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Home >> Chevrolet >> 1996 >> Chevy Van G2500, Van Cargo Extended, 6.5 F >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Engine Controls - Tests W/Codes - 5.7L) >> Trouble Code Charts >> DTC 55: ECM/Pcm Error

DTC 55: ECM/Pcm Error

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Ensure control module grounds are good and MEM-CAL is properly latched. If okay, replace control module. Clear codes and confirm closed loop operation. Check operation of SERVICE ENGINE SOON light.

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