What does it mean when a OBD2 code is permanent?

What does it mean when a OBD2 code is permanent?

Permanent codes are a special type introduced more recently which can not be cleared using a scan tool. If you have a permanent code the vehicle will clear it itself once the cause has been addressed and sufficient data has been gathered by driving under different conditions (idling, stop and go, highway)

Can a diagnostic trouble code be a permanent DTC?

Changing technology is nothing new, and Permanent DTC legislation is nothing you can’t handle. A diagnostic trouble code is still, in its simplest form, a sign that an input to the computer wasn’t within the range of what the computer’s been told is acceptable. The basics are still the same, even if the repair strategy changed a bit.

What does a code p0304 in OBD mean?

A code P0304 may mean that one or more of the following has happened: Faulty spark plug or wire Faulty coil (pack) Faulty oxygen sensor(s) Faulty fuel injector Burned exhaust valve Faulty catalytic converter(s) Running out of fuel Poor compression Defective computer

When does a permanent DTC get erased by scan tool?

A Permanent DTC will be erased one of two ways:  After three consecutive confirmed fault-free monitoring cycles. The MIL is extinguished and the Permanent DTC is cleared at the start of the fourth fault-free monitoring cycle.  After one confirmed fault-free monitoring cycle following a scan tool “clear DTC” request.

Changing technology is nothing new, and Permanent DTC legislation is nothing you can’t handle. A diagnostic trouble code is still, in its simplest form, a sign that an input to the computer wasn’t within the range of what the computer’s been told is acceptable. The basics are still the same, even if the repair strategy changed a bit.

A Permanent DTC will be erased one of two ways:  After three consecutive confirmed fault-free monitoring cycles. The MIL is extinguished and the Permanent DTC is cleared at the start of the fourth fault-free monitoring cycle.  After one confirmed fault-free monitoring cycle following a scan tool “clear DTC” request.

What are the OBDII Codes for a Mercedes?

OBDII Codes definition for car manufacturer Mercedes: B0001. B0002. B0003. B0004. B0005. B0010. B0011. B0012.