Understanding TPMS Relearn for Cowin
Cowin vehicles, including models like the Cowin X3, X5, and E3, use direct TPMS sensors mounted inside the tire. When you replace a sensor or rotate tires, the vehicle’s ECU must learn the new sensor IDs or positions. Skipping this step will trigger the TPMS warning light.
Cowin systems are based on Chery architecture, so the relearn process mirrors many Chery models. The key is identifying which relearn method your specific vehicle supports. Most Cowin models from 2015 onward support auto relearn and OBD relearn, while older models may require a stationary relearn with a magnet.
Relearn Methods Overview
Not all methods work on every Cowin model. Refer to the table below for compatibility:
| Relearn Method | Tool Required | Best For | Cowin Models (Typical) |
|---|---|---|---|
| Auto Relearn | None (drive vehicle) | Tire rotation only | X3, X5 (2018+) |
| OBD Relearn | TPMS programming tool | Sensor replacement | X3, X5, E3 (all years) |
| Stationary Relearn | TPMS activation tool + magnet | Older models (pre-2016) | Early Cowin E3 |
Important: Always check your owner’s manual for the exact procedure. The steps below are general guidelines for Cowin vehicles.
Step-by-Step Relearn Procedures
Auto Relearn (Drive Cycle)
Auto relearn requires no special tools. The vehicle learns sensor positions as you drive. This works best after a tire rotation if the sensors were already paired to the vehicle.
- Ensure all tires are at recommended pressure (check door jamb sticker).
- Park the vehicle, turn the engine off.
- Turn the ignition to ON (do not start).
- Press and hold the TPMS reset button (usually under the steering wheel or in the glovebox) until the TPMS light blinks three times.
- Start the engine and drive above 15 mph (25 km/h) for 10–20 minutes.
- The TPMS light should turn off once the sensors are learned.
Note: Auto relearn may fail if the sensors are new or have been replaced. In that case, use OBD or stationary relearn.
OBD Relearn (Using a TPMS Tool)
This is the most reliable method for Cowin vehicles. You’ll need a compatible TPMS tool (e.g., Autel, Bartec, or ATEQ) that supports Chery/Cowin protocols.
- Connect the TPMS tool to the OBD-II port (under the dashboard).
- Turn the ignition to ON (engine off).
- On the tool, select “Cowin” or “Chery” as the vehicle brand.
- Choose “TPMS Relearn” or “Sensor ID Programming.”
- The tool will guide you to trigger each sensor in order: LF, RF, RR, LR (or as shown on screen).
- Use a TPMS activation tool to trigger each sensor. The tool will confirm each ID.
- Once all IDs are learned, the tool will send the data to the ECU.
- The TPMS light should turn off. Drive briefly to confirm.
Tip: The BL-ST-075 | BH-Sens 433MHz TPMS Tire Pressure Sensor | Fits Chery, Cowin, Jetour, Karry, Soueast | OE# F023114011, F113114011, F113114011BA sensor is pre-programmed with OE IDs for Cowin, so no cloning is needed. Just trigger the sensor and let the OBD tool handle the rest.
Stationary Relearn (Magnet Method)
Older Cowin models (pre-2016) may require a magnet to trigger each sensor. This is less common but still worth knowing.
- Park the vehicle on a level surface. Turn off the engine.
- Locate the TPMS sensor behind the valve stem on each tire.
- Using a TPMS activation tool, trigger the LF sensor (the tool must be within 1 inch of the sensor).
- Immediately place a strong magnet (at least 50 gauss) against the valve stem for 2–3 seconds.
- The horn will chirp once to confirm the sensor is learned.
- Repeat for RF, RR, and LR in that order.
- After the last chirp, the TPMS light will turn off.
Warning: This method is tricky. If you don’t hear a chirp, repeat the step. If it fails multiple times, switch to OBD relearn.
Tools You’ll Need
- TPMS activation tool (mandatory for all methods) – triggers the sensor to send its ID and pressure data.
- OBD TPMS programming tool (for OBD relearn) – a dedicated device like Autel TS508 or similar.
- Magnet (for stationary relearn) – a rare-earth magnet works best.
- Tire pressure gauge – to verify pressures before and after relearn.
If you’re a DIYer, the OBD tool is a worthwhile investment if you plan to service multiple Cowin or Chery vehicles. For a one-off job, many tire shops can perform the relearn for a small fee.
Recommended Part
For Cowin owners replacing a failed sensor, the BL-ST-075 | BH-Sens 433MHz TPMS Tire Pressure Sensor | Fits Chery, Cowin, Jetour, Karry, Soueast | OE# F023114011, F113114011, F113114011BA is a direct fit. It is pre-programmed to match OE specifications (433MHz, clamp-in design) and works with Chery, Cowin, Jetour, Karry, and Soueast models. No additional coding is needed if you use an OBD relearn tool.
FAQ
Can I use any 433MHz sensor for my Cowin?
No. Cowin TPMS sensors communicate with a specific protocol. The BH-Sens BL-ST-075 is designed for the Chery/Cowin platform and is pre-programmed with the correct IDs. Generic 433MHz sensors may not trigger properly.
How often do I need to perform a TPMS relearn?
You only need a relearn when:
- A sensor is replaced (new sensor ID must be learned).
- Tires are rotated (sensor position changes).
- The TPMS module is replaced or reprogrammed.
- The battery in the sensor dies (sensor replacement required).
My TPMS light stays on after driving 20 minutes. What went wrong?
The auto relearn may have failed. This often happens if the sensors are new and not yet recognized by the ECU. Retry using an OBD relearn tool. Also confirm that all sensors are transmitting (activate them with a TPMS tool to check).
Can I reset the TPMS light without a tool?
On most Cowin models, the TPMS light requires a relearn to turn off. Simply pressing the reset button without completing the driving cycle or sensor training will not work. If auto relearn fails, you must use an OBD tool or visit a shop.