Cadillac XTS P0740: Torque Converter Clutch Circuit Malfunction

P0740 is one of the most common transmission trouble codes. It means that the XTS‘s computer has detected that there is an issue with the torque converter clutch (TCC) solenoid circuit.     P0740: Torque Converter Clutch Circuit Malfunction   The TCC “locks” the drivetrain, which allows for a true mechanical connection between the transmission … Read more

Cadillac XTS P0160: O2 Sensor → No Activity Detected B2S2

  P0160 is a standard OBDII trouble code. It has the same meaning for any vehicle with OBDII, including the Cadillac XTS. When a vehicle has P0160, the PCM/ECM is not detecting any activity from the sensor.  It doesn’t mean that the O2 sensor isn’t getting power, but that the voltage isn’t changing, which is … Read more

Cadillac XTS P0505: Idle Air Control System- Malfunction

P0505 is an OBDII code that deals with the idle air control system in the Cadillac XTS.  It’s a generic code, which means that it has the same meaning for the XTS as it would any other vehicle (XTS or not). P0505:  Idle Air Control System:  Malfunction When P0505 is triggered, it is typically caused … Read more