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Home >> Kia >> 2009 >> Optima EX, 2.7 4 >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> DTC Troubleshooting Procedures (3 Of 3) - 2.7L >> DTC P0604: Internal Control Module Random Access Memory (Ram) Error >> General Information >> General Description

General Information: General Description

A malfunction is detected by using a checksum technique for verifying data. The digital data is composed of zeros and ones. A checksum is the total of all ones in a string of data. By comparing the checksum value with a stored value, a malfunction can be detected.

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