Understanding TPMS Relearn for Forthing
Forthing vehicles use direct TPMS sensors that transmit pressure data to the ECU. After installing new sensors—or after a tire rotation—the vehicle’s system needs to “relearn” each sensor’s unique ID to match its wheel position. Skipping this step means the TPMS light stays on, and you won’t get accurate pressure readings.
Forthing models typically support three relearn methods: auto relearn, OBD relearn, and stationary relearn. The correct method depends on your specific Forthing model year and equipment.
Step-by-Step Relearn Procedures
1. Auto Relearn (Drive-Based)
This method is available on most 2010+ Forthing models. It requires no tools but takes driving time.
- Ensure all tires are inflated to the correct pressure (check your door sticker).
- Start the engine and drive the vehicle above 30 mph (50 km/h) continuously for 10–20 minutes.
- The system automatically learns sensor IDs as the vehicle moves. The TPMS light should turn off after a successful relearn.
- Note: Auto relearn may fail if the vehicle has been stationary for too long or if a sensor signal is weak.
2. OBD Relearn (Tool Required)
This is the fastest and most reliable method for Forthing vehicles. You’ll need a TPMS programming tool that supports OBD relearn (e.g., Autel TS508, Bartec, or ATEQ).
- Connect the TPMS tool to the vehicle’s OBD-II port (usually under the dashboard).
- Select “Relearn” and then “OBD Relearn” from the tool menu.
- Follow the tool’s prompts—it will send the sensor IDs to the ECU.
- Once complete, start the engine and verify the TPMS light is off.
- Tip: Use pre-programmed sensors like the BL-ST-046 | BH-Sens 433MHz TPMS Tire Pressure Sensor | Fits Hongqi | OE# 3778080HA01 to skip the sensor programming step. This BH-Sens 433MHz sensor (OE 3778080HA01) fits Hongqi and many Forthing models, and it comes pre-programmed with the correct ID for plug-and-play installations.
3. Stationary Relearn (Magnet Method)
This method works on older Forthing models (pre-2015) and requires a strong TPMS magnet.
- Turn the ignition to ON (engine off).
- Hold the magnet near the valve stem of the left front tire until the horn beeps (or the hazard lights flash).
- Repeat for the right front, right rear, and left rear in that order.
- After the final horn beep, turn the ignition OFF and start the engine. The TPMS light should go out.
Fitment Table: BH-Sens BL-ST-046 Sensor Compatibility
| Vehicle Brand | Model | Year Range | Frequency | OE Number | Notes |
|---|---|---|---|---|---|
| Hongqi | H5, H7, E-HS9 | 2018–2024 | 433MHz | 3778080HA01 | Direct fit, clamp-in |
| Forthing | T5, S50, X5 | 2016–2023 | 433MHz | 3778080HA01 | Check compatibility via tool |
Always verify your vehicle’s TPMS sensor type (clamp-in vs. snap-in) before purchase.
Why Choose a Pre-Programmed Sensor?
Pre-programmed sensors like the BL-ST-046 | BH-Sens 433MHz TPMS Tire Pressure Sensor | Fits Hongqi | OE# 3778080HA01 save time and reduce error. They arrive with the correct 433MHz frequency and OE ID, so you can install them and proceed directly to the relearn step—no programming tool required. For Forthing owners, this means a 10-minute install instead of a 30-minute programming session.
FAQ
Can I use the auto relearn method if I replaced all four sensors?
Yes, auto relearn works for full sensor replacements as long as the sensors are transmitting. Drive the vehicle for 15–20 minutes at highway speeds. If the light stays on after 30 minutes, switch to OBD relearn.
My Forthing model is from 2018. Does it support stationary relearn with a magnet?
Most Forthing models after 2015 rely on auto or OBD relearn. The magnet method is primarily for older models. Check your owner’s manual or try the auto relearn first—if it fails, use an OBD tool.
What TPMS tool do I need for OBD relearn on Forthing?
Any TPMS tool that supports OBD relearn for Asian vehicles will work. Popular options include the Autel TS508 or the Bartec TPMS Tool. Ensure the tool has updated software for Forthing coverage.
How do I know if the BH-Sens BL-ST-046 sensor fits my Forthing?
Cross-reference your vehicle’s year and model with the fitment table above. For exact fitment, use a TPMS tool to read your original sensor’s OE number. If it matches 3778080HA01, the BL-ST-046 is a direct replacement.