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Lexus UX Fault Codes

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

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Common UX Fault Codes

These are the most common UX fault codes that people are searching for.

Error Icon P0155

O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)

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Error Icon P0154

O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)

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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 P0990

Transmission Fluid Pressure Sensor/Switch E Circuit High

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Severity Icon 7/10

Error Icon P0171

System Too Lean (Bank 1)

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Error Icon P0330

Knock Sensor 2 Circuit (Bank 2)

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Severity Icon 6/10

Error Icon P0158

O2 Sensor Circuit High Voltage (Bank 2 Sensor 2)

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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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Error Icon P0156

O2 Sensor Circuit Malfunction (Bank 2 Sensor 2)

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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 7/10

Error Icon P0110

Intake Air Temperature Circuit Malfunction

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Error Icon U0123

Lost Communication With Yaw Rate Sensor Module

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Error Icon P0117

Engine Coolant Temperature Circuit Low Input

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Error Icon P0230

Fuel Pump Primary Circuit Malfunction

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Error Icon P0328

Knock Sensor 1 Circuit High Input (Bank 2 or Single Sensor)

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Error Icon P0327

Knock Sensor 1 Circuit low Input (Bank 2 or Single Sensor)

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Severity Icon 3/10

Error Icon P0440

Evaporative Emission Control System Malfunction

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Severity Icon 7/10

Error Icon P0430

Catalyst System Efficiency Below Threshold (Bank 2)

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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 3/10

Error Icon P0456

Evaporative Emissions System Small Leak Detected

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Error Icon B1581

Dim Panel Increase Input Circuit Short To Battery

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Severity Icon 7/10

Error Icon P0420

Catalyst System Efficiency Below Threshold (Bank 1)

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Error Icon C1241

ABS Hydraulic Pressure Differential Switch Input Short Circuit To Ground

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Severity Icon 6/10

Error Icon P0174

System Too Lean (Bank 2)

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Error Icon C1201

ABS Inlet Valve Coil LF Circuit Short To Ground

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Error Icon B1421

Passenger Power Window Motor Circuit Short To Ground

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Error Icon B2416

Climate Control Recirculation Actuator Out of Limits

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Error Icon B1861

Climate Control A/C Pressure Switch Circuit Short To Ground

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Error Icon B1650

Seat Driver Recline Forward Circuit Short To Ground

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Error Icon C1249

ABS Outlet Valve Coil RR Circuit Short To Ground

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Severity Icon 8/10

Error Icon C1223

Lamp Brake Warning Output Circuit Failure

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Error Icon C1203

ABS Outlet Valve Coil Rear Circuit Open

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Error Icon P1155

Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

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Error Icon P1130

Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 1 Sensor 1)

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Severity Icon 4/10

Error Icon P0128

Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)

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Error Icon P0500

Vehicle Speed Sensor Malfunction

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Severity Icon 3/10

Error Icon P0441

Evaporative Emission Control System Incorrect Purge flow

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Error Icon P2197

O2 Sensor Signal Stuck Lean - Bank 2 Sensor 1

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Error Icon P0353

Ignition Coil C Primary/Secondary Circuit Malfunction

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Error Icon P0057

Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 2 Sensor 2

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Error Icon P1135

Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

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Severity Icon 9/10

Error Icon P0300

Random/Multiple Cylinder Misfire Detected

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Error Icon P1354

VVT System Malfunction (Bank 2)

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Error Icon U0126

Lost Communication with Fuel Pump Control Module (FPCM)

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Error Icon P1604

Code Word Unregestered

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Error Icon P1349

VVT System Malfunction (Bank 1)

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Error Icon P1300

Igniter Circuit Malfunction (Bank 1 Or No. 1)

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Error Icon P1346

VVT Sensor Rang/Performance Problem (Bank 1)

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Error Icon P1603

EEPROM Malfunction

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Error Icon P1121

Accelerator Pedal Position Sensor Range/Performance Problem

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Error Icon P1125

Throttle Control Motor Circuit Malfunction

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Error Icon P1128

Throttle Control Motor Lock Malfunction

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Error Icon P1133

Air/Fuel Ratio Sensor Circuit Response Malfunction (Bank 1 Sensor 1)

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Error Icon P1350

VVT Sensor Circuit Malfunction (Bank 2)

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Error Icon P1126

Magnetic Clutch Circuit Malfunction

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Error Icon P1150

Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (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 8/10

Error Icon P0017

Crankshaft Position Camshaft Position Correlation Bank 1 Sensor B

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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 4/10

Error Icon P0102

Mass or Volume Air Flow Circuit Low Voltage Input

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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 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 P0301

Cylinder 1 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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About the UX