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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Transfer Case - NVG 236/246-NP8 (Two-Speed Automatic) Service) >> Diagnostic Information and Procedures >> DTC C0550: Critical Operational Parameter Failed Checksum >> Circuit Description

Circuit Description

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At each power up the transfer case shift control module runs a self-test on the following:

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