What is service transfer case?
What is service transfer case?
The transfer case is a mechanical component in all four-wheel-drive and all-wheel-drive vehicles. It distributes engine power from the transmission to the front and rear drive shafts, acting as a differential between the front and rear wheels.
How do I know if my transfer case is gone?
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.
How does the transfer case encoder motor work?
The transfer case encoder motor is a bi-directional DC motor. When energized through motor control A or motor control B, the ground connection is provided by the opposing motor control circuit, which is then grounded through the transfer case control module (TCCM) ground circuit.
What causes the transfer case control module to set?
The transfer case control module monitors the actuator current and sensor output to verify the proper position has been obtained. Deviations in current and position from expected values will cause this DTC to set if the ignition is ON and the system battery voltage is between 10.5–18 V.
What kind of motor is in transfer case?
Also, if you have C0387, C0387 or C0569 stored, check the transfer case electrical connectors and wiring. The transfer case encoder motor is a bi-directional DC motor.
The transfer case encoder motor is a bi-directional DC motor. When energized through motor control A or motor control B, the ground connection is provided by the opposing motor control circuit, which is then grounded through the transfer case control module (TCCM) ground circuit.
Where is the transfer case control module located?
Transfer Case Control Module: This is the system’s brain. It is located under the dashboard above the parking brake pedal, behind a large metal bracket. There are three connectors for various sensors and outputs. These computers are programmed to match your vehicle, but Dorman sells a computer that does not require programming to your vehicle.
Why is my transfer case not moving properly?
If the transfer case won’t go to the proper position, or behaves erratically, it could be the encoder inside the encoder motor. If it does not move at all, it could be the motor itself. The entire motor can be replaced, or just the less expensive encoder inside can be changed.
Also, if you have C0387, C0387 or C0569 stored, check the transfer case electrical connectors and wiring. The transfer case encoder motor is a bi-directional DC motor.
