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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 629 (Electronic Suspension System - Real Time Damping (RTD)) >> Diagnostic Information and Procedures >> DTC C0550: ECU Malfunction - Internal Write/Checksum Malfunction >> Conditions for Running the DTC

Conditions for Running the DTC

WARNING: This page is about a different car, the 2002 GMC Yukon. However, it is still accessible from the selected car via links, so may be relevant.

Upon key on with the ignition in the ON/RUN position.

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