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Home >> Cadillac >> 2016 >> ELR >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> Antilock Brake System >> Diagnostic Information and Procedures >> DTC C056D, C121C-C121F, C123A-C1256, C126C-C127E, C12C2-C12DF, or C12F2-C12F6: Electronic Control Unit Hardware, Electronic Brake Control Module, Electronic Control Unit, Control Module Programming, ABS Isolation Solenoid Valve Driver, ABS Dump Solenoid Valve Driver, ABS Base Brake Solenoid Valve >> DTC Descriptors
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DTC Descriptors

DTC C056D 00

Electronic Control Unit Hardware

DTC C056D 3C

Electronic Control Unit Hardware Internal Communication Malfunction

DTC C121C 00

Electronic Brake Control Module Internal Communication Malfunction

DTC C121D 00

Electronic Brake Control Module Internal Malfunction

DTC C121E 00

Electronic Brake Control Module Malfunction

DTC C121F 00

Electronic Brake Control Module Supervision Software Malfunction

DTC C123A 00

Electronic Brake Control Module RAM Watchdog

DTC C123B 00

Electronic Brake Control Module RAM Program Overflow

DTC C123C 00

Electronic Brake Control Module RAM Malfunction

DTC C123D 00

Electronic Brake Control Module Solenoid Valve Time-out

DTC C123E 00

Electronic Brake Control Module RAM Periodic Interrupt

DTC C123F 00

Electronic Brake Control Module Serial Peripheral Interface Malfunction

DTC C1255 00

Electronic Control Unit Performance

DTC C1256 00

Control Module Programming Checksum Error

DTC C126C 00

Electronic Brake Control Module Communication Bus B Performance

DTC C126D 00

Electronic Brake Control Module Communication Bus B RAM Malfunction

DTC C126E 00

Electronic Brake Control Module Supervision Software Malfunction

DTC C126F 00

Electronic Brake Control Module Serial Peripheral Interface Performance

DTC C127A 00

Electronic Brake Control Module RAM Performance

DTC C127B 00

Electronic Brake Control Module Processor Performance

DTC C127C 00

Electronic Brake Control Module Self Test Malfunction

DTC C127D 00

Electronic Brake Control Module Internal Malfunction

DTC C127E 00

Electronic Brake Control Module High Temperature

DTC C12C2 00

ABS Left Front Isolation Solenoid Valve Driver Shorted

DTC C12C5 00

ABS Right Front Isolation Solenoid Valve Diver Shorted

DTC C12CC 00

ABS Left Front Dump Solenoid Valve Driver Shorted

DTC C12CF 00

ABS Right Front Dump Solenoid Valve Driver Shorted

DTC C12D0 00

ABS Left Rear Dump Solenoid Valve Circuit Open

DTC C12D1 00

ABS Left Rear Dump Solenoid Valve Circuit Shorted

DTC C12D2 00

ABS Left Rear Dump Solenoid Valve Driver Shorted

DTC C12D3 00

ABS Right Rear Dump Solenoid Valve Circuit Open

DTC C12D4 00

ABS Right Rear Dump Solenoid Valve Circuit Shorted

DTC C12D5 00

ABS Right Rear Dump Solenoid Valve Driver Shorted

DTC C12D6 00

ABS Base Brake Open Solenoid Valve Circuit Open

DTC C12D7 00

ABS Base Brake Open Solenoid Valve Circuit Shorted

DTC C12D8 00

ABS Base Brake Open Solenoid Valve Driver Shorted

DTC C12D9 00

ABS Base Brake Closed Solenoid Valve Circuit Open

DTC C12DA 00

ABS Base Brake Closed Solenoid Valve Circuit Shorted

DTC C12DB 00

ABS Base Brake Closed Solenoid Valve Driver Shorted

DTC C12DF 00

Dynamic Rear Proportioning Solenoid Valve Driver Shorted

DTC C12F2 00

ABS Left Rear Isolation Solenoid Valve Circuit Shorted

DTC C12F3 00

ABS Left Rear Isolation Solenoid Valve Performance

DTC C12F4 00

Dynamic Rear Proportioning Solenoid Valve Performance

DTC C12F5 00

ABS Right Rear Isolation Solenoid Valve Circuit Shorted

DTC C12F6 00

ABS Right Rear Isolation Solenoid Valve Performance