Cadillac DeVille: VSS – Circuit Malfunction

  P0500 is a OBDII trouble code that affects the Cadillac DeVille‘s Vehicle Speed Sensor (VSS). The VSS sends a signal to the engine’s computer letting it know how fast that the vehicle is going. The DeVille uses this signal for many vehicle functions. It helps control transmission shifts, ABS, cruise control, the speedometer, and … Read more

Cadillac DeVille P0306: Misfire Detected (Cylinder 6)

P0306 is a fairly common trouble code with the Cadillac DeVille. It’s and OBD2 code and stands for: P0306 is certainly a cause for concern, and should be considered a threat to the drivability your DeVille. The nice thing about P0306 is that it’s a cylinder specific trouble code, which makes diagnosing the problems much … Read more

Cadillac DeVille P0021: OBDII Code Diagnosis

P0021 is a common trouble code. It affects vehicles with variable valve timing (VVT). The list of VVT vehicles is growing, and the Cadillac DeVille can have VVT, and is prone to developing this code.     P0021 is a generic OBDII code. This means that it has the same definition regardless of the make … Read more

Cadillac DeVille P0014: Causes + How to Fix

P0014 is a relatively common trouble code for vehicles that have Variable Valve Timing (VVT). This includes the Cadillac DeVille.  VVT adjusts the position of the camshaft(s) to maximize the combustion efficiency of the motor. P0014 means that the camshaft position is too far advanced from where it should be in relation to normal operating … Read more

Cadillac DeVille P0175: Causes, Diagnosis, How to Fix

P0175 is a common trouble code that can appear in the Cadillac DeVille. It’s generic, so it has the same meaning for your car as it would any other automobile. There are MANY issues that can cause P0175 in the DeVille. If there are other codes present, use them to eliminate potential causes and save … Read more

Cadillac DeVille P0172: Fuel System Rich – Bank 1

A common trouble code with the Cadillac DeVille is P0172. This code number references a number given to you when you plug your car into an OBDII scanner. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common. It means the motor is running rich. Cadillac DeVille … Read more

Cadillac DeVille P0341: CPS – Range/Performance

P0341 is a somewhat common OBDII diagnostic code in the Cadillac DeVille. It means that there is a Range/Performance problem. In layman terms this means that there is a problem with the signal coming from the Camshaft Position Sensor (CPS).   OBDII P0341 means that there is a problem with the Camshaft Position Sensor (CPS) … Read more

Cadillac DeVille P0340 Code: Diagnosis, Causes, How to Fix

One of the more common engine management trouble codes that can occur in the Cadillac DeVille is P0340. It’s a generic code, which means it has the same definition for every car or truck made after 1996. P0340 is related to the camshaft position sensor and points to an issue with the wiring harness connected … Read more

Cadillac DeVille P0122: TPS “A” Circuit Low Input

P0122 is a common trouble code with the Cadillac DeVille. It’s an OBDII code that references issues with the Throttle Position Sensor (TPS). It is relatively serious problem since it can leave your vehicle stranded or severely limited.     OBDII code P0122 is a serious problem that requires serious attention. Diagnosing it can be … Read more