Diagnose with Precision Uncover OBDII Failure Sources in CAN Safety Tests

An OBD II vehicle will not pass the annual inspection unless the required system tests have been completed and reported as "ready." For more ... If there is excessive pollution, it means the emissions control system is not functioning properly, the vehicle needs repair and it will fail DEQ's test. This ... Some sensors, such as the mass air flow (MAF) sensor and the engine knock sensor, may affect how the engine runs as they begin to fail. This can also result in ... ... will trigger a code so a technician can better identify the issue. If you ... P0A0D, High voltage safety device failure, Inverter/converter assembly failure ... OBDII Explained · How does OBDII work? · Reasons for failing an OBDII inspection · Malfunction Indicator Light (MIL) · Flashing MIL – STOP YOUR VEHICLE IMMEDIATELY! Hey Gang, My dad took in his 2004 E320 to have it emissions tested. They said they could not test it because the computer wouldn't respond. It could be the ECM ground, or a ground from the ECM (as most have multiple grounds). Bad/no grounds have very weird results. If you turn the ... - the OBDII system is not required to check this emissions control system. ... will cause the vehicle to fail. For vehicles year model 1996 – 2000 ... When spark plugs don't fire in the correct order, this can lead to problems for the emissions system, as an engine will misfire and create additional ... This reference information provides both a summary of pass/fail standards for the On-Board Diagnostic (OBD) test portion of a Smog Check inspection and ...