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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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Do you know the fault code already? Enter it in the box below and hit "Search Codes".

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 »
Recall Notice Icon
Severity Icon 3/10

Error Icon P0442

Evaporative Emission Control System Leak Detected

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Severity Icon 3/10

Error Icon P0496

Evaporative Emission System High Purge Flow

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Severity Icon 7/10

Error Icon P0171

System Too Lean (Bank 1)

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Severity Icon 6/10

Error Icon P0174

System Too Lean (Bank 2)

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Severity Icon 8/10

Error Icon P0113

Intake Air Temperature Circuit High Input

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Error Icon P00b7

Engine Coolant Flow Low/Performance

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Severity Icon 4/10

Error Icon P0128

Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)

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Severity Icon 7/10

Error Icon P0430

Catalyst System Efficiency Below Threshold (Bank 2)

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Error Icon P0443

Evaporative Emission Control System Purge Control Valve circuit Malfunction

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Severity Icon 7/10

Error Icon P0420

Catalyst System Efficiency Below Threshold (Bank 1)

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Error Icon P0121

Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance Problem

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Severity Icon 9/10

Error Icon P0300

Random/Multiple Cylinder Misfire Detected

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Error Icon P2000

NOx Adsorber Efficiency Below Threshold Bank 1

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Severity Icon 8/10

Error Icon P0301

Cylinder 1 Misfire Detected

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Severity Icon 8/10

Error Icon P0340

Camshaft Position Sensor Circuit Malfunction

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Severity Icon 4/10

Error Icon P0455

System Gross Leak Evaporative Emission

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Severity Icon 9/10

Error Icon P0700

Transmission Control System Malfunction

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Error Icon P0008

Engine Position System Performance - Bank 1

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Error Icon P0989

Transmission Fluid Pressure Sensor/Switch E Circuit Low

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Error Icon P1175

Cam Control Fault

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Error Icon P1793

Intake Air Volume Circuit Malfunction

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Error Icon P1467

A/C Compressor Temperature Sensor Malfunction

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Severity Icon 8/10

Error Icon P0017

Crankshaft Position Camshaft Position Correlation Bank 1 Sensor B

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Error Icon P0024

Camshaft Position B - Timing Over-Advanced or System Performance (Bank 2)

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Severity Icon 4/10

Error Icon P0102

Mass or Volume Air Flow Circuit Low Voltage Input

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Severity Icon 8/10

Error Icon P0306

Cylinder 6 Misfire Detected

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Severity Icon 4/10

Error Icon P0101

Mass or Volume Air flow Circuit Range/Performance Problem

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Error Icon B1325

Control Module Power Circuit Low/High Voltage

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Error Icon B1327

Passenger Door Ajar Circuit Failure

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Severity Icon 3/10

Error Icon P0440

Evaporative Emission Control System Malfunction

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Error Icon P0717

Input/Turbine Speed Sensor Circuit No Signal

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Severity Icon 8/10

Error Icon P0021

Intake Camshaft Position Timing - Over-Advanced (Bank 2)

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Error Icon U1096

SCP (J1850) Invalid or Missing Data for Primary Id

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Error Icon U0121

Lost Communication With Anti-Lock Brake System (ABS) Control Module

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Error Icon U1056

SCP (J1850) Invalid or Missing Data for Vehicle Configuration

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Severity Icon 9/10

Error Icon U0073

Control Module Communication Bus "A" Off

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Error Icon U1000

SCP (J1850) Invalid or Missing Data for Primary Id

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Error Icon U0140

Lost Communication With Body Control Module

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Error Icon P1258

Pedal Correlation PDS1 and PDS2

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Error Icon P1101

MAF Sensor Out Of Self Test Range./KOER Not Able To Complete KOER Aborted

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Error Icon P1682

Ignition 1 Switch Circuit 2

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Error Icon P1629

Internal Voltage Regulator Malfunction

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Error Icon P1634

Data Output Link Circuit Failure

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Error Icon P1626

Theft Deterrent Fuel Enable Signal Not Received/ B+ Supply To VCRM A/C Circuit Malfunction

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Error Icon P1153

HO2S Insufficient Switching Bank 2 Sensor 1

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Severity Icon 7/10

Error Icon P0010

Intake Camshaft Position Actuator Circuit / Open (Bank 1)

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Severity Icon 9/10

Error Icon P0011

Intake Camshaft Position Timing - Over-Advanced (Bank 1)

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Severity Icon 9/10

Error Icon P0012

Intake Camshaft Position Timing - Over-Retarded (Bank 1)

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Severity Icon 7/10

Error Icon P0013

Exhaust Camshaft Position Actuator Circuit / Open (Bank 1)

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Severity Icon 8/10

Error Icon P0014

Exhaust Camshaft Position Timing - Over-Advanced (Bank 1)

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Severity Icon 8/10

Error Icon P0016

Crankshaft Position Camshaft Position Correlation Bank 1 Sensor A

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Severity Icon 4/10

Error Icon P0036

Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2

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Severity Icon 8/10

Error Icon P0106

Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem

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Severity Icon 6/10

Error Icon P0131

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)

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Severity Icon 7/10

Error Icon P0134

O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)

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Severity Icon 6/10

Error Icon P0135

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

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Severity Icon 4/10

Error Icon P0137

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)

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Severity Icon 6/10

Error Icon P0138

O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)

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Severity Icon 6/10

Error Icon P0141

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

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Severity Icon 5/10

Error Icon P0172

System Too Rich (Bank 1)

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Severity Icon 5/10

Error Icon P0175

System Too Rich (Bank 2)

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Severity Icon 8/10

Error Icon P0302

Cylinder 2 Misfire Detected

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Severity Icon 8/10

Error Icon P0303

Cylinder 3 Misfire Detected

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Severity Icon 8/10

Error Icon P0304

Cylinder 4 Misfire Detected

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Severity Icon 8/10

Error Icon P0305

Cylinder 5 Misfire Detected

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Severity Icon 3/10

Error Icon P0325

Knock Sensor 1 Circuit (Bank 2 or Single Sensor)

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Severity Icon 8/10

Error Icon P0332

Knock Sensor 2 Circuit Low Input (Bank 2)

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Severity Icon 8/10

Error Icon P0335

Crankshaft Position Sensor A Circuit Malfunction

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Severity Icon 6/10

Error Icon P0341

Camshaft Position Sensor Circuit Range/Performance

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Severity Icon 7/10

Error Icon P0401

Exhaust Gas Recirculation Flow Insufficient Detected

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Severity Icon 3/10

Error Icon P0441

Evaporative Emission Control System Incorrect Purge flow

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Severity Icon 3/10

Error Icon P0446

Evaporative Emission Control System Vent Control Circuit Malfunction

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Severity Icon 4/10

Error Icon P0449

Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction

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Severity Icon 3/10

Error Icon P0456

Evaporative Emissions System Small Leak Detected

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Severity Icon 5/10

Error Icon P0463

Fuel Level Sensor Circuit High Input

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Severity Icon 3/10

Error Icon P0507

Idle Control System RPM higher Than Expected

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Cadillac XTS Image

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.