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Lexus GX Fault Codes


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

View Lexus GX Recalls ยป
Recall Notice Icon

Error Icon P006A

Mass or Volume Air Flow Correlation Bank 1

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Severity Icon 3/10

Error Icon P0441

Evaporative Emission Control System Incorrect Purge flow

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Severity Icon 5/10

Error Icon P0705

Transmission Range Sensor Circuit Malfunction (PRNDL Input)

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Severity Icon 7/10

Error Icon P0430

Catalyst System Efficiency Below Threshold (Bank 2)

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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 P0340

Camshaft Position Sensor Circuit Malfunction

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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 P0171

System Too Lean (Bank 1)

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Error Icon P0051

Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 2 Sensor 1

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Severity Icon 3/10

Error Icon P0442

Evaporative Emission Control System Leak Detected

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Severity Icon 3/10

Error Icon P0456

Evaporative Emissions System Small Leak Detected

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Severity Icon 4/10

Error Icon P0031

Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 1

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Error Icon P0418

Secondary Air Injection System Relay A circuit Malfunction

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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 6/10

Error Icon P0174

System Too Lean (Bank 2)

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Error Icon P0156

O2 Sensor Circuit Malfunction (Bank 2 Sensor 2)

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Error Icon P0161

O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)

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Error Icon P0333

Knock Sensor 2 Circuit High Input (Bank 2)

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Error Icon P0327

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

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Error Icon P0330

Knock Sensor 2 Circuit (Bank 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 5/10

Error Icon P0175

System Too Rich (Bank 2)

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Error Icon P0018

Crankshaft Position Camshaft Position Correlation Bank 2 Sensor A

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Error Icon P0500

Vehicle Speed Sensor Malfunction

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Severity Icon 8/10

Error Icon P0115

Engine Coolant Temperature Circuit Malfunction

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Error Icon P0117

Engine Coolant Temperature Circuit Low Input

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Error Icon P0120

Throttle Pedal Position Sensor/Switch A Circuit Malfunction

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Severity Icon 7/10

Error Icon P0110

Intake Air Temperature Circuit Malfunction

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Severity Icon 3/10

Error Icon P0440

Evaporative Emission Control System Malfunction

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Error Icon P0346

Camshaft Position Sensor A Circuit Range/Performance (Bank 2)

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Severity Icon 8/10

Error Icon P0301

Cylinder 1 Misfire Detected

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Error Icon P0328

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

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Error Icon P0773

Shift Solenoid E Electrical

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Error Icon P0770

Shift Solenoid E Malfunction

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Severity Icon 8/10

Error Icon P0778

Pressure Control Solenoid B Electrical

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Severity Icon 8/10

Error Icon P0776

Pressure Control Solenoid B Performance or Stuck off

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Error Icon P0990

Transmission Fluid Pressure Sensor/Switch E Circuit High

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Error Icon P1605

Knock Control CPU Malfunction

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Error Icon P1604

Code Word Unregestered

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Error Icon P1445

Purge Flow Sensor Circuit High Input

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Error Icon P1125

Throttle Control Motor Circuit Malfunction

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Error Icon B1581

Dim Panel Increase Input Circuit Short To Battery

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Error Icon B1801

Lamp Turn Signal Front Output Circuit Short To Ground

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Error Icon P1128

Throttle Control Motor Lock Malfunction

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Error Icon P1126

Magnetic Clutch Circuit Malfunction

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Error Icon P1350

VVT Sensor Circuit Malfunction (Bank 2)

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Error Icon P1133

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

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Error Icon P1325

Igniter Circuit Malfunction (No. 6)

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Error Icon P1442

Evaporative Emission Control System Leak Detected

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Error Icon C1241

ABS Hydraulic Pressure Differential Switch Input Short Circuit To Ground

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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 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 3/10

Error Icon P0446

Evaporative Emission Control System Vent Control Circuit Malfunction

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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 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 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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About the GX