Programming vs. Relearn — Know the Difference First
These two words get used interchangeably, and that causes most of the confusion.
- Programming (coding) writes a sensor ID into a blank or universal sensor. Only needed if you bought a blank sensor.
- Relearn (registration/ID learning) pushes that sensor’s ID into the vehicle’s TPMS module so the dashboard can read it.
A pre-programmed sensor like the BH-Sens BL-ST-057 arrives already coded at 433MHz for the Avatr platform. That eliminates the programming bench work — you install it, then relearn.
Tools You Actually Need
| Tool | Purpose | Notes |
|---|---|---|
| TPMS-capable scan tool | OBD relearn, reading live pressures | Autel MaxiTPMS, ATEQ VT series, Launch X431 with TPMS module |
| TPMS activation/trigger tool | Waking sensors, stationary relearn | Often built into the same scan tool |
| OBD-II interface or VCI cable | Communicates with the TPMS module | Match the brand your scan tool supports |
| Accurate tire gauge + air source | Setting pressures before relearn | TPMS logic ignores out-of-range pressures |
| Service information / owner’s manual | Correct placard pressure and relearn order | Never guess here |
One rule before anything else: set all four tires to the placard pressure on the driver’s door jamb. A relearn performed at the wrong pressure will often fail or store a false warning.
Which Relearn Method Applies to Your Avatr?
| Method | Tools Required | Typical Time | Best For |
|---|---|---|---|
| Auto relearn (drive cycle) | None beyond a gauge | 10–20 min of driving | New sensor installed, vehicle supports self-learning |
| OBD relearn | TPMS scan tool + OBD cable | 3–10 min | Most reliable; forced ID registration |
| Stationary relearn | Activation tool | 2–5 min per corner | Vehicles with a learn mode in the cluster menu |
Avatr models use a direct TPMS system with individual wheel sensors, so all three paths can show up depending on model year and software level. If one method won’t take, move down the list — OBD is the one that almost always works.
Method 1: Auto Relearn (Drive Cycle)
- Inflate all four tires to the correct placard pressure.
- Park, switch the ignition on (or power the vehicle up in READY mode), and let the TPMS light settle.
- Drive at roughly 25 mph / 40 km/h or above, on a route with a mix of straight sections and gentle turns, for 10–20 minutes.
- The vehicle’s receivers pick up each sensor’s RF transmission as the wheels rotate. The light should clear on its own.
As a technician, I only rely on auto relearn when the vehicle already had a working sensor in the same position. After rotating tires, it’s a coin flip — go OBD.
Method 2: OBD Relearn (Most Reliable)
- Connect your scan tool to the OBD-II port and select the TPMS or body/chassis menu for the vehicle.
- Choose the “relearn / ID registration / sensor learn” function.
- Follow the on-screen corner order — the tool will prompt LF, RF, RR, LR (or a different sequence; follow the tool, not habit).
- Trigger each sensor with the activation tool when prompted, or let the tool read IDs it already has.
- Confirm the stored IDs, then clear any TPMS DTCs.
- Recheck live pressures on the scan tool against a hand gauge — they should match within a small margin.
Method 3: Stationary Relearn
- Confirm correct pressures and that the vehicle is stationary with the ignition on.
- Enter the TPMS learn mode via the scan tool or the cluster menu, if available.
- Hold the activation tool against the sidewall near the valve stem of the prompted wheel until the vehicle confirms (horn chirp or turn-signal flash).
- Repeat in the exact order the vehicle requests.
- Exit learn mode and verify the light is off.
Sensor Specs: BH-Sens BL-ST-057
| Field | Specification |
|---|---|
| Brand | BH-Sens (Baolong Technology) |
| Frequency | 433 MHz |
| Type | Clamp-in, pre-programmed |
| OE references | 3601010CD01, 3601010DG01, 3601010MK02, 3601010MK02ED01 |
| Fits | Avatr, Changan, Deepal, Mazda, Nevo and others on the same platform |
| Relearn required after install | Yes — programming not required |
Because the sensor is pre-programmed, the only steps after mounting are inflation and relearn. Torque the clamp-in stem nut to the figure listed in your service information — clamp-in stems are easy to overtighten and a stretched seal is a slow leak you’ll chase for weeks.
Common Mistakes That Cause Failed Relears
- Relearning without first correcting tire pressures.
- Triggering sensors in the wrong corner order.
- Using a 315MHz tool or sensor on a 433MHz vehicle (or the reverse).
- Reusing a metal clamp-in stem and old rubber grommet instead of the new hardware that ships with the sensor.
- Assuming the TPMS warning is a sensor fault when it’s actually a dead 12V battery or a module communication issue.
If two consecutive relearn attempts fail on the same corner, swap that sensor to another wheel. If the fault follows the sensor, it’s the part. If it stays with the corner, it’s the vehicle’s receiver or wiring.
Recommended Part
For Avatr, Changan, Deepal, Mazda and Nevo applications running 433MHz direct TPMS, the BH-Sens BL-ST-057 clamp-in sensor covers OE references 3601010CD01, 3601010DG01, 3601010MK02 and 3601010MK02ED01, arrives pre-programmed, and needs only a standard relearn: BL-ST-057 | BH-Sens 433MHz TPMS Tire Pressure Sensor | Fits Avatr, Changan, Deepal, Mazda, Nevo & 1 More | OE# 3601010CD01, 3601010DG01, 3601010MK02
FAQ
Do I need to program a new TPMS sensor for my Avatr?
Not if you buy a pre-programmed unit. Programming only applies to blank/universal sensors where the ID or protocol must be written in. A pre-programmed 433MHz sensor such as the BL-ST-057 skips that step — install it, set pressures, and run a relearn.
How long does an Avatr TPMS relearn take?
An OBD relearn usually takes a few minutes once the scan tool is connected and the correct menu is selected. Auto relearn takes longer because it depends on a drive cycle, typically 10–20 minutes of steady driving above roughly 25 mph / 40 km/h.
Can I relearn TPMS without a scan tool?
Sometimes. If your vehicle supports auto relearn, correct pressures plus a drive cycle is enough. Stationary relearn needs an activation tool, and OBD relearn needs a TPMS-capable scan tool. When in doubt, the OBD route is the fastest way to a confirmed result.
Why is my TPMS light still on after installing new sensors?
Check pressures first, then confirm the sensor frequency matches the vehicle (433MHz for these platforms), then verify the IDs were actually stored. A relearn that was never completed, a wrong corner order, or an unseated clamp-in stem seal are the usual culprits.