Understanding TPMS Relearn on Aeolus
Aeolus, a brand under Dongfeng Motor Group, uses direct TPMS sensors that transmit tire pressure data via radio frequency. After replacing a sensor, rotating tires, or installing new wheels, the vehicle’s TPMS control module must “learn” the new sensor IDs and their positions. This process is called a TPMS relearn or reprogramming.
The BL-ST-063 BH-Sens sensor (433MHz) is designed as a direct OE replacement for many Aeolus models, including the Aeolus Yixuan, Aeolus AX7, and Aeolus Shine. It comes pre-programmed with the correct frequency and protocol, which simplifies the relearn process compared to universal sensors that need cloning.
Types of TPMS Relearn for Aeolus
Aeolus vehicles generally support three relearn methods. The correct method depends on your specific model year and the TPMS module version.
1. Auto Relearn (Drive Cycle)
This is the simplest method for many newer Aeolus models. It requires no tools and happens automatically when you drive the vehicle after sensor replacement.
Procedure:
- Install the new BL-ST-063 sensors and inflate all tires to the recommended pressure (check your driver’s door sticker).
- Start the engine and drive the vehicle above 25 mph (40 km/h) for 10–20 minutes.
- The TPMS module will automatically detect the new sensor IDs from the signals it receives.
- The TPMS warning light should turn off after the drive cycle. If it stays on, repeat the drive or try another method.
Note: This method works best if you replace all sensors at once. If only one sensor was replaced, the auto relearn may take longer or fail because the module expects consistent signals from all positions.
2. OBD Relearn (Using a TPMS Tool)
For precise control and faster results, use a TPMS diagnostic tool connected to the OBD-II port. This is the preferred method for workshops.
Required Tools:
- A compatible TPMS tool (e.g., Autel TS508, Bartec TPMS-100, or similar)
- The BL-ST-063 sensor (pre-programmed, no need for manual ID entry)
Procedure:
- Connect the TPMS tool to the vehicle’s OBD-II port (usually under the dashboard).
- Turn the ignition to the ON position (engine off).
- On the tool, select “Aeolus” as the vehicle brand, then choose the specific model (e.g., Aeolus AX7, Yixuan).
- If prompted, select the sensor brand as “BH-Sens” or “Baolong” and enter the sensor ID from the BL-ST-063 packaging (or let the tool read it via trigger).
- Follow the tool’s on-screen instructions to activate the sensor at each tire position (usually by holding the tool near the valve stem).
- Once all sensors are triggered, the tool will send the learn command to the vehicle’s ECU via OBD.
- The TPMS light should blink and then turn off. Verify by checking the tire pressure display.
Pro Tip: The BL-ST-063 sensor is pre-programmed with the correct protocol for Aeolus. You do not need to manually set the frequency or protocol on the tool—just trigger it and proceed.
3. Stationary Relearn (Magnet Method)
Some older Aeolus models (pre-2020) may require a stationary relearn using a magnet. This method is less common but still used on certain variants.
Required Tools:
- A strong TPMS magnet (or a bar magnet)
- The BL-ST-063 sensor (pre-installed)
Procedure:
- Park the vehicle on a level surface, turn off the engine, and set the parking brake.
- Locate the TPMS learn button or reset port (usually under the steering column, near the fusebox, or behind the glove compartment). Refer to your owner’s manual for exact location.
- Turn the ignition to the ON position (engine off). The TPMS light should start blinking.
- Hold the magnet against the valve stem of the left-front tire. The horn will beep once (or the turn signal will flash) to confirm the sensor is learned.
- Repeat for the right-front, right-rear, and left-rear tires in that order (clockwise pattern).
- After the last tire, the horn may beep twice, and the TPMS light should turn off.
- Start the engine and check for a stable tire pressure display.
Note: If the horn does not beep, the magnet may be too weak, or the sensor position is incorrect. Try a stronger magnet or move it around the valve stem base.
Comparison of Relearn Methods for Aeolus
| Method | Tools Required | Time | Best For | Aeolus Model Compatibility |
|---|---|---|---|---|
| Auto Relearn | None (just driving) | 10–20 minutes | All-sensor replacement, 2020+ models | AX7 (2021+), Shine (2022+), Yixuan Max |
| OBD Relearn | TPMS diagnostic tool | 5–10 minutes | Single sensor replacement, workshops | Most 2018+ models, including older ones |
| Stationary Relearn | TPMS magnet | 10–15 minutes | Older models, no tool available | Pre-2020 Yixuan, AX5, AX4 |
Common Issues and Solutions
- TPMS light stays on after relearn: The sensor may not be transmitting correctly. Check the battery life of the BL-ST-063 sensor (rated for 5–7 years). If the sensor is new, verify it’s properly installed and the valve stem nut is torqued to spec (typically 4–6 Nm, but confirm with your manual).
- OBD tool cannot connect to vehicle: Ensure the ignition is in the ON position (not just accessory). Some Aeolus models require the engine to be running for the OBD port to be active.
- Auto relearn fails: The vehicle may require a specific driving pattern (e.g., steady speed above 25 mph for 15 minutes without stopping). Try a different route or use the OBD method.
Recommended Part for Aeolus TPMS Replacement
For a hassle-free replacement, use the BL-ST-063 BH-Sens 433MHz TPMS sensor. It is pre-programmed to match Aeolus OE specifications, including the correct protocol and ID format. This eliminates the need for cloning or manual programming. It fits Aeolus models such as the AX7, Yixuan, Shine, and also cross-applications with Eπ, Mhero, Nammi, and Voyah vehicles using the same OE numbers (E300019160, E300020260, H56A7920001AC).
When ordering, ensure the sensor is compatible with your year and model. If in doubt, contact the supplier with your VIN for confirmation.
FAQ
How do I know if my Aeolus supports auto relearn?
Check your owner’s manual under “Tire Pressure Monitoring System.” If it mentions a “drive cycle” or “automatic learning,” it supports auto relearn. Alternatively, try the auto method first—if the light turns off after a 20-minute drive, it worked.
Can I use the BL-ST-063 sensor without a TPMS tool?
Yes, because the sensor is pre-programmed. You can use the auto relearn method (drive the car) for most 2020+ Aeolus models. For older models, you will still need a magnet or an OBD tool to initiate the relearn sequence.
What if my TPMS light blinks continuously after sensor replacement?
A blinking TPMS light usually indicates a fault, not a need for relearn. Check that the sensor is properly installed, the battery is good, and the frequency matches (433MHz). The BL-ST-063 operates at 433MHz, which is the standard for Aeolus. If the issue persists, use an OBD tool to read the error codes.
Do I need to reset the TPMS after tire rotation?
Yes, if the sensors are not automatically position-aware. Most Aeolus models require a relearn after rotation to reassign sensor IDs to the new wheel positions. Use the OBD or stationary method to reorder the positions.