DTC Descriptors
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. 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