Chevy System Codes Generic OBD-II
All automobiles manufactured soon after 1996, regardless of the make or model, use exactly the same basic diagnostic codes. These codes are the similar on Fords, Hondas, Jeeps and every other automobile including these manufactured by Chevrolet. OBD-II codes indicate problems in various areas with the vehicle. These areas are identified by the initial character on the code. "P" stands for powertrain faults; "B" refers to the physique troubles; "C" indicates chassis electronic malfunctions; and "U" stands for network communication troubles.
General Motors OBD-IIChevrolet, Buick Vehicle Diagnostic equipment, Oldsmobile and GMC are subsidiaries of General Motors. Though the OBD-II technique was meant to standardized diagnostics, wiggle space was left, allowing manufactures to define additional codes as required. Following all, no two brands of engine are exactly the identical. The manufacturer-specific OBD-II codes use exactly the same format as the generic codes and use exactly the same character prefixes to identify the a part of the automobile exactly where the error has been detected.Distinguishing Generic from GM OBD-IIOnce codes happen to be retrieved from a Chevrolet's diagnostic method, there exists a way to tell which codes are manufacturer-specific. For powertrain codes, any code starting with P1, P30, P31, P32 or P33 is manufacturer-specific. For chassis codes, any code starting with C1 or C2 can be a GM code; GM's network communications codes start with U1 and U2, and GM-specific body codes all begin with B1 or B2.
General Motors OBD-IMost Chevrolet vehicles predating 1995 use a flash code method. The diagnostic program can be placed into self-mode and the fault codes within the system is going to be relayed by way of a flashing "Check Engine" light. The codes is often diagnosed by counting the quantity and length of your flashes. GM fault codes are two character numbers -- the first number is represented by extended flashes plus the second by shorter flashes.The way to AccessOBD-II codes call for a special, handheld code reader or scanner. This device may be purchased at most auto parts retailers. The scanner plugs in to the Chevrolet's information outlet, which can be beneath the driver's side dashboard. Every single device differs in how codes are retrieved so it really is important to seek the advice of the item user manual for specific instructions.An OBD-I self-test does not use a scanner. Instead, the program can be jumped by connecting the "A" and "B" slots in the vehicle's data port. Then Auto diagnostic tools, turning on the electrical method will trigger the "Check Engine" light to start flashing.
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