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The AZ900036000003 Trailer Control Module is a premium, heavy-duty chassis electrical component engineered specifically for SINOTRUK Howo trucks, delivering reliable control and communication between the tractor and trailer for braking, lighting and auxiliary functions. As a trusted supplier of genuine Sinotruk howo parts, we offer this OEM-grade trailer control module as a direct replacement for the original factory unit. The AZ900036000003 module ensures correct signal processing, stable CAN bus communication and dependable operation on Howo A7, T7H, HOWO 371 and HOWO 380 models.
Manufactured from high-strength engineering plastics, corrosion-resistant electrical contacts and sealed connectors, the AZ900036000003 Trailer Control Module is built to exact OEM dimensions. Its robust construction maintains correct voltage output, resists vibration, dust, moisture and temperature extremes, and provides dependable performance under the constant electrical loads of commercial truck operation.
OEM AZ900036000003 • Trailer communication • Sealed connectors • Vibration resistant • Direct OEM fit
The AZ900036000003 Trailer Control Module is a critical electronic interface in the chassis system of SINOTRUK Howo trucks. It manages the electrical communication between the tractor and trailer, controlling brake lights, turn signals, marker lamps, ABS/EBS signals and auxiliary power supply through a standardised connection.
This AZ900036000003 module is precision-manufactured to exact OEM dimensions. The circuit board is populated with high-quality components, the connectors are sealed against dust and moisture, and the housing is designed for a secure fit on the chassis. The unit is tested for correct signal output and reliable trailer communication.
Common signs that a trailer control module needs replacement include trailer lights not working, ABS/EBS warning lamps on the trailer, loss of communication with the trailer, intermittent electrical faults, blown fuses and stored fault codes in the tractor ECU. Fitting a new AZ900036000003 module restores correct trailer electrical function and road safety.
Whether you are repairing a faulty trailer circuit, replacing a damaged module or carrying out preventive maintenance on a fleet of Howo trucks, the AZ900036000003 Trailer Control Module delivers the quality, reliability and durability that SINOTRUK Howo professionals expect.
The AZ900036000003 Trailer Control Module is designed for SINOTRUK Howo trucks, with primary compatibility across the A7, T7H, HOWO 371 and HOWO 380 series. It is a direct OE replacement, so it plugs into the factory harness and mounts in the original chassis location without modification.
This module is essential in applications where reliable trailer connection and road safety are critical, such as long-haul transport, construction, mining and municipal service. In these duties, the module must maintain stable power and signal transmission and resist vibration, dust, heat and moisture.
When replacing the trailer control module, it is recommended to inspect the trailer socket, wiring harness, fuse, relay and trailer ABS/EBS system for wear or damage. The AZ900036000003 is designed to work with the factory electrical system, ensuring correct signal timing and reliable operation.
For fleets with multiple HOWO trucks, standardising on the AZ900036000003 Trailer Control Module simplifies electrical repair inventory and ensures the correct module is available for scheduled maintenance or emergency repairs.
Replacing the AZ900036000003 Trailer Control Module is a moderately simple procedure that requires basic electrical knowledge and hand tools. This work should be performed by a qualified technician. Begin by disconnecting the battery negative terminal to prevent accidental short circuits.
Locate the trailer control module on the chassis, usually near the rear crossmember or trailer socket. Disconnect the multi-pin connector from the old module, taking note of any locking tabs. Remove the mounting screws or release the clip holding the module in place. Inspect the connector pins for corrosion or damage.
Position the new AZ900036000003 module in the mounting bracket and secure it with the original hardware. Reconnect the multi-pin connector until it clicks into place. Reconnect the battery and clear any fault codes using a diagnostic tool. Test the trailer functions: brake lights, turn signals, marker lamps and ABS/EBS communication.
For ongoing maintenance, periodically check that the module is securely mounted and that the connector is free from moisture or dirt. If trailer functions become intermittent, inspect the trailer socket and wiring before replacing the module again.
The AZ900036000003 Trailer Control Module is manufactured in an ISO 9001-certified facility using advanced electronics assembly and testing processes. Components are sourced from certified suppliers and undergo incoming inspection for electrical characteristics, solderability and mechanical fit.
Each module is assembled on automated lines and then tested for relay function, signal timing and current draw. The housing is inspected for correct fit and finish, and the connector is checked for pin alignment and retention. Every unit is subjected to a functional test that simulates trailer load conditions.
Random samples from each production batch undergo environmental testing, including thermal cycling, humidity exposure and vibration, to validate long-term reliability in heavy-duty truck applications. These tests ensure the module continues to perform in the harsh conditions experienced by SINOTRUK Howo vehicles.
We back the AZ900036000003 with a comprehensive 12-month warranty against material and workmanship defects. Our rigorous quality control ensures that every trailer control module delivers the same fit, function and durability as the original factory component.
The AZ900036000003 Trailer Control Module is a vital component for maintaining reliable trailer electrical connections, road safety and driver confidence on your Howo truck. A faulty module causes trailer light failure, loss of ABS communication and potential accidents, especially at night or in poor weather.
Manufactured from high-quality materials with sealed connectors and robust electronics, the AZ900036000003 offers outstanding reliability, moisture resistance and long-term durability. Its plug-and-play design ensures straightforward installation and immediate compatibility with the factory trailer system.
Fleet operators benefit from reduced electrical downtime, lower maintenance costs and improved vehicle safety. Owner-operators gain peace of mind knowing their trailer connection is controlled by a module that meets strict OEM standards and is backed by a comprehensive warranty.
Order the AZ900036000003 Trailer Control Module today and keep your SINOTRUK Howo and trailer connected safely for years to come.
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