Originally hitting the market in April 2015, the Actron CP9185 Elite AutoScanner was touted as a versatile handheld diagnostic tool, primarily for OBD2 systems but with added capabilities for OBD1 vehicles. After putting this tool through its paces, here’s a comprehensive review for those considering adding it to their automotive toolkit.
The Actron CP9185 arrives in a neatly packaged kit, which includes a soft carrying case, an instruction booklet, a CD, a main connection cable, a USB cable, and a short OBD2 (16-pin) adapter cable. Interestingly, my package was missing the CD, which supposedly contains the full user manual and PC connectivity software. This omission might necessitate downloading files directly if PC connection is desired. Despite the missing CD, the rest of the components were present and in excellent condition. Purchased directly from Amazon for $175, including shipping, the price seemed like a steal. However, this deal was short-lived, with prices quickly escalating to $259 and beyond from other Amazon sellers, and Actron themselves listing it for $398 plus shipping. It appears I may have caught a temporary price dip, as further research indicated a more consistent price point of around $150 at retailers like Advance Auto Parts.
The Actron CP9185 Elite AutoScanner kit unboxed, displaying the handheld scan tool, cables, and soft case, essential components for automotive diagnostics.
Close-up view of the Actron CP9185 Elite AutoScanner cable and adapter set, highlighting the variety of connectors for different vehicle diagnostic ports.
The scanner itself is equipped with a power button, yet the display backlight only illuminates when an external 12V power source is supplied, either from the vehicle’s diagnostic link connector (DLC) or an external DC adapter. This is particularly relevant for OBD1 vehicles, which typically do not provide power to the DLC, requiring an external power adapter for operation. OBD2 compliant vehicles, however, will power the unit directly through the DLC.
OBD1 Functionality: A Standout Feature
To explore the OBD1 capabilities, I acquired the optional OBD1 adapter cables (CP9127), priced around $35. This adapter set is crucial for older vehicles and includes a 12-pin short adapter cable along with a cigarette lighter power adapter to power the scanner. For 1995 F-body vehicles, the standard 16-pin OBD2 cable is compatible. However, for 1994 models, the CP9127 adapter is necessary unless you are capable of fabricating a custom adapter cable from the Actron’s 15-pin connector to the vehicle’s 12-pin DLC. For 1994 models, a separate 12V AC adapter would also be required. (Wiring details are available upon request for those DIY inclined).
The OBD1 performance of the Actron CP9185 is surprisingly robust. Testing across a range of classic vehicles including 1994/95 LT1 and L34 F-bodies, and an 86 5.0L carbureted model, the tool performed admirably. Each vehicle successfully connected and provided at least three screens of live data, alongside current and historical Diagnostic Trouble Codes (DTCs). A particularly useful feature is the field service mode activation, which grounds the field service pin on the DLC – functioning correctly with the OBD1 cable. However, this feature does not operate as expected on 1995 OBD1 vehicles when using the OBD2 cable, due to the field service pin signal being relocated to pin 12 to avoid conflicts with CAN signals in later models. For proper field service mode operation on a 1995 model with the OBD2 cable, manual wiring modification to connect pin 6 to pin 12 in the DLC would be necessary.
Display of live engine data on the Actron CP9185 Elite AutoScanner during OBD1 diagnostics on a 1994 LT1 engine, showing real-time vehicle parameters.
First screen of live data parameters viewed on the Actron CP9185 while connected to a 1994 LT1 engine, illustrating the scanner’s capability to monitor vehicle performance.
Third screen of live data displayed by the Actron CP9185 during OBD1 scanning of a 1994 LT1 engine, providing a comprehensive view of engine operations.
Menu options on the Actron CP9185 screen during OBD1 diagnostics on a 1994 LT1, showing available functions for vehicle analysis.
Display of various functions and diagnostic tests accessible through the Actron CP9185 while connected to a 1994 LT1 vehicle.
System check options presented on the Actron CP9185 during OBD1 diagnostics, allowing for in-depth vehicle system analysis.
Further diagnostic test options available on the Actron CP9185 when used with a 1994 LT1 vehicle, enhancing diagnostic capabilities.
Display of Diagnostic Trouble Codes (DTCs) on the Actron CP9185, essential for identifying vehicle issues during OBD1 scanning.
OBD2 Performance: Lacking in Advanced Features
Unfortunately, the OBD2 performance of the Actron CP9185 is less impressive. In OBD2 mode, its capabilities are comparable to much cheaper basic OBD2 code readers, such as the Autel MaxiScan MS310, which offers nearly identical functionality at a significantly lower price point. For users seeking more comprehensive OBD2 diagnostics, software solutions like OBDWiz, often bundled with affordable ELMScan-5 Compact adapters (around $25), provide a more feature-rich experience.
Limited Extra Functions
The Actron CP9185 Elite AutoScanner lacks support for advanced systems like ABS (Anti-lock Braking System) or SRS (Supplemental Restraint System) modules, and it does not offer actuator tests. Graphing capabilities are present for some OBD2 parameters, but are low resolution and cannot be paused for detailed examination. The manual mentions graph recording “rewind,” but this feature was not found to be operational. Data logging is available for both OBD1 and OBD2, but recording times are limited to short durations, often less than 20 seconds, and the data update rate is slow. PC connectivity is possible for transferring logged data, but is restricted to text format, limiting in-depth data analysis.
Final Verdict: Best for OBD1, Consider Alternatives for OBD2
The Actron Cp9185 Elite Autoscanner Scan Tool is a worthwhile investment primarily for those who need a handheld device capable of effectively diagnosing OBD1 vehicles. Its OBD1 functionality is robust and provides valuable data and features for older vehicles. However, for OBD2 diagnostics, its performance is underwhelming, offering little advantage over significantly cheaper and sometimes more feature-rich alternatives. If your focus is primarily OBD2 vehicles, exploring other options with broader functionality and better value may be advisable.
