Troubleshooting OBDII Woes CAN Safety Test Failures Exposed

The general differences between OBD I and OBD II can be summarized as follows: -i- ... There may be maintenance and safety indicators used but this is not a ... Explanation of OBD-II diagnostic trouble codes (DTCs). Before DTCs became commonplace, diagnosing issues could be time-consuming. With OBD-II, vehicles can ... Check your fuses to make sure they haven't gone bad before proceeding to further diagnostics. A clogged port can also be the cause of your OBD scanner not ... Understanding OBDII Failures. 1. Reasons Your Vehicle May Have Failed The OBDII Test. Catalytic Converter failure,. Faulty gas cap,. Fuel ... The fault could be caused by something else in the systems that the sensor is monitoring. For example, oxygen sensor lean or rich faults are ... Some drivers fail their emissions inspections with a Not-Ready Rejection VIRS. Your OBD-II must have the sensors at the ready before a mechanic can complete the ... This will cause the vehicle to fail the emission test right then and there. It's best to repair the vehicle so the code doesn't return. Tester. What data can be accessed from the OBDII? · P0201 — Injector circuit malfunction – Cylinder 1 · P0217 — Engine over temperature condition · P0219 — Engine ... If there is a problem, the “Check Engine” or “Service Engine Soon” light may be on. If the light is on when you come in for inspection, the vehicle will fail ... ... should be used for directional purposes. Always follow safety procedures and understand the legal implications of any modifications you might ...