Topic: Guide to Check Engine Codes
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Answers to Common Questions
How to Check an Engine Code
Prior to the second phase of on-board diagnostics (called OBD II) implemented in 1996, reading engine codes was difficult and often manufacturer-specific. To standardize the codes and equipment used to read them, OBD II universalized the lo... Read More »
Source: http://www.ehow.com/how_5939717_check-engine-code.html
How to Check Engine Light Codes
Check Engine Light. Just those words send chills up ones spine. Wouldn't it be nice to be able to check what was wrong when that dreaded check engine light comes on in your car? Wouldn't it be nice to know whether your car was about to blow... Read More »
Source: http://www.ehow.com/how_5739358_check-engine-light-codes.html
How to Reset Check Engine Codes
When a car's on-board diagnostic system detects a problem, it generates an error code, and a "Check Engine" light will often illuminate until the system is reset. This light may stay on even after the related problem has been successfully r... Read More »
Source: http://www.ehow.com/how_7317555_reset-check-engine-codes.html
More Common Questions
Answers to Other Common Questions
Check engine codes, or diagnostic trouble, provide information on malfunctions in the vehicle's drive-train management system. The on-board computer runs frequent tests on the various sensors in the system, and if any of those sensors send ...
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Source: http://www.ehow.com/how_6619443_read-check-engine-codes.html?ref=...
The computer on a Ford recognizes irregularities in the signals produced by the various sensors. If the signal from these sensors is out of parameter or not there at all, the computer automatically characterizes, identifies and sets it to c...
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Source: http://www.ehow.com/how_5491459_check-engine-codes-ford.html
While computers were integrated in vehicles as early as 1969 (fuel-injected VWs), on-board diagnostics (OBD) were not mandated until the early 1980s. Because the beginning phase of OBD was vehicle specific, it complicated the procedure to r...
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Source: http://www.ehow.com/how_5937710_erase-check-engine-codes.html
Self-diagnostic systems date back to Volkswagen's 1969 Type 3, the marque's first non-Beetle car. For the next 27 years, onboard diagnostic system programming was an automotive Wild West, where every manufacturer used whatever system they f...
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Source: http://www.ehow.com/how_10023286_retrieve-check-engine-codes-1998...
An engine code of P0336 indicates a crankshaft sensor performance problem. It requires a code scanner to extract the codes from the computer. When an erratic signal or loss of signal from a sensor occurs, the computer records the fault in m...
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Source: http://www.ehow.com/how_7608120_check-engine-code-p0336.html
Manufactured in 2002, the Chevy Avalanche has always integrated a second version of on-board diagnostics (OBD II). OBD II universalized the equipment and adapters needed to diagnose check engine codes on all passenger vehicles and light-dut...
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Source: http://www.ehow.com/how_5841165_check-engine-codes-chevy-avalanch...
The engine codes for auxiliary emission problems are generated and stored on a vehicle's ECU or Engine Control Unit. On some vehicles, this is simply referred to as an On-board Diagnostic System or OBD. On other vehicles, it is referred to ...
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Source: http://www.ehow.com/how_5877806_check-code-auxiliary-emissions-pr...
