The Cen Tech OBDII & CAN Scan Tool with ABS, often available at Harbor Freight, is a budget-friendly option for home mechanics. This review explores its features and performance based on personal experience. While the price is attractive, some quirks and operational inconsistencies raise questions about its reliability.
Initial Impressions and Feature Overview
The Cen Tech scanner boasts OBDII and CAN compatibility, along with ABS support, a key factor in its selection over competing models. The ability to capture and store data sets for later review is a valuable feature. However, initial impressions after unboxing and using the device were mixed.
Screen Readability Issues
A significant drawback is the poor screen readability when the unit is unplugged from the vehicle’s OBDII port. Even with fresh batteries, the screen illumination is significantly dimmer, making it difficult to navigate menus or review saved data indoors.
Data Capture Inconsistencies
The data capture function, while promising, exhibits some strange behavior. The unit can store three separate data captures. However, inconsistencies arise when reviewing saved data. Data sets sometimes appear identical when viewed off the vehicle, yet display correctly when the scanner is reconnected. Furthermore, the number of data points captured can fluctuate unexpectedly, even on the same vehicle.
Triggering Anomalies
The “Manual Trigger” for capturing a complete data set has also presented issues. Initially, the scanner would wait for a manual key press to begin recording. However, it later began automatically triggering data capture without user input, even after clearing the Check Engine Light (CEL), despite the manual trigger setting being enabled.
Comparing to Previous Scanners
Compared to a previously owned Actron code reader, which provided reliable code reading for older vehicles, the Cen Tech scanner offers more advanced functionality with CAN support and data logging. However, the Actron’s simplicity and consistent performance highlight the Cen Tech’s operational quirks.
Considering Alternatives: Laptop-Based Solutions
Prior to purchasing the Cen Tech, laptop-based diagnostic software was considered. However, concerns about connectivity issues with certain hardware interfaces ultimately led to choosing the Cen Tech.
Conclusion: A Mixed Bag
The Cen Tech OBDII & CAN Scan Tool with ABS offers a tempting price point and valuable features. However, the screen readability issues, data capture inconsistencies, and unpredictable triggering behavior raise concerns about its overall reliability. While it functions adequately for basic code reading and data logging, users should be aware of its potential quirks. Further investigation and comparison with other scan tools in a similar price range are recommended before making a purchase decision.
