Cadillac CTS P0456: Meaning, Causes, How to Fix

One of the most common trouble codes with the Cadillac CTS is the P0456 code. This trouble code references a number that is given to you when you plug your CTS into an OBDII scanner. P0456 Indicates that there is a small leak in the evaporative emission control system. It often appears with or is … Read more

Cadillac CTS P0102: Meaning, Causes, + How to Fix

If you own a Cadillac CTS, you may have encountered the P0102 trouble code. This code indicates that the Mass Air Flow (MAF) circuit is low and not performing within its specified operating range. When this happens, your car may experience drivability issues such as stalling, lack of power, rough idle, and hesitation. There are … Read more

Cadillac CTS P0101: Meaning, Causes, and Diagnosis

P0101 code in the Cadillac CTS is crucial to maintaining your truck’s performance and ensuring it runs efficiently. This code indicates that there is a problem with your car’s Mass Air Flow (MAF) sensor, specifically, a Range/Performance issue. The most common cause of P0101 is a bad MAF sensor. When you encounter the P0101 code, … Read more

Cadillac CTS P0440: Meaning, Causes, How to Fix

The P0440 code is a common trouble code that many Cadillac CTS owners may encounter. It indicates that there is an issue with the car’s Evaporative Emission Control (EVAP) system. Specifically, the EVAP system is malfunctioning. A variety of causes can trigger the P0440 code, with the most common one being a loose or damaged … Read more

Cadillac CTS P0430 Code: Causes + How to Fix

This page is meant to help you troubleshoot the Cadillac CTS P0430 trouble code. It covers the P0430 code’s meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of Contents … Read more

Cadillac CTS P0420: Meaning, Causes, + How to Fix

This page is meant to help you troubleshoot the Cadillac CTS P0420 trouble code. It covers the P0420 code’s meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. Table … Read more

Cadillac CTS P0174: Meaning, Causes, How to Fix

One of the most common trouble codes with the Cadillac CTS is P0174. It indicates that your Cadillac CTS is running lean on the bank two side of the engine.  P0174 and P0171 (fuel trim lean bank one) are the most frequently seen air/fuel mixture-related codes. If they appear together, it reduces the list of … Read more

P0305 Cadillac CTS

P0305 is a fairly common trouble code with the Cadillac CTS. It’s and OBD2 code and stands for: P0305: Misfire Detected → Cylinder 5 P0305 is certainly a cause for concern, and should be considered a threat to the drivability your CTS. The nice thing about P0305 is that it’s a cylinder specific trouble code, … Read more

Cadillac CTS P0304: Cylinder 4 Misfire – Diagnosis + Fix

If your Cadillac CTS has the P0304 trouble code, you should know that it’s about as common of a code as there is. It’s a generic OBD IIcode (same meaning for all vehicles) that indicates that your car’s fourth cylinder is misfiring. P0304 is a drivability concern and should be dealt with right away. If … Read more