Conditions for Setting the DTC

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

P26C5, P26C6, P26C7

Control Circuit = Commanded state does not match the actual state - For greater than 8 s

P31CF, P31DD

Exhaust Control Valve Position - Duty Cycle = Less than 5% - For greater than 8 s

P31D0, P31DE

Exhaust Control Valve Position - Duty Cycle = Greater than 95% - For greater than 8 s

P31D1, P31DF

Exhaust Control Valve Position - Frequency = Less than 97 Hz - For greater than 8 s

P31D2, P31E0

Exhaust Control Valve Position - Frequency = Greater than 206 Hz - For greater than 8 s

P31D3, P31E1

Exhaust Control Valve Position - Duty Cycle = Less than 3.5% - For greater than 8 s

P31D4, P31E2

Exhaust Control Valve Position - Duty Cycle = Greater than 96.5% - For greater than 8 s

P31D5, P31E3

Exhaust Control Valve Position = Not Learned - For greater than 8 s

P31D6, P31E4

Exhaust Control Valve Position - Frequency = Signal Stuck In Range - For greater than 8 s

P31D7, P31E5

Exhaust Control Valve Position = Signal not received - For greater than 8 s

P31D9, P31DC

M106S Exhaust Control Valve Actuator - Sound Quality = Internal Component FaultorStuck in Learn Mode - For greater than 8 s

P31DA, P31E7

M106S Exhaust Control Valve Actuator - Sound Quality = Not within a calibrated range - Stuck Closed - For greater than 8 s

P31DB, P31E8

M106S Exhaust Control Valve Actuator - Sound Quality = Not within a calibrated range - Stuck Open - For greater than 8 s