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What is a Diagnostic Trouble Code?

They are codes that the computer diagnostic system in a given car has. The system displays a certain code depending on what kind of problem the system can detect from inside of a car.

C1439

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B1589

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P0767

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P0733

is related to Gear 3 -incorrect ratio and Transmission.

Diagnostic trouble costs are used to help car mechanics and owners with a rich expertise in car maintenance

P0733

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Explanation of Codes

DTCs come in a string of five characters. The first character will either be P (powertrain), B (body), C (chassis) or N (network).

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P0733

is related to Gear 3 -incorrect ratio and Transmission.

The second character either will be a 0 or 1. 0 means it is a generic OBD 2 code. 1 means it is a car manufacturer exclusive code.

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P0733

is related to Gear 3 -incorrect ratio and Transmission.

The third character can be one of many letters or numbers. This list of characters include 1 (fuel and air metering)...

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P0733

is related to Gear 3 -incorrect ratio and Transmission.

... 2 (fuel and air injector circuit), 3 (ignition), 4 (auxiliary emission control), 5 (vehicle speed and idle control systems)...

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P0733

is related to Gear 3 -incorrect ratio and Transmission.

... 7, 8, or 9 (transmission) and A, B or C (hybrid propulsion).

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P0733

is related to Gear 3 -incorrect ratio and Transmission.

The fourth and fifth characters in the code represent a specific description of the problem...

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P0733

is related to Gear 3 -incorrect ratio and Transmission.

... with the part and system in question. These are numbered by “00”, “01”, “02” and so on.

Level 1

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500 trouble codes

There are over 5000 generic and manufacturer exclusive OBD 2 troubleshooting codes

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Learn more about Diagnostic Trouble Code!