JalTool Street Sweeper Diagnostic Tool for Engine, Hydraulic and Sweeping System Faults
Modern street sweepers use diesel engine management, hydraulic controls, brush motors, suction fans, water pumps, hopper systems and electronic safety controls. When a sweeper loses suction, the brushes stop rotating or the machine shows several warning codes, the problem may be electronic, hydraulic, mechanical or related to CAN communication.
The JalTool Street Sweeper Diagnostic Tool helps municipal workshops, fleet maintenance teams and mobile technicians diagnose supported road cleaning equipment through a structured scan, test and verification process.
Common Street Sweeper Fault Symptoms
- Main or side brushes do not rotate correctly
- Suction fan loses speed or stops working
- Hydraulic brush pressure becomes weak
- Water spray or dust suppression functions fail
- Hopper lifting or unloading operates slowly
- Engine enters reduced-power mode
- Operator display shows communication warnings
- DPF, SCR, AdBlue or NOx fault codes appear
These symptoms may be caused by sensors, solenoids, hydraulic valves, pump problems, wiring, control modules or mechanical wear. A professional diagnostic scanner helps technicians identify the system requiring further inspection.
What Can JalTool Check on a Supported Street Sweeper?
Available functions depend on the manufacturer, model, production year, engine, ECU and installed system. On supported street sweepers, JalTool may provide access to the following areas:
| System | Possible Diagnostic Functions |
|---|---|
| Engine ECU | Read supported fault codes, view live data and identify engine-control information |
| Brush and broom system | Inspect supported motors, valves, sensors and control commands |
| Suction fan system | Review supported fan-speed signals, controller data and actuator faults |
| Water spray system | Check supported pumps, valves, switches and electronic controls |
| Hopper and hydraulic system | Inspect supported pressure, temperature, lifting and unloading functions |
| Aftertreatment system | Diagnose supported DPF, SCR, AdBlue and NOx-related systems |
| Service functions | Perform supported calibrations, resets, adaptations and adjustments |
Not every function is available on every machine. Confirm the exact equipment details through the JalTool Vehicle Coverage page before purchasing.
Recommended JalTool Street Sweeper Diagnostic Workflow
1. Record the Machine Details
Prepare the manufacturer, exact model, serial number, production year, engine model and diagnostic connector details. Note whether the problem occurs during sweeping, suction, brush operation, water spraying, hopper unloading or road travel.
2. Inspect Power and Wiring
Check battery voltage, fuses, grounds, connectors and visible harness damage. Dust, water, road salt, debris and vibration can damage wiring or create unstable communication between control modules.
3. Perform a Full Supported System Scan
Connect the JalTool Diagnostic Scanner and scan all available electronic systems. Save active and stored fault codes before clearing them. Compare engine, brush, suction, water and hydraulic-controller codes to identify related faults.
4. Review Live Data
Use supported live data to compare engine speed, fan speed, brush speed, hydraulic pressure, water-pump status, hopper position, sensor voltages and controller commands. A value that does not match actual machine operation should be tested further.
5. Perform Supported Actuator Tests
Where available, actuator tests can help verify brush motors, hydraulic valves, water pumps, relays and other electronically controlled components. Secure the sweeper before testing and follow the manufacturer’s safety instructions. Keep personnel away from brushes, suction fans, hopper mechanisms and moving hydraulic components.
6. Repair, Calibrate and Verify
After repairing wiring, replacing a sensor or correcting a hydraulic issue, complete any supported calibration or adjustment. Clear fault codes only after the repair, then perform another scan and save a diagnostic report.
Choosing a JalTool Package for Street Sweepers
Workshops that service street sweepers together with construction machinery, agricultural equipment and commercial vehicles can review the JalTool Professional Package.
Businesses that work with several equipment categories can review the JalTool Complete Diagnostic Package for broader supported coverage.
Workshops focused mainly on trucks and commercial vehicles can consider the Commercial Vehicle Package. The diagnostic interface and connection hardware are available through the JalTool Diagnostic Scanner hardware page.
Confirm Compatibility Before Ordering
A manufacturer name alone does not confirm support for every street sweeper, brush controller, suction fan system or engine. Send the exact model, year, engine, ECU and required function, such as live-data testing, actuator testing, calibration or emissions diagnosis.
For compatibility and package assistance, contact support@jaltool.com or WhatsApp at +84 908 532 146.
Purchase from an Authorized JalTool Source
Before paying for hardware or software activation, verify the seller through the JalTool Authorized Dealer Verification page. Businesses interested in distribution can visit the JalTool Dealer Program.
Important Compatibility Notice
JalTool is an independent diagnostic product and is not affiliated with, sponsored by or endorsed by Cojali or Jaltest. Diagnostic coverage and available functions depend on the manufacturer, model, production year, engine, ECU, installed system and supported procedure. Always confirm compatibility and follow the street sweeper manufacturer’s safety instructions before testing.