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On this page you can find the meaning of the fault code you may be seeing coming from your Cadillac.

Either choose your model from below or scroll down even further to search and see popular fault codes across all Cadillacs.

Cadillac Models

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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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7/10

Error Icon P0171

System Too Lean (Bank 1)

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4/10

Error Icon P0102

Mass or Volume Air Flow Circuit Low Voltage Input

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7/10

Error Icon P0420

Catalyst System Efficiency Below Threshold (Bank 1)

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8/10

Error Icon P0306

Cylinder 6 Misfire Detected

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7/10

Error Icon P0430

Catalyst System Efficiency Below Threshold (Bank 2)

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Error Icon P0008

Engine Position System Performance - Bank 1

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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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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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8/10

Error Icon P0021

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

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3/10

Error Icon P0496

Evaporative Emission System High Purge Flow

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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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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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7/10

Error Icon P0010

Intake Camshaft Position Actuator Circuit / Open (Bank 1)

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9/10

Error Icon P0011

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

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9/10

Error Icon P0012

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

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7/10

Error Icon P0013

Exhaust Camshaft Position Actuator Circuit / Open (Bank 1)

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8/10

Error Icon P0014

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

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8/10

Error Icon P0016

Crankshaft Position Camshaft Position Correlation Bank 1 Sensor A

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4/10

Error Icon P0036

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

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8/10

Error Icon P0106

Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem

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8/10

Error Icon P0113

Intake Air Temperature Circuit High Input

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4/10

Error Icon P0128

Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)

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6/10

Error Icon P0131

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)

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7/10

Error Icon P0134

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

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6/10

Error Icon P0135

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

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4/10

Error Icon P0137

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)

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6/10

Error Icon P0138

O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)

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6/10

Error Icon P0141

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

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5/10

Error Icon P0172

System Too Rich (Bank 1)

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5/10

Error Icon P0175

System Too Rich (Bank 2)

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9/10

Error Icon P0300

Random/Multiple Cylinder Misfire Detected

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8/10

Error Icon P0301

Cylinder 1 Misfire Detected

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8/10

Error Icon P0302

Cylinder 2 Misfire Detected

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8/10

Error Icon P0303

Cylinder 3 Misfire Detected

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8/10

Error Icon P0304

Cylinder 4 Misfire Detected

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8/10

Error Icon P0305

Cylinder 5 Misfire Detected

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3/10

Error Icon P0325

Knock Sensor 1 Circuit (Bank 2 or Single Sensor)

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8/10

Error Icon P0332

Knock Sensor 2 Circuit Low Input (Bank 2)

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8/10

Error Icon P0335

Crankshaft Position Sensor A Circuit Malfunction

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6/10

Error Icon P0341

Camshaft Position Sensor Circuit Range/Performance

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7/10

Error Icon P0401

Exhaust Gas Recirculation Flow Insufficient Detected

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3/10

Error Icon P0441

Evaporative Emission Control System Incorrect Purge flow

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3/10

Error Icon P0442

Evaporative Emission Control System Leak Detected

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3/10

Error Icon P0446

Evaporative Emission Control System Vent Control Circuit Malfunction

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4/10

Error Icon P0449

Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction

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4/10

Error Icon P0455

System Gross Leak Evaporative Emission

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3/10

Error Icon P0456

Evaporative Emissions System Small Leak Detected

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5/10

Error Icon P0463

Fuel Level Sensor Circuit High Input

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3/10

Error Icon P0507

Idle Control System RPM higher Than Expected

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9/10

Error Icon P0700

Transmission Control System Malfunction

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7/10

Error Icon P2096

Post Catalyst Fuel Trim System Too Lean Bank 1

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6/10

Error Icon P2097

Post Catalyst Fuel Trim System Too Rich Bank 1

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9/10

Error Icon P2135

Throttle/Pedal Position Sensor/Switch A / B Voltage Correlation

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9/10

Error Icon P2138

Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation

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7/10

Error Icon P219A

Bank 1 Air/Fuel Ratio Imbalance

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Cadillac Logo

Cadillac is the luxury brand of General Motors that is used to sell premium versions of its sister brands such as Chevrolet, Buick and GMC.

You will most likely find the same fault codes appearing between these brands as they share the same technology and parts.

Fault codes that you may commonly find in a Cadillac include the P0017 which relates to the camshaft. More specifically the engine control module (or ECM for short) has detected that several of the sensors are out of line and so this could quite possibly lead to a misfire. If the timing is out inside of your engine as signaled by the P0017 error then you will most probably experience a rough noise coming from it as well as reduced power and fuel economy.

If you find that your OBD2 reader is detecting the P0306 error then you are experiencing problems with the sixth cylinder in your Cadillac’s engine. As many of the Cadillac models are either a V6 or V8 then this is likely to affect almost all of the range of models they sell. A P0306 Cadillac fault code represents a misfire in cylinder six and because it is so localized will most likely be a fault only in that cylinder, allowing you to check the components surrounding that area.

Another common Cadillac fault code is the P0440 reading that signals a problem detected in the fuel-recovery system. Luckily a simple solution you can try out yourself is to check that the fuel cap is being tightened correctly. As you check that the fuel cap is secured properly you should also check that it isn’t broken or missing its rubber seal (if fitted with one).

  • Models: 12