Updating 08 chevy 1500 obc
Below you will find the most complete list of Chevy trouble codes available. If you are unsure of any abbreviations, check out the acronym list by clicking on the link at the left.The code definitions are a good starting point when determining the cause of the service engine light but where do you go from there? Next, read our article Automotive Circuit Testing, and if there is an article related to the system you are testing, such as Oxygen Sensors or EGR concerns, read these as well. If there is a link to a specific diagnosis strategy for the code then follow that and start testing.
The Readiness code for this Monitor defaults to "continuous" or "monitoring" because this Monitor runs continuously when the engine is cranking or running.Operating Range: Whenever a range of values is provided, try to operate the vehicle in the middle of the range.For example, if the vehicle speed range is from 45-65 mph, operate the vehicle at as close as possible to 55 mph.Or if range for Short Term fuel trim is -20 to 20%; try to operate the engine at 0%.Scan Tool Data: There are certain Parameter Identification (PID) values that must be within range before this Monitor will "run".It's easiest to use the "Find On This Page" feature of your browser's "Edit" menu to find codes on this page as the list is quite long. Follow scan tool manufacturer's operating instructions to access the Diagnostic Trouble Codes (DTC's).
These are listed in numerical order for easy searching. Remember, these are manufacturer specific codes only.
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Check the status of the Readiness code for the EVAP System Monitor.
The Readiness code should change to YES when the test is done.
All Readiness codes are cleared when the battery is disconnected or when the ECM/PCM is cleared with the Scan Tool.