Q: What's the difference between the 2 menus: HD OBD & WWH OBD

1. HD OBD: All system diagnosis for heavy/medium-duty trucks using SAE J1939, J1708, or J1587 protocols; 2. WWH OBD: Engine system diagnosis for trucks with other protocols (CAN、KWP2000、ISO9141-2)

Q: How do I use the HD601 to read and clear fault codes, and which systems can it access?

First, confirm compatibility and select the menu per the protocol to view available systems. Physical faults must be resolved first; error codes cannot be cleared while a fault persists. The HD601 cannot fix faults directly.

Is the HD601 easy to use for someone without professional diagnostic experience?

Yes, HD601 is designed with user-friendly navigation and a simple interface, making it suitable for users without professional diagnostic experience.

How do I update the HD601’s software, and is it free?

Software updates: easy via included USB cable. Connect to computer, download latest updates from ANCEL’s site, follow prompts. All updates free for life; keeps tool compatible with new vehicles/protocols.

Does the HD601 support real-time data monitoring for trucks?

Yes, it offers real-time data streaming for key parameters like engine RPM, coolant temperature, fuel pressure, and more. This helps in troubleshooting intermittent issues or monitoring vehicle performance while driving .

Manufacturer	ANCEL
Brand	ANCEL
Product Dimensions	16.5 x 3.3 x 9.7 cm; 890 g
Item part number	HD601 PRO
Manufacturer Part Number	HD601 PRO
Colour	HD601
Assembly Required	No
Manufacturer	ANCEL
Country of Origin	USA
Item Weight	890 g

ANCEL Heavy Duty Truck Scanner HD601 All System Diesel Diagnostic Scan Tool fits for Cummins, Detroit, Freightliner, International, Paccar, Check Engine for Truck & Car 2 in 1 Code Reader

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