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HOWO T7H ECAS control harness WG9925775102, this is howo control harness used for T7H truck and Sitrak C7H truck.Connect with ECAS control box WG9925585110.
FUNCTION
1. Connection and Signal Transmission: As a key connection harness for the ECAS (Electronic Controlled Air Suspension) system, it connects the ECAS control box to the cab remote control module, remote control interface, or central control unit, enabling power supply and multi-channel signal transmission.
2. Supports Suspension Height Adjustment: Transmits commands issued by the driver via remote control or cab switch, allowing the ECAS system to adjust the height, stiffness, and balance of the trailer/axle air suspension in real time, achieving: automatic leveling under no-load/heavy-load conditions, manual vehicle height adjustment, and dynamic adaptive control.
3. Integrated Multi-Signal Channels: Includes power lines, CAN bus communication lines, and sensor feedback lines (height sensor, pressure sensor, vehicle speed signal, etc.), ensuring the ECAS system collects data and executes control commands in real time.
4. Fault Diagnosis and Compatibility: Supports OBD interface reading of ECAS system fault codes, facilitating rapid problem location during maintenance.
5. Electrical protection and durability: It adopts automotive-grade waterproof connectors, shielded wire cores + high-temperature resistant sheaths to prevent electromagnetic interference, short circuits, water ingress, and vibration-induced wire breakage, ensuring long-term reliable operation in dusty, vibrating, rainy and snowy environments of heavy trucks.
Advantages:
1. Excellent signal transmission reliability and stability: Multi-core shielded cable design + high-precision waterproof connectors effectively shield electromagnetic interference, ensuring distortion-free and delay-free CAN bus signals, power supply, and sensor feedback. Fast transmission response and high height adjustment accuracy.
2. Strong durability and environmental adaptability: Automotive-grade PVC/TPU sheath + oil-resistant, high-temperature-resistant, and low-temperature-resistant materials, vibration-resistant, tensile-resistant, aging-resistant, and chemical corrosion-resistant. Suitable for dusty, rainy, saline, and bumpy road conditions, with a long service life (typically 300,000–500,000 kilometers or 4–6 years); more durable than ordinary maintenance wiring harnesses, less prone to core breakage, water ingress, and short circuits.
DETAILS
| DESCRIPTION | Ecas Control Harness | PART NUMBER | WG9925775102 |
| WEIGHT |
0.5KG |
VOLUME |
30 × 20 × 10 cm |
| 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 | CABIN |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
Maintenance Schedule (Recommended Reference) for WG9925775102 (ECAS Remote Control Harness)
| Maintenance Item | Recommended Interval | Operation Content & Standards |
|---|---|---|
| Daily Visual Inspection | Before each departure / Daily | Inspect the harness sheath for damage, wear, cracking, connector looseness, oxidation, or oil contamination; confirm no obvious pulling, pinching, or rubbing marks; observe if the ECAS dashboard warning light is abnormally illuminated |
| Connector & Mounting Point Check | Every 10,000–20,000 km | Check waterproof connectors (Deutsch / aviation plugs) for secure fit and no signs of water ingress or corrosion; verify harness clips / zip ties are intact and the harness does not contact heat sources, sharp edges, or moving parts (e.g., driveshaft) |
| Functional Test | Every 20,000–30,000 km or quarterly | Use the remote control / cab switches to test ECAS raise/lower and leveling functions for normal response; check for delay, failure, or dashboard warnings; after vehicle start-up, confirm the ECAS system enters normal operating mode |
| Cleaning & Protective Inspection | Every 3–6 months or after rain/snow/mud roads | Wipe the harness surface with a soft cloth or neutral cleaner to remove oil, mud, salt, and debris; inspect sheath for aging (whitening/brittleness); confirm waterproof tape / heat-shrink tubing is intact |
| Comprehensive Electrical Check (incl. fault code reading) | Every 50,000–100,000 km or during ECAS system maintenance | Use a diagnostic tool (via OBD port) to read ECAS fault codes (e.g., harness open circuit, short circuit, communication failure, sensor feedback loss); inspect harness cores for poor soldering, breakage, or insulation breakdown |
| Preventive Replacement | 300,000–500,000 km or 4–6 years | Replace the entire harness proactively regardless of visible damage, especially when reaching service life or showing: severe sheath aging, connector corrosion, functional failure, or fault codes pointing to the harness |
DETAILES PHOTO:
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