DTC Descriptor

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

DTC P26C5: Exhaust Flow Control Valve Control Circuit
DTC P26C6: Exhaust Flow Control Valve Control Circuit Low
DTC P26C7: Exhaust Flow Control Valve Control Circuit High
DTC P31CF: Exhaust Flow Control Valve Feedback Circuit Low Duty Cycle
DTC P31D0: Exhaust Flow Control Valve Feedback Circuit High Duty Cycle
DTC P31D1: Exhaust Flow Control Valve Feedback Circuit Low Frequency
DTC P31D2: Exhaust Flow Control Valve Feedback Circuit High Frequency - Internal Component Fault
DTC P31D3: Exhaust Flow Control Valve - Position Signal Exceeds Lower Limit
DTC P31D4: Exhaust Flow Control Valve - Position Signal Exceeds Upper Limit
DTC P31D5: Exhaust Flow Control Valve Position Not Learned
DTC P31D6: Exhaust Flow Control Valve Feedback Circuit Incorrect Frequency - Internal Component Fault
DTC P31D7: Exhaust Flow Control Valve Actuator Signal Performance
DTC P31D9: Exhaust Flow Control Valve Actuator Performance
DTC P31DA: Exhaust Flow Control Valve Stuck Closed
DTC P31DB: Exhaust Flow Control Valve Stuck Open