1. Introduction
The EL-50448 TPMS Reset Tool is designed to assist in the re-learn procedure for Tire Pressure Monitoring Systems (TPMS) in most GM vehicles equipped with a 315 or 433 MHz TPMS. This procedure is necessary after tire rotations, Remote Control Door Lock Receiver Module replacement, or Tire Pressure Sensor replacement to ensure the system functions correctly.
The tool facilitates the reading of tire pressure sensor information, allowing the Body Control Module to record the ID information of each sensor position. It is a compact and portable device, universal for most cars, and features a diagnostic sensing function.
Figure 1.1: Front and back view of the EL-50448 TPMS Reset Tool.
- Purpose: To perform the "Sensor Re-Learn Procedure" for GM vehicle TPMS.
- Compatibility: Works on GM models equipped with 315 or 433 MHz TPMS, including 2014 GM models and later.
- Features: Diagnostic sensing function, compact and portable design.
- Note: The package does not include the charger and battery. Please purchase them separately.
2. Setup
Before using the EL-50448 TPMS Reset Tool, ensure it is properly powered. The tool requires a 9V battery (not included). Follow these steps to install the battery:
- Locate the battery compartment cover on the back of the tool.
- Slide the cover downwards to open the compartment.
- Insert a new 9V battery, ensuring the polarity is correct.
- Slide the battery compartment cover back into place until it clicks securely.
Figure 2.1: Battery compartment on the back of the tool.
Once the battery is installed, the tool is ready for operation.
3. Operating Instructions
To perform the tire pressure sensor re-learn procedure, follow these steps carefully:
Step 1: Enter Learning Mode
- Set the vehicle's gearshift lever to "P" (Park).
- Put the ignition switch to "ON" (Engine Off, Ignition On).
- Navigate to the tire pressure display interface using the Driver Information Center (DIC).
- The DIC should display "Press Set / Ctrl to re-learn".
- Press the "Set / Ctrl" button on your vehicle's controls.
- The vehicle's turn signal will light for 3 seconds, and the horn will beep twice, indicating that the vehicle has entered the learning mode.
Step 2: Read Tire Pressure Sensor Information (Front-Left Wheel)
Begin the re-learn process starting with the front-left wheel.
- Hold the EL-50448 tool's antenna up against the valve core position of the front-left tire. Ensure it is close to the rim of the tire sidewall.
- Press the activation button on the EL-50448 tool to start the reading process.
- A single horn beep from the vehicle indicates that the tire pressure sensor information has been successfully read.
Figure 3.1: Positioning the tool near the tire valve for activation.
Figure 3.2: The tool activates the individual TPMS sensor with a single button press.
Step 3: Read Other Tire Pressure Information
Continue the process for the remaining tires in the following order:
- Front-Right wheel
- Rear-Right wheel
- Rear-Left wheel
Use the same method as described in Step 2 for each wheel. After the last wheel's sensor information is successfully read, the vehicle's turn signals will light for 3 seconds, and the horn will beep twice, indicating that the learning procedure is complete.
Figure 3.3: The tool is held against the tire sidewall near the valve stem.
4. Maintenance
Proper maintenance ensures the longevity and optimal performance of your EL-50448 TPMS Reset Tool.
- Cleaning: Wipe the tool with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Storage: Store the tool in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Replacement: Replace the 9V battery when the "LOW BAT" indicator light illuminates on the tool. Refer to the "Setup" section for battery installation instructions.
- Avoid Drops: Protect the tool from physical shocks and drops, which can damage internal components.
5. Troubleshooting
If you encounter issues while using the EL-50448 TPMS Reset Tool, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|
| Tool does not activate sensor / No horn beep | - Vehicle not in learning mode.
- Tool battery is low or dead.
- Tool not positioned correctly.
- Sensor issue.
| - Ensure vehicle is in TPMS learning mode (refer to Step 1 of Operating Instructions).
- Check "LOW BAT" indicator. Replace 9V battery if necessary.
- Ensure the tool's antenna is directly against the valve core and close to the rim.
- Consult a professional if the sensor is suspected to be faulty.
|
| "LOW BAT" indicator light is on | Battery power is low. | Replace the 9V battery immediately. Refer to the "Setup" section. |
| Tool not turning on | - No battery or incorrect installation.
- Faulty battery.
| - Ensure a 9V battery is installed correctly with proper polarity.
- Try a new 9V battery.
|
Figure 5.1: Indicator lights on the EL-50448 tool.
6. Specifications
| Attribute | Detail |
|---|
| Model Number | EL-50448 (OEC-T5) |
| Item Model Number | 756029690080 |
| Brand | TPMS |
| Item Weight | 5 ounces |
| Dimensions (Approx.) | 153mm (6.02") x 53mm (2.09") x 35mm (1.38") |
| Power Source | 9V Battery (not included) |
| Operating Frequency | 315 or 433 MHz (for TPMS sensors) |
| UPC | 669763149045 |
| Manufacturer | Amzmall |
| Date First Available | September 14, 2020 |
Figure 6.1: Approximate dimensions of the EL-50448 tool.
7. Warranty and Support
For warranty information, technical support, or any inquiries regarding your EL-50448 TPMS Reset Tool, please contact the manufacturer or seller directly.
- Manufacturer: Amzmall
- General Support Line: 1-888-407-8767 (As seen on product labeling)
- Return Policy: Refer to your purchase platform's return policy (e.g., Amazon's 30-day refund/replacement policy).
Please retain your proof of purchase for any warranty claims.
