Cadillac XTS Fault Codes
You can find common Cadillac XTS fault codes on this page that when clicked take you to a detailed description.
You can also type in the fault code you are getting below to find a more detailed description.
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Cadillac XTS Recalls
When a car manufacturer detects a problem with a model they put out a recall notice and more often than not offer to fix the problem free of charge.
You can check to see if your Cadillac XTS has any recall notices on our sister site AutoRecalls.co, sorted by model year.View Cadillac XTS Recalls »
Common XTS Fault Codes
These are the most common XTS fault codes that people are searching for.
Evaporative Emission Control System Leak DetectedLearn More Fixes
Evaporative Emission System High Purge FlowLearn More Fixes
System Too Lean (Bank 1)Learn More Fixes
System Too Lean (Bank 2)Learn More Fixes
Intake Air Temperature Circuit High InputLearn More Fixes
Engine Coolant Flow Low/PerformanceLearn More
Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)Learn More Fixes
Catalyst System Efficiency Below Threshold (Bank 2)Learn More Fixes
Evaporative Emission Control System Purge Control Valve circuit MalfunctionLearn More
Catalyst System Efficiency Below Threshold (Bank 1)Learn More Fixes
Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance ProblemLearn More
Random/Multiple Cylinder Misfire DetectedLearn More Fixes
NOx Adsorber Efficiency Below Threshold Bank 1Learn More
Cylinder 1 Misfire DetectedLearn More Fixes
Camshaft Position Sensor Circuit MalfunctionLearn More Fixes
System Gross Leak Evaporative EmissionLearn More Fixes
Transmission Control System MalfunctionLearn More Fixes
Engine Position System Performance - Bank 1Learn More
Transmission Fluid Pressure Sensor/Switch E Circuit LowLearn More
Cam Control FaultLearn More
Intake Air Volume Circuit MalfunctionLearn More
A/C Compressor Temperature Sensor MalfunctionLearn More
Crankshaft Position Camshaft Position Correlation Bank 1 Sensor BLearn More Fixes
Camshaft Position B - Timing Over-Advanced or System Performance (Bank 2)Learn More
Mass or Volume Air Flow Circuit Low Voltage InputLearn More Fixes
Cylinder 6 Misfire DetectedLearn More Fixes
Mass or Volume Air flow Circuit Range/Performance ProblemLearn More Fixes
Control Module Power Circuit Low/High VoltageLearn More
Passenger Door Ajar Circuit FailureLearn More
Evaporative Emission Control System MalfunctionLearn More Fixes
Input/Turbine Speed Sensor Circuit No SignalLearn More
Intake Camshaft Position Timing - Over-Advanced (Bank 2)Learn More Fixes
SCP (J1850) Invalid or Missing Data for Primary IdLearn More
Lost Communication With Anti-Lock Brake System (ABS) Control ModuleLearn More
SCP (J1850) Invalid or Missing Data for Vehicle ConfigurationLearn More
Control Module Communication Bus "A" OffLearn More Fixes
SCP (J1850) Invalid or Missing Data for Primary IdLearn More
Lost Communication With Body Control ModuleLearn More
Pedal Correlation PDS1 and PDS2Learn More
MAF Sensor Out Of Self Test Range./KOER Not Able To Complete KOER AbortedLearn More
Ignition 1 Switch Circuit 2Learn More
Internal Voltage Regulator MalfunctionLearn More
Data Output Link Circuit FailureLearn More
Theft Deterrent Fuel Enable Signal Not Received/ B+ Supply To VCRM A/C Circuit MalfunctionLearn More
HO2S Insufficient Switching Bank 2 Sensor 1Learn More
Intake Camshaft Position Actuator Circuit / Open (Bank 1)Learn More Fixes
Intake Camshaft Position Timing - Over-Advanced (Bank 1)Learn More Fixes
Intake Camshaft Position Timing - Over-Retarded (Bank 1)Learn More Fixes
Exhaust Camshaft Position Actuator Circuit / Open (Bank 1)Learn More Fixes
Exhaust Camshaft Position Timing - Over-Advanced (Bank 1)Learn More Fixes
Crankshaft Position Camshaft Position Correlation Bank 1 Sensor ALearn More Fixes
Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2Learn More Fixes
Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance ProblemLearn More Fixes
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)Learn More Fixes
O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)Learn More Fixes
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)Learn More Fixes
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)Learn More Fixes
O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)Learn More Fixes
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)Learn More Fixes
System Too Rich (Bank 1)Learn More Fixes
System Too Rich (Bank 2)Learn More Fixes
Cylinder 2 Misfire DetectedLearn More Fixes
Cylinder 3 Misfire DetectedLearn More Fixes
Cylinder 4 Misfire DetectedLearn More Fixes
Cylinder 5 Misfire DetectedLearn More Fixes
Knock Sensor 1 Circuit (Bank 2 or Single Sensor)Learn More Fixes
Knock Sensor 2 Circuit Low Input (Bank 2)Learn More Fixes
Crankshaft Position Sensor A Circuit MalfunctionLearn More Fixes
Camshaft Position Sensor Circuit Range/PerformanceLearn More Fixes
Exhaust Gas Recirculation Flow Insufficient DetectedLearn More Fixes
Evaporative Emission Control System Incorrect Purge flowLearn More Fixes
Evaporative Emission Control System Vent Control Circuit MalfunctionLearn More Fixes
Evaporative Emission Control System Vent Valve/Solenoid Circuit MalfunctionLearn More Fixes
Evaporative Emissions System Small Leak DetectedLearn More Fixes
Fuel Level Sensor Circuit High InputLearn More Fixes
Idle Control System RPM higher Than ExpectedLearn More Fixes
- Manufacturer: Cadillac
About the XTS
The XTS first made its debut in 2013 and remained on the market as a single generation until 2019. Cadillac then replaced it with the CT5 in order to reserve the ‘XT’ moniker for their Crossover Touring SUV range like the XT6.
Despite only a single generation being released, the model received a notable facelift in its final year of production.
Additional variants included the high-performance XTS V-Sport and the long-wheelbase XTS-L.
Competition typically came from other luxury full-size sedans. The most notable of these included the BMW 5-Series, Lincoln Continental, Mercedes-Benz E Class, and the Volvo S90.
The most common issue that XTS owners have faced is P0442. This code indicates that there is a small leak in the evaporative emissions control (EVAP) system. This is a very common issue for a lot of Cadillac models.
In most cases, it is caused by either a loose or defective gas cap.
In addition to this, fault code P0496 indicates that there is purge flow during a non-purge condition.
This code typically means that there is an issue with the purge control valve. However, if these codes are logged together, it can mean that there is a leak causing both codes. Again, checking the gas cap should always be the first step in addressing these issues.
Another problem that the XTS is prone to suffering is P0171. This code means that the first bank of the engine is running too lean.
A technical service bulletin (TSB) was issued for models manufactured between 2015 and 2018 fitted with the 3.6 LFX engine for this code.
As per the TSB, the cause is a possible vacuum leak in the intake manifold. However, it can also be caused by a faulty purge valve like with the previous code.