Shandong Shengyue Technology Development Co.,Ltd is one of the most professional faw j6/j6p/j5 truck speedometer sensor 3802020-76a/b manufacturers and suppliers in China. Please feel free to buy high quality genuine auto parts at competitive price from our factory.
FAW J6/J6P/J5 TRUCK Speedometer Sensor 3802020-76A/B
FUNCTION
1. Real-time Vehicle Speed Detection and Calculation: Detects the rotational speed of the transmission output shaft to precisely calculate the vehicle's actual driving speed.
2. Odometer Signal Source: Provides a continuous stream of speed pulses used for accumulating and recording total travel mileage. The instrument cluster relies directly on this signal to display both total mileage and trip mileage.
3. Multi-System Integrated Control Support: Transmits speed signals to the vehicle's ECU to facilitate various functions, including automatic transmission shift logic, engine idle speed control, torque converter lock-up, cruise control, engine cooling fan activation/deactivation, speed limiter functions, and ABS coordination.
4. Fault Diagnosis and Safety Protection: Outputs a stable signal to facilitate data acquisition by the OBD system (addressing common fault codes in the P0500/P0501 series, which indicate speed sensor circuit or signal anomalies). In the event of sensor failure, the ECU can engage a "Limp-home" mode to mitigate the risk of vehicle loss of control.
Advantages
| Aspect | Performance Advantage Description | Benefit in Heavy Truck Use (e.g., FAW J6) |
|---|---|---|
| Accuracy & Precision | High-precision electronic pulse output (e.g., 8 pulses/rev), low error rate (<2%) | Accurate real-time speed/ mileage display, reliable for OBD logging and compliance |
| Response Speed | Instantaneous signal response with no mechanical lag | Faster updates for acceleration, cruise control activation, and gear logic |
| Durability & Reliability | Metal housing + sealed design, resistant to vibration, oil, dust, high/low temperatures | Long service life (20–50万 km common), fewer failures in harsh road/ work conditions |
| No Mechanical Wear | Electronic (Hall/inductive) vs. mechanical cable/gear drive-no moving parts to wear out | Reduced maintenance needs, no cable breakage or calibration drift over time |
| Multi-System Integration | Provides stable signal to ECU, ABS, cruise control, engine fan, torque converter lock-up | Enables advanced features like precise speed limiting, smooth shifting, safety systems |
| Diagnostic Capability | Easy fault detection via OBD codes (e.g., P0500/P0501 series) | Quick troubleshooting, minimizes downtime; Limp-home mode for safety |
| Signal Stability | Clean square wave output, less interference in noisy electrical environments | Consistent performance for ABS coordination and anti-tampering mileage recording |
DETAILS
| DESCRIPTION | Speedometer Sensor | PART NUMBER | 3802020-76A/B |
| WEIGHT |
0.4KG |
VOLUME |
L=50mm D=20mm |
| TRUCK MOLDE | SINOTRUK | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | GEARBOX |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
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