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Lexus GS Fault Codes


You can find common Lexus GS 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".

Lexus GS 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 GS has any recall notices on our sister site AutoRecalls.co, sorted by model year.

View Lexus GS Recalls »
Recall Notice Icon
Severity Icon 7/10

Error Icon P0430

Catalyst System Efficiency Below Threshold (Bank 2)

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Error Icon P0500

Vehicle Speed Sensor Malfunction

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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 P0017

Crankshaft Position Camshaft Position Correlation Bank 1 Sensor B

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Error Icon P0348

Camshaft Position Sensor A Circuit High Input (Bank 2)

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Severity Icon 4/10

Error Icon P0455

System Gross Leak Evaporative Emission

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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 P0172

System Too Rich (Bank 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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Severity Icon 3/10

Error Icon P0325

Knock Sensor 1 Circuit (Bank 2 or Single Sensor)

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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 3/10

Error Icon P0441

Evaporative Emission Control System Incorrect Purge flow

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Severity Icon 3/10

Error Icon P0440

Evaporative Emission Control System Malfunction

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Error Icon P0763

Shift Solenoid C Electrical

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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 P0761

Shift Solenoid C Performance or Stuck Off

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Error Icon P0756

Shift Solenoid B Performance or Stuck Off

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Error Icon P0125

Insufficient Coolant Temperature for Closed Loop Fuel Control

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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 P0138

O2 Sensor Circuit High Voltage (Bank 1 Sensor 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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Error Icon P0057

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

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Error Icon P0330

Knock Sensor 2 Circuit (Bank 2)

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Error Icon P0773

Shift Solenoid E Electrical

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Error Icon P0990

Transmission Fluid Pressure Sensor/Switch E Circuit High

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Error Icon P1346

VVT Sensor Rang/Performance Problem (Bank 1)

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Severity Icon 8/10

Error Icon P1235

Fuel Pump Control Out Of Range

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Error Icon P1170

ESO - Engine Shut Off Solenoid Fault

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Error Icon P1780

PNP Switch Malfunction

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Error Icon P1121

Accelerator Pedal Position Sensor Range/Performance Problem

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Error Icon P1120

Accelerator Pedal Position Sensor Circuit Malfunction

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Error Icon C1201

ABS Inlet Valve Coil LF 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 P1125

Throttle Control Motor Circuit Malfunction

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Error Icon P0161

O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 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 P1300

Igniter Circuit Malfunction (Bank 1 Or No. 1)

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Error Icon C1241

ABS Hydraulic Pressure Differential Switch Input Short Circuit 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 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 P1603

EEPROM Malfunction

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Error Icon P1350

VVT Sensor Circuit Malfunction (Bank 2)

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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 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 6/10

Error Icon P0135

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

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Lexus GS Image

About the GS

The Lexus GS is an executive sedan that began production by Toyota’s luxury Lexus division in 1991. Toyota made the decision to discontinue the model in 2020 in the face of declining sales.

Its time on the market saw a total of four generations, with the fourth version being released in 2011 and remaining on the market until its final year. The Lexus ES later replaced the model in the European market, which is also a 4-door sedan.

While on sale, competition came from the likes of other popular luxury sedans like the Audi A6, BMW 5-Series, and Mercedes-Benz E-Class.

One of the most common issues that the GS faced is shown by fault code P0430. This code indicates that the catalytic converter in the second exhaust bank is not performing properly. Because the issue is in the second bank, it can only affect the GS models with either a V6 or V8 engine.

Any issues with the catalytic converter should be addressed quickly because of the cost of replacing these parts.

Issues in the exhaust like damage or leaks can cause this issue, as well as faulty oxygen sensors. Of course, the catalytic converter should also be checked for damaged.

Another fairly common problem for the Lexus GS is code P0500, which means there is a problem with the vehicle speed sensor.

This can be seen if the speedometer is not performing properly. Another issue can come from the automatic transmission shifting erratically.

A faulty vehicle speed sensor is the main cause of the problem, and the one found in the GS is reportedly prone to failing. Issues within the sensor circuit can also cause this problem to arise.

This can mean fixing this problem can be relatively simple.