Here’s an example of an OBD2 fault code display:
P0135 – This is the actual fault code, typically shown alphanumerically on the diagnostic tool.
- P: Identifies the code as powertrain related (most common category for engine and transmission issues).
- 0: Indicates a generic code (applicable to most vehicles) – there are also manufacturer-specific codes that start with a 1.
- 135: Points to a specific problem within the powertrain category. In this case, P0135 refers to a malfunction in the heated oxygen sensor (HO2S) heater circuit in Bank 1 Sensor 1 (location details vary depending on vehicle).
The diagnostic tool might display the code alongside additional information, such as:
- Description: “Heated Oxygen Sensor (HO2S) Heater Circuit Malfunction (Bank 1 Sensor 1)” – This clarifies the specific issue related to the code.
- Possible Causes: This section might list potential reasons for the fault code, such as a faulty oxygen sensor heater element, damaged wiring harness, or malfunctioning engine control module (ECM).
While the specific format and details may vary slightly depending on the diagnostic tool, OBD2 ensures a consistent overall structure for fault code displays, making it easier for technicians to understand and diagnose problems across various car models.
Hello there, just became alert to your blog through Google, and found that it’s really informative.
I’m going to watch out for brussels. I will be grateful if you continue this in future.
Many people will be benefited from your writing.
Cheers!