Understanding diagnostic codes is crucial for modern car maintenance, and scan tools like Actron play a vital role in this process. When using an Actron scan tool, you might encounter terms like “Test ID” and “Mode $11$”. This article will explore what these terms mean, particularly in the context of diagnosing engine issues like misfires, and how they relate to the information provided by your scan tool.
In a forum discussion, a user, Stephen Greer, sought help understanding a “Manufacture code MOD $11$” encountered while using an Actron scan tool on a 1997 Jaguar XJR. He also received codes P1316 and P1314 and was experiencing a cylinder 6 misfire. Let’s break down these points to better understand Actron scan tool diagnostics.
The “MOD $11$” refers to OBD-II Mode $11$, which stands for “Request Module Reset”. OBD-II (On-Board Diagnostics II) is a standardized system used in vehicles to monitor and report on their performance. OBD-II Modes are different categories of diagnostic information that a scan tool can request from a vehicle’s computer. While Mode $11$ specifically commands a module reset, it’s less frequently used for typical diagnostic procedures compared to other modes like Mode $03$ (Request Powertrain Diagnostic Trouble Codes) or Mode $01$ (Request Current Powertrain Diagnostic Data).
The user also reported codes P1316 and P1314. According to another forum member, Rivermikerat, these codes indicate:
- P1314: Left Catalyst Damage, Misfire Detected
- P1316: Misfire Rate Above Limit
These codes clearly point to a misfire issue, and the Actron scan tool correctly identified a cylinder 6 misfire for Stephen. In this context, the “Test ID” isn’t explicitly mentioned in the conversation, but it’s important to understand how scan tools use different “tests” within OBD-II modes to pinpoint problems.
To diagnose a misfire, a scan tool, including Actron models, utilizes various tests and data parameters. While “Test ID” might not be a common term displayed on all Actron scan tools, the underlying principle involves accessing specific diagnostic information. For example, within Mode $06$ (Request On-Board Monitoring Test Results), scan tools can retrieve results from on-board diagnostic tests related to misfires, catalyst efficiency, and other systems. These test results often have associated IDs and values that help technicians understand the nature and severity of the problem.
In Stephen’s case, the initial troubleshooting steps recommended by Rivermikerat are standard practice for misfires:
- Check the fuel injector: Ensure it’s pulsing correctly to deliver fuel to cylinder 6.
- Check spark plugs and wires: Inspect for fouling, damage, or wear.
- Check compression: Rule out mechanical issues within cylinder 6.
Another expert, Wrenchtech, provided a comprehensive list of OBD-II modes, highlighting the range of diagnostic capabilities available through scan tools. This list includes modes for requesting current data (Mode $01$), freeze frame data (Mode $02$), trouble codes (Mode $03$), and various advanced diagnostic functions. Understanding these modes helps appreciate the depth of information accessible via an Actron scan tool and similar devices.
Later in the discussion, Kasekenny, another mechanic, suggested that Stephen’s issue might have been a loose connection or a fouled spark plug. This emphasizes that sometimes, seemingly complex diagnostic codes can stem from simple problems. The act of checking and reseating connections or cleaning spark plugs can resolve intermittent issues.
In conclusion, while “Actron Scan Tool Test Id” wasn’t directly referenced as a displayed term in the original forum post, the discussion revolves around using an Actron scan tool to interpret diagnostic information, including OBD-II modes like Mode $11$ and trouble codes like P1314 and P1316. Understanding OBD-II modes and how scan tools utilize them to perform tests and retrieve data is key to effective car diagnostics. When facing engine issues and using an Actron scan tool, focusing on the diagnostic codes, considering potential misfire causes, and systematically troubleshooting, as outlined in the forum, are essential steps to resolving the problem. Always consult your Actron scan tool’s manual for specific instructions on accessing and interpreting test results and data.
