicles where four-wheel drive is only activated on demand — that is to say, when traction conditions require it — this light shows up to tell you that it’s been activated.

How do you reset the service light on a 4wd?

To reset the Change Oil light turn the ignition on but do not start and then push the gas pedal 3 times. The Service 4WD light is most likely the 4WD switch on the dashboard. If the lights are acting funny then the switch needs to be replaced.

How do I reset my transfer case control module?

Cheap way – To clear the codes and reset the computer, pull the 5 amp TCCM fuse, located at the bottom of the fuse box. Wait at least a half hour, and then replace the fuse. Turn the ignition key to run, wait for the 4×4 lights to blink, and then turn off. Repeat 5 times, and then start the truck.

What does an actuator do on a 4wd?

Summary. A 4-wheel drive actuator is a device that allows you to automatically switch between two-wheel and four-wheel drive. This switch is installed on the front axle tube or on the differential housing.

How do you test Tccm?

You have to perform a TCCM self-test to determine whether you need to change this component or not. Turn the ignition switch while observing the transfer case shift control switch indicators. A functioning TCCM will flash all the indicators before returning to the current gear.

What does SVC 4wd mean?

service 4WD system5,685. Sigurður answered 6 years ago. It means service 4WD system, the motor on the t-case could be stuck, if you use it rarely this can happen. It can be enough to take it out ,clean it and lube it and put it back in, you should hear when it is working. If this does not do it you might need a new one.

Why is my all wheel drive off?

The All-Wheel Drive Off message can appear in the driver information center (DIC). When the DIC displays this alert, it means that the rear drive system is overheating, and the all-wheel drive (AWD) system has been disabled.

How do I get my 4 wheel drive unstuck?

How to Disengage a Stuck Four-Wheel Drive LineCheck to see if you have manual hubs and that they are in “free” mode.Put your vehicle into four-wheel high mode.Drive forward for about a quarter of a mile.Stop the vehicle and shift from four-wheel to two-wheel drive.Place the vehicle in reverse and drive backwards for 15 to 20 feet.

Can I still drive with service 4wd light on?

Usually labeled “Service 4WD”, when this light comes on, a code will be stored in the computer’s memory to help identify any issues. Depending on the problem, the four wheel drive may be disabled temporarily.

How often should you service 4 wheel drive?

In some cases, no more than 30-36,000 miles. And in some cases it may be as frequently as every 15,000 miles. Also look for any kinds of leaks when you’re under it.

How do I know if my transfer case is good?

Here are some of the most common signs you may encounter when you have a bad transfer case:Gear Shifting Issues. … Difficulty Staying in 4WD. … 4WD Will Not Engage/Disengage. … Puddle Formation Directly Under the Transfer Case’s Location. … Weird Grinding, Growling or Humming Noises. … 4WD Warning Light Illuminates. … 4WD Transfer Case.More items…•

How much does it cost to service 4wd?

On average, a remanufactured transfer case costs depending on the make and model of your vehicle. The cost of labor to install it is in addition to the price of the unit and will typically run between $400 and $800.