What do the last two digits of an OBD II trouble code indicate?
The last 2 digits indicate the specific trouble code. On OBD II vehicles there are 2 different types of DTCs: Stored and Pending. If the malfunction conditions are required to occur more than once, the potential malfunction is called a Pending DTC.
What is a warm-up cycle?
What is a warm-up cycle? A warm-up cycle means driving a vehicle so that the engine coolant temperature rises by at least 40 degrees Fahrenheit after the engine is started and reaches at least 160 degrees Fahrenheit.
What is a pending odb2 code?
Pending codes are caused by intermittent faults or faults that the PCM needs to see happen in two consecutive warm-up cycles to set the code. If the fault does not reappear within 40 warm-up cycles, the code will be cleared from memory.
What does Eva mean on a code reader?
Re: Have an INNOVA 3130 Scanner and EVA flashing Is EVA an abbreviation for evaporative system? If this ready monitor is about the evap system, either your information will give you ideas on what to check or Google evap systems.
What does OH mean on code reader?
OH – Oxygen Sensor Heater.
What are permanent codes?
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)
What is the difference between a trip and a warm-up cycle?
A drive cycle or trip, by the way, is not just an ignition cycle, but a warm-up cycle. It is defined as starting the engine and driving the vehicle long enough to raise the coolant temperature at least 40 degrees F (if the startup temperature is less than 160 degrees F).
Can a pending code go away?
The short answer is yes. Your vehicle can pass the smog check with a pending trouble code, so long as the check engine light is not illuminated and the required emission monitors are ready. A pending trouble code may set for diagnostic purposes and will not illuminate the check engine light.
What does it mean if a code is pending?
Pending codes are codes that prep themselves when they determine a fault that engine cycle. Pending codes can be just a quick flash with no symptoms or light. The stored codes are there for the vehicle to know which code to display in the event of a malfunction.
What does cat stand for on a code reader?
Catalyst (CAT) Heated Catalyst. Evaporative (EVAP) System. Secondary Air System. Oxygen (O2) Sensor.
What does the OBD-II P0420 error code mean?
The definition of the OBD-II P0420 code is “Catalyst System Efficiency Below Threshold (Bank 1)”. When the ECU stores this code, it means that the catalytic converter is not operating at maximum efficiency and may need replacement.
What are the p03xx OBD-II Diagnostic Trouble Codes?
This is the listing of P03xx OBD-II diagnostic trouble codes (DTCs). They all start with P03 (e.g. P0300, P0320, etc.), the first letter P designates they are powertrain related codes, the next digits 03 indicates they are Ignition System & Misfire related codes.
What is an OBD-II trouble code on a car?
What is an OBD-II Trouble Code? On-Board-Diagnostic (OBD) trouble codes are one way your vehicle communicates with a mechanic. Every car built since 1996 has an OBD computer system that monitors and identifies issues. In particular, it looks for issues that may result in harmful and polluting emissions from exhaust gases.
What does DTC stand for in OBD-2?
This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. Brands of vehicles affected include but are not limited to Ford, Lexus, Chevy, BMW, Toyota, Jaguar, Acura, Volvo, Nissan, etc.