The Pocket Iq 2 Scan Tool initially seemed like the ultimate handheld diagnostic solution. Compact and powerful, it promised comprehensive vehicle analysis. However, real-world use revealed some significant limitations. My experience using this tool on a recent job involving a Mack truck highlights both its potential and its shortcomings.
This particular truck presented with multiple warning lights: an electronic malfunction light, a red shutdown light, and a flashing regeneration light. Additionally, the engine exhibited a prolonged crank time. Using the Pocket IQ 2, I quickly retrieved a crank sensor fault code. Confidently, I replaced the sensor and cleared the codes. The truck started flawlessly, providing a brief moment of relief.
Unfortunately, this success was short-lived. The warning lights reappeared immediately. Attempts to diagnose the recurring issue with the Pocket IQ 2 proved futile. The tool was unable to provide further insight due to what seemed to be compatibility issues with the truck’s emissions system—specifically, its inability to access the ACM and VECU modules via the J1939 connection. It couldn’t even force a DPF regeneration, a crucial function for addressing exhaust issues common in older Mack trucks.
This limitation rendered the Pocket IQ 2 ineffective for this specific task. Ultimately, I had to resort to using a different, more powerful scan tool (a PTT) to diagnose and resolve the problem. While the Pocket IQ 2 successfully identified the initial crank sensor fault, its inability to handle emissions-related diagnostics on this particular truck model significantly hampered its usefulness.
In a busy concrete yard with a fleet of over 100 Mack trucks, a reliable and versatile scan tool is essential. The Pocket IQ 2’s compact size and initial functionality were promising. However, the lack of comprehensive coverage for emissions diagnostics, especially for older Mack engines (2007-2012), and the occasional random shutdowns during scanning, severely limit its practical application in this environment. A software update that addresses these issues, specifically adding DPF regeneration capabilities for these Mack models, would significantly enhance the tool’s value and make it a truly indispensable asset for mechanics working with these vehicles.
