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My 1999 Buick Regal has the codes: kwp2000 and iso9141- what do these codes mean?

Vehicle: 1999 Buick Regal v6

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These are not code what they are are communication protocols, This is a communication speed, What happens when the scan tools make a connection to the OBD port it matches the communication speed at which your ECM communicates with,  the scan tool.

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