How do fault codes work?
Each code corresponds to a fault detected in the car. When the vehicle detects an issue, it will activate the corresponding trouble code. A vehicle stores the trouble code in it’s memory when it detects a component or system that’s not operating within acceptable limits.
What causes fault codes?
These codes are triggered when the fuel/air ratio includes too much air or too little fuel, giving you a lean fuel mixture. This problem can be caused by leaky valves, dirty sensors or fuel injectors, or low fuel pressure due to pumps or the fuel pressure regulator.
What are u fault codes?
OBDII U Code Definitions
| U Codes | |
|---|---|
| Trouble Code | Fault Location |
| U0115 | Data bus: engine control module (ECM) B – no communication |
| U0121 | Data bus: anti-lock brake system (ABS) control module – no communication |
| U0122 | Data bus: vehicle dynamics control module – no communication |
What to do if you get an OBD fault code?
After you’ve properly diagnosed and fixed the problem that triggered the OBD trouble code; you can reset or clear the Check Engine a number of different ways: You can just drive it and after a certain number of driving cycles it will just clear by itself.
What does a fault code on an oven mean?
Fault code. Definition. F0. This code usually means that there is a problem with the keypanel. Many times, it means the keypanel needs to be replaced. F1. This code usually means that there is a problem with the keypanel.
What is the Check Engine light trouble code?
Check Engine Light Trouble Codes for Old and New cars and Trucks. Some Vehicle Specific Codes. Full list of OBD II Diagnostic Trouble Codes. If your Check engine light is on you may have a serious problem. Scan your codes and follow the chart to determine what the code means. Some parts stores will scan your codes for free.
Where can I find the GM diagnostic trouble code?
Follow scan tool manufacturer’s operating instructions to access the Diagnostic Trouble Codes (DTC’s). Remember, these are manufacturer specific codes only. Refer to our Generic OBD II code list for definitions on all other GM diagnostic trouble codes. Manufacturer Specific Codes P1031HO2S Heater Current Monitor Control Circuit Sensors 1