## Intermittent Communication Between the TrailerTRACS Transmitter and the Qualcomm Unit sb54279

### Introduction

The TrailerTRACS system is a wireless communication system that allows for the exchange of data between a truck tractor and a trailer. The system consists of a transmitter that is mounted on the trailer and a receiver that is mounted on the tractor. The transmitter sends data about the trailer's status, such as its location, speed, and temperature, to the receiver. The receiver then sends this data to the truck's onboard computer, which can be used to display the data to the driver or to send it to a remote location.

The Qualcomm Unit is a mobile communication device that is used to provide cellular and GPS connectivity to the truck. The unit is typically mounted on the dashboard of the truck and is connected to the truck's electrical system. The unit can be used to make phone calls, send and receive text messages, and access the internet.

### Problem

The TrailerTRACS transmitter and the Qualcomm Unit may experience intermittent communication problems. These problems can be caused by a variety of factors, such as:

* **Electrical interference:** Electrical interference from other devices in the truck can disrupt the communication between the transmitter and the unit.
* **Physical barriers:** Physical barriers, such as metal objects or buildings, can block the signal from the transmitter to the unit.
* **Software problems:** Software problems on the transmitter or the unit can also cause communication problems.

### Symptoms

The following are some of the symptoms that may be experienced when the TrailerTRACS transmitter and the Qualcomm Unit are experiencing intermittent communication problems:

* **The trailer data is not being displayed on the truck's onboard computer.**
* **The Qualcomm Unit is not able to send or receive data.**
* **The Qualcomm Unit is experiencing frequent dropouts.**

### Troubleshooting

The following are some troubleshooting steps that can be taken to resolve intermittent communication problems between the TrailerTRACS transmitter and the Qualcomm Unit:

1. **Check for electrical interference.** Disconnect any other devices that are connected to the truck's electrical system and see if the communication problems go away.
2. **Check for physical barriers.** Make sure that there are no physical barriers between the transmitter and the unit.
3. **Check the software on the transmitter and the unit.** Make sure that the software on both devices is up to date.
4. **Contact the manufacturer of the transmitter or the unit.** If you are unable to resolve the communication problems yourself, you should contact the manufacturer of the transmitter or the unit for assistance.

### Conclusion

Intermittent communication problems between the TrailerTRACS transmitter and the Qualcomm Unit can be caused by a variety of factors. By following the troubleshooting steps outlined in this article, you can resolve most communication problems and restore the system to normal operation.

Intermittent Communication Between the TrailerTRACS
Transmitter and the Qualcomm Unit 54-279
Freightliner
Service Bulletin
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy COE
Cargo
Columbia
Coronado
Business Class M2
> Cascadia
108SD/114SD