Conditions for Setting the DTC

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.

P12E3, P12E4, P12E5

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

P12E7

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

P12E8

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

P12E9

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

P12EA

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

P12EB

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

P12EC

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

P12ED

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

P12EF

M106C Exhaust Control Valve Actuator - Cylinder Deactivation = Not within a calibrated range - Stuck Closed - For greater than 8 s

P12F0

M106C Exhaust Control Valve Actuator - Cylinder Deactivation = Not within a calibrated range - Stuck Open - For greater than 8 s

P12F1

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

P12F2

M106C Exhaust Control Valve Actuator - Cylinder Deactivation = Internal Component Fault or Stuck in Learn Mode - For greater than 8 s

P3100

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