The Actron ABS BrakeScan CP9449 can be purchased for around $230 at most tool and auto parts retailers. But, should professional technicians buy this tool? Can it increase diagnostic productivity? I say, yes.
The CP9449 can be a great starting point for a diagnostic process when resolving ABS MIL light conditions. Most technicians have a work flow pattern or diagnostic process when it comes to ABS repairs. Unlike engine diagnostics, the ABS systems will disable itself if certain faults codes are present. So, observing the condition on a first test drive is almost impossible. This is why access to the fault codes are so important.
The Actron ABS BrakeScan can read ABS codes and display their definitions. The unit has manufacturer specific codes and definitions loaded on the unit.
The unit is especially helpful for initially diagnosing wheel speed sensors. The CP9449 can point you to the correct wheel for inspection of the sensor, tone ring and harness. Also, it can also pull codes for ABS hydraulic components like pump motors, solenoids and switches.
The CP9449 boots quickly and in under 10 key stroke (depending on make and model menus). Compared to a full-feature scan tool, by the time it has booted, you can have the ABS codes with the ABS BrakeScan.
The unit can not erase or clear codes. Once a repair has been made, the ABS computer on most vehicles, should turn off the ABS MIL light at completion of the next drive cycle or self test.
Case Studies
On a 2002 Ford Explorer, I used the tool to pull a code for an erratic signal from a wheel speed sensor signal on the left front. Then I used my full-feature scan tool to look at the data-stream for that sensor. Next, I probed the circuit with my scope and found the damaged wiring harness. The CP9449 saved me time by focusing the diagnostic process on the left front.
Another great feature about this tool is that it will pull "advisory" or "soft" codes that do not turn on the ABS MIL light. On a 2004 GMC Sonoma, I pulled code C0281. It indicates a problem with the brake lamp circuit. After inspecting the switch and circuit, I looked up the conditions needed to set the code.
Code C0281 is set if computer never sees the brake switch release after speeds above 15 mph during start-up. The guy who owns the truck was 6'8" with size 16 shoes, he said that is common to get his feet lightly stuck on the top of the brake pedal.
Coverage
The vehicle coverage for most domestic vehicles from 1996 to 2005. When I say "most", I mean the ABS systems that can be accessed through the OBD II diagnostic port. If you work on police, cabs or municipal light-vehicle fleets, this is the tools for you. It has almost every police car, van and pick-up truck from the Detroit Three supported.
The unit has a USB port and a "program" mode in the setup menu, this means the tool can be updated via the Internet as new software is written. The back-lit display is great in extremely bright conditions. If you install a 9-volt battery you can save the codes and the vehicle you worked on last.
It is well made, and the plastic case and rubber buttons held up well. The cable is six-feet long and well made.
Recommendation
The vehicle coverage may be the only thing that may hold a technician back from buying this tool. If most of the vehicles you work on are domestic, this is a great tool. The tool does not have all of the bells and whistles of a full-feature scan tool. But, this simplicity gives it an advantage when you want quick answers about ABS MIL lights.
Is it worth the asking price? I think it can be a great tool to work into your initial ABS diagnostic process. I would personally recommend this tool.