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09-vision Central control system – HOWO A7 8X4 Complete Parts

09-vision Central control system – HOWO A7 8X4 Complete Parts Guide

The 09-vision Central control system is the comprehensive electronic control and switching hub for the HOWO A7 8X4. This extensive parts list covers every switch, relay, bracket, box, clip, and fastener needed for the dashboard, ECU, and electrical distribution.

Components include the No-load switch, Diagnose interface, Lamp switch, Fog lamp switch, Rear Fog lamp switch, Dangerous warning lamp switch, Horn switch, wheel differential switch, Axle differential lock switch, ECU Diagnose switch, MCS switch,

Cover plate, Combination switch, Cruise Combination switch, Cigar lighter, Wire harness fixing clip, ECU installation box, Hex bolt, Flat washer, Spring washer, 1 shape Hexagonal nut, engine ECU installation strut, Cross hollow self tapping screw, Cross screw,

Wire connector box assembly, Wire connector box, Screw, Relay(40A), Idling regulator, and Idling regulator installation. When you choose genuine howo Parts, you ensure that every control and protection function operates at peak reliability.

No-load switch

The No-load switch is used to activate the engine’s no-load idle mode, reducing fuel consumption during stationary periods. It is a momentary push-button type.

This switch is available in two variants (standard and Suzhou Electric). It is mounted on the dashboard for easy driver access.

Diagnose interface

The Diagnose interface is a diagnostic port that allows external scan tools to communicate with the central control unit. It is essential for troubleshooting.

Both standard and Suzhou Electric versions are available, ensuring compatibility with different diagnostic equipment.

Lamp switch

The Lamp switch controls the main headlights, parking lights, and instrument panel illumination. It is a multi-position rotary switch.

This switch is offered in standard and Suzhou Electric variants, both with durable contacts for long service life.

Fog lamp switch

The Fog lamp switch activates the front fog lights, improving visibility in adverse weather. It is a push-button switch with an indicator light.

Standard and Suzhou Electric versions are available, both featuring a waterproof design for harsh conditions.

Rear Fog lamp switch

The Rear Fog lamp switch controls the high-intensity rear fog lights, alerting following drivers in low-visibility conditions. It is a similar push-button unit.

Variants include standard, Suzhou Electric, and Kaifeng Electronic, ensuring availability across different supply chains.

Dangerous warning lamp switch

This switch activates the hazard warning lights, flashing all turn signals simultaneously. It is a red, oversized button for emergency use.

Available in standard and Suzhou Electric versions, it meets international safety standards.

Horn switch

The Horn switch is a momentary contact button that sounds the vehicle’s horn. It is typically located on the steering wheel or dashboard.

Standard and Suzhou Electric variants are offered, both with a positive tactile feel.

wheel differential switch

This switch engages the wheel differential lock, improving traction on slippery surfaces. It is a two-position toggle switch.

Standard and Suzhou Electric versions are available, both with a robust locking mechanism.

Axle differential lock switch

The Axle differential lock switch activates the inter-axle lock, providing maximum traction for off-road or heavy-load conditions. It is a durable push-button.

This switch comes in standard and Suzhou Electric variants, both tested for heavy-duty use.

ECU Diagnose switch

The ECU Diagnose switch is a service-only switch that puts the ECU into diagnostic mode, allowing technicians to read fault codes and perform calibrations.

It is available in standard and Suzhou Electric forms, each with a protective cover to prevent accidental activation.

MCS switch

The MCS switch (Modular Control System) is a rotary knob used to select between different driving modes or auxiliary functions. It is a multi-position selector.

Variants include standard and Yaan Xiaohang versions, both offering precise detents.

Cover plate

The Cover plate is a trim piece that conceals unused switch openings or wiring. It gives the dashboard a clean, finished appearance.

Standard and Suzhou Automotive versions are available, each with a snap-fit design.

Combination switch (steering column)

The Combination switch integrates turn signal, wiper, and headlight controls into one stalk on the steering column. It is ergonomically designed.

Versions include standard and Huayang, both with self-canceling turn signals.

Cruise Combination switch

This switch assembly enables cruise control functions: set, resume, and speed adjustment. It is located on the steering wheel or column.

Standard and Nanjing Shuanghuan versions are offered, with tactile buttons for intuitive use.

Cigar lighter (24V)

The Cigar lighter provides a 24V power outlet for auxiliary devices. It includes a heating element for lighting cigarettes.

Standard and variant versions are available, both with a protective cap.

Wire harness fixing clip

The Wire harness fixing clip securely bundles and routes wiring looms, preventing chafing and disorganization. It is made of flexible plastic.

Standard and bent versions are available to accommodate different routing paths.

ECU installation box

The ECU installation box is a protective enclosure that houses the engine control unit. It shields the ECU from dust, moisture, and physical impact.

Standard and bent versions are available for different mounting orientations.

Hex bolt

The Hex bolt is a common fastener used throughout the assembly. It has a hexagonal head for torque application with standard wrenches.

These bolts are available in various sizes and grades, ensuring secure attachment of brackets and boxes.

Flat washer

The Flat washer distributes the load under bolt heads and nuts, protecting surfaces from indentation. It also helps maintain clamping force.

These washers are used in multiple sizes (M5, M6, M8) throughout the central control system.

Spring washer

The Spring washer provides a locking action under bolt heads, preventing loosening due to vibration. It is a split-ring design.

These are used in conjunction with flat washers for critical joints in the ECU and relay mounting.

1 shape Hexagonal nut

The 1 shape Hexagonal nut is a standard hex nut (type 1) used with bolts to create a threaded joint. It is made of carbon steel.

These nuts are used in sizes M8 and others, providing reliable fastening for the installation struts and boxes.

engine ECU installation strut

The engine ECU installation strut is a metal bracket that supports the ECU box. It is designed to absorb vibration and maintain alignment.

Standard and bent versions are available, allowing flexibility in mounting positions.

Cross hollow self tapping screw

This screw forms its own threads when driven into plastic or sheet metal. It is used for attaching covers and switches without pre-tapping.

The cross recess (Phillips) allows for easy driving with a standard screwdriver.

Cross screw (pan head)

The Cross screw is a machine screw with a Phillips drive, used for fastening components to threaded holes. It is available in various lengths.

These screws are commonly used for the electrical junction boxes and cover plates.

Wire connector box assembly

The Wire connector box assembly is a central distribution point for electrical connections. It houses multiple relays and fuses.

Variants include standard and Nanjing Wanzao, both offering modular slots for easy wiring.

Wire connector box (sub-assembly)

This is the core junction box without the cover, used for internal wiring. It is designed for quick wire insertion and retention.

The Nanjing Wanzao version is optimized for high-volume production.

Screw (pan head)

This general-purpose screw is used for securing lightweight covers and panels. It has a pan head with a Phillips drive.

It is available in M6 size with various lengths.

Relay(40A)

The Relay(40A) is a normally-open electromechanical relay rated for 40 amperes. It is used to control high-current loads like lighting and fans.

Multiple variants are available, including standard and Tyco versions, ensuring compatibility with different sockets.

Idling regulator

The Idling regulator is an electronic module that controls the engine idle speed under various conditions. It ensures smooth and stable idling.

Nanjing Shuanghuan versions are offered, with built-in temperature compensation.

Idling regulator installation bracket

This is the mounting bracket specifically designed for the idling regulator. It positions the regulator securely and provides vibration isolation.

The bracket is included as a separate part (A297295580018) for complete installation.

09-vision Central control system

09-vision Central control system – Full electronic control suite for HOWO A7 8X4

Product Parameters of 09-vision Central control system

Part NO. Description
A29719580207仪表台安装柜 (not listed in English, skip)
WG9719582037No-load switch
WG9721958023/1No-load switch
WG9725580025Diagnose interface
WG9725580025/1Diagnose interface
WG9719584011Lamp switch
WG9719584011/1Lamp switch
WG9719584012Fog lamp switch
WG9719584012/1Fog lamp switch
WG9719584013Rear Fog lamp switch
WG9719584013/3Rear Fog lamp switch
WG9719584004Dangerous warning lamp switch
WG9719584004/1Dangerous warning lamp switch
WG9719584015Horn switch
WG9719584015/1Horn switch
WG9719582011wheel differential switch
WG9719582011/1wheel differential switch
WG9719582012Axle differential lock switch
WG9719582012/1Axle differential lock switch
WG9719582020ECU Diagnose switch
WG9719582020/1ECU Diagnose switch
WG9719582054MCS switch
WG9719582054/1MCS switch
WG9900580021Cover plate
WG9900580021/1Cover plate
WG9130583117Combination switch
WG9130583117/2Combination switch
WG9725584009Cruise Combination switch
WG9725584009/2Cruise Combination switch
WG9100580142Cigar lighter
WG9100580142/1Cigar lighter
WG9725584026Wire harness fixing clip
WG9725584026/1Wire harness fixing clip
WG9725584029ECU installation box
WG9725584029/1ECU installation box
Q15090825Hex bolt
Q40108Flat washer
Q40308Spring washer
Q3409081 shape Hexagonal nut
WG9725584028engine ECU installation strut
WG9725584028/1engine ECU installation strut
Q2714216F31Cross hollow self tapping screw
Q2140512Cross screw
Q40105Flat washer
Q40305Spring washer
WG9716580021Wire connector box assembly
WG9716580021/2Wire connector box assembly
WG9716580022/2Wire connector box
Q2140635Screw
Q40106Flat washer
Q2140610Cross screw
Q2140610Cross screw
Q40105Flat washer
WG9725584001Relay(40A)
WG9725584001/1Relay(40A)
WG9725584002Relay(40A)
WG9725584002/1Relay(40A)
WG9725584011Idling regulator
WG9725584011/3Idling regulator
A297295580018Idling regulator installation

Why Choose Our 09-vision Central control system?

Our 09-vision Central control system covers every electrical interface with genuine or equivalent quality parts. From switches to relays, each component is tested for voltage drop and contact resistance, ensuring reliable signaling.

All fasteners (bolts, washers, nuts, screws) are zinc-plated for corrosion resistance, ensuring long-term durability even in humid or salty environments. This reduces maintenance frequency.

The modular design allows easy replacement of individual switches or relays without disassembling the entire dashboard. This saves labor time and reduces downtime.

Our components are sourced from trusted suppliers including Tyco, Suzhou Electric, and Nanjing Shuanghuan, ensuring consistent quality. Choose our 09-vision Central control system for a complete, worry-free solution.

Installation and Wiring Best Practices

When installing the 09-vision Central control system, start by securing the ECU installation box and the wire connector box assembly using the provided hex bolts, flat washers, spring washers, and 1 shape hexagonal nuts. Ensure all fasteners are torqued to factory specifications.

Route wiring harnesses neatly using the wire harness fixing clips. Use the bent clips where clearance is tight. Avoid sharp edges that could chafe the insulation.

For switch installation, insert the appropriate switch into the dashboard cutouts and secure with the cross hollow self tapping screws or cross screws as indicated. Always use the correct size flat and spring washers under each screw head.

Connect the relays (40A) into their designated sockets, ensuring a firm click. The idling regulator should be mounted using its dedicated installation bracket (A297295580018) and secured with the provided bolts and nuts.

After assembly, perform a functional test of every switch and indicator. Verify that the cruise combination switch, MCS switch, and diagnostic interface operate correctly. Use a multimeter to check for proper continuity and voltage at each relay output.

Regular maintenance should include periodic tightening of all fasteners, as vibration can cause loosening over time. Inspect the wire harness fixing clips for signs of wear and replace any damaged clips immediately.

Compatibility and Cross-Reference

The 09-vision Central control system is designed for the HOWO A7 8X4 but many components are shared with other heavy truck models. The relays (40A) are standard ISO mini relays, interchangeable with other brands.

Switches such as the lamp switch, fog lamp switch, and horn switch have standardized mounting footprints, making them compatible with many aftermarket panels.

However, the ECU installation box and the engine ECU installation strut are vehicle-specific. Always verify part numbers when ordering replacements.

For the idling regulator, different variants (standard vs. Nanjing Shuanghuan) may have different pinouts, so confirm compatibility with your existing ECU.

Advantages of a Complete Central Control System

Having a fully stocked 09-vision Central control system ensures that every electrical function is at your fingertips. From lighting to differential locks, every switch is ergonomically placed.

The diagnostic interface allows quick fault reading, saving hours of troubleshooting. The cruise combination switch enhances driver comfort on long hauls.

Reliable relays and fuses protect against electrical overloads, preventing fire hazards and component failures. The idling regulator helps maintain stable engine RPM, reducing emissions and fuel consumption.

For fleet owners, standardizing on this system simplifies spare parts inventory. With cross-referenced part numbers, you can quickly order exact replacements.

Moreover, the modular nature means you can upgrade individual switches or relays as new technologies emerge, without changing the entire wiring harness.

Finally, the peace of mind that comes from knowing your control system is built with high-quality components is invaluable. Trust our 09-vision Central control system to keep your HOWO A7 8X4 operating at its best.

Online Catalog of SINOTRUK Parts

Learn More

Our online catalog provides comprehensive access to genuine SINOTRUK parts for all major vehicle lines — including HOWO, Sitrak, Steyr, and Yellow River series trucks. You can browse detailed specifications, original part numbers, and exploded-view diagrams for every assembly. Whether you are performing routine maintenance or planning a major overhaul, the catalog helps you quickly identify the correct components for your vehicle. When you become a SINOTRUK customer, we offer complimentary full‑access catalog services, ensuring you always have the latest product data and interchangeability information at your fingertips to support efficient fleet management and accurate parts ordering.

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