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Cadillac XT4 Fault Codes


You can find common Cadillac XT4 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 XT4 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 XT4 has any recall notices on our sister site AutoRecalls.co, sorted by model year.

View Cadillac XT4 Recalls ยป
Recall Notice Icon
Severity Icon 3/10

Error Icon P0441

Evaporative Emission Control System Incorrect Purge flow

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Severity Icon 7/10

Error Icon P0430

Catalyst System Efficiency Below Threshold (Bank 2)

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Error Icon P0410

Secondary Air Injection System Malfunction

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Severity Icon 4/10

Error Icon P0411

Secondary Air Injection System Incorrect Flow Detected

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Severity Icon 6/10

Error Icon P0174

System Too Lean (Bank 2)

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Error Icon P0480

Cooling Fan 1 Control Circuit Malfunction

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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 7/10

Error Icon P0171

System Too Lean (Bank 1)

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Severity Icon 3/10

Error Icon P0496

Evaporative Emission System High 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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Error Icon U0401

Invalid Data Received From ECM/PCM

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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 P0442

Evaporative Emission Control System Leak Detected

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Severity Icon 8/10

Error Icon P0340

Camshaft Position Sensor Circuit Malfunction

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Severity Icon 8/10

Error Icon P0301

Cylinder 1 Misfire Detected

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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 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 P0989

Transmission Fluid Pressure Sensor/Switch E Circuit Low

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Error Icon P1112

Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage

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Severity Icon 6/10

Error Icon P0141

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

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Error Icon P1644

Fuel Pump Speed Control 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 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 7/10

Error Icon P0420

Catalyst System Efficiency Below Threshold (Bank 1)

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Severity Icon 8/10

Error Icon P0306

Cylinder 6 Misfire Detected

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Error Icon P0008

Engine Position System Performance - Bank 1

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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 P1467

A/C Compressor Temperature Sensor Malfunction

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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 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 8/10

Error Icon P0113

Intake Air Temperature Circuit High Input

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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 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 9/10

Error Icon P0300

Random/Multiple Cylinder Misfire Detected

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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 7/10

Error Icon P0401

Exhaust Gas Recirculation Flow Insufficient Detected

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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 XT4 Image

About the XT4

The XT4, also known as the Crossover Touring 4, first hit the market in 2018. Of course, only a single generation has been released since then.

The model is currently produced and sold in both the United States and China.

As its name suggests, it sits below both the XT5 and XT6 in the Cadillac lineup. Competition from outside of the family typically comes from the likes of the BMW X1, Mercedes-Benz GLB-Class, and the hugely popular Volvo XC40.

Models produced in 2019 are notorious for suffering the fault code P0441. This code is logged when there is incorrect purge flow during a non-purge flow condition in the EVAP system. This resulted in a technical service bulletin (TSB) being issued.

As per the TSB, this code will be caused by a faulty capacitor in the purge pump printed circuit board. The bulletin goes on to state that dealers need to replace the emission purge pump to fix this issue under warranty.

Another common issue for the model is P0430. This code indicates that the second catalytic converter is not performing correctly.

This code is often caused by wear and tear, particularly on higher-mileage models. It can also be caused by exhaust leaks upstream of the catalytic converter in the second bank of the engine, as well as faulty oxygen sensors.

Fault code P0410 is also a common problem. This code is logged when the powertrain control module has detected a malfunction from the secondary air injection system.

Thankfully, this code is not a severe problem, meaning owners can fix it somewhat at their leisure. This helps given the broad nature of the code.