The advent of On-Board Diagnostics II (OBD2) was intended to standardize vehicle diagnostics, making it easier for mechanics and vehicle owners to understand and address issues. For many, the expectation is that any vehicle manufactured in 2017, especially those adhering to US standards, would feature straightforward OBD2 compatibility. However, as many motorcycle enthusiasts discover, this isn’t always the case, particularly when it comes to certain manufacturers like Honda.
One user’s experience highlights this exact frustration. After exploring options like the Healtech OBD Tool, priced at a considerable $230 plus the cost of a Windows tablet, the reality of motorcycle diagnostics becomes clear. While tools like the Healtech OBD offer solutions, the cost and practicality, especially for on-the-go diagnostics, can be prohibitive.
The core of the issue lies in the fact that not all “DLC” (Data Link Connector) ports are created equal. Despite appearing similar to the OBD2 ports found in cars, Honda’s DLC connector, for instance, doesn’t necessarily translate to direct OBD2 compatibility, nor does it always utilize the standardized data communication protocols one might expect. This contrasts sharply with brands like Triumph, where models like the Bonneville often embrace the ISO9141-2 standard OBD2 protocol and a standard 16-pin DLC. For Triumph owners, this means readily available, inexpensive, and portable diagnostic solutions are at their fingertips, without the need for specialized adapters or cumbersome equipment.
Faced with these compatibility challenges, resourceful owners often look for alternative solutions. One such avenue is exploring external sensors for specific data points. Healtech, the same company behind the OBD tool, offers another product, the “MM5,” which, while designed as an OAT (Outside Air Temperature) sensor, could potentially be adapted for other temperature monitoring needs. For around $130, the MM5 presents a more affordable approach to gathering temperature data, even if it’s not directly integrated into the vehicle’s diagnostic system. The idea of attaching such a sensor to the oil cooler housing of a bike like the CB1100, to monitor Engine Oil Temperature (EOT), becomes a viable workaround. The key consideration then shifts to the sensor’s temperature range and precision, ensuring it’s suitable for the higher temperatures associated with engine oil compared to ambient air.
In conclusion, while the promise of standardized OBD2 diagnostics in 2017 vehicles is appealing, the reality for motorcycle owners, especially those with certain makes like Honda, can be more complex. The higher cost of specialized OBD2 tools and the non-standard implementations necessitate exploring creative alternatives like external sensors to gain valuable insights into vehicle performance. This pursuit of accessible and affordable diagnostic solutions remains a key focus for many in the motorcycle community.
