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DTC Descriptors

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
DTC C0550 00:

Electronic Control Unit (ECU) Performance

DTC C0550 31:

Electronic Control Unit (ECU) Performance

DTC C0550 32:

ECU Performance General Memory Failure

DTC C0550 34:

ECU Malfunction RAM Failure

DTC C0550 35:

ECU Malfunction ROM Failure

DTC C0550 36:

ECU Malfunction EEPROM Failure

DTC C0550 37:

ECU Malfunction Watch Dog failure

DTC C0550 38:

ECU Performance Supervision Software Failure

DTC C0550 39:

ECU Performance Internal Electronic Failure/Discard

DTC C0550 4B:

ECU Internal Fault

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