Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSLEXUS2004GX 470REPAIR AND DIAGNOSISGENERAL INFORMATIONDTC INDEXENGINE PERFORMANCE DTCS
2004 Lexus GX 470
Engine Performance DTCS
2004 Lexus GX 470SECTION Engine Performance DTCS
ENGINE PERFORMANCE DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| P0031 | OXYGEN SENSOR HEATER CONTROL CIRCUIT LOW (BANK 1 SENSOR 1) |
| P0032 | OXYGEN SENSOR HEATER CONTROL CIRCUIT HIGH (BANK 1 SENSOR 1) |
| P0037 | OXYGEN SENSOR HEATER CONTROL CIRCUIT LOW (BANK 1 SENSOR 2) |
| P0038 | OXYGEN SENSOR HEATER CONTROL CIRCUIT HIGH (BANK 1 SENSOR 2) |
| P0051 | OXYGEN SENSOR HEATER CONTROL CIRCUIT LOW (BANK 2 SENSOR 1) |
| P0052 | OXYGEN SENSOR HEATER CONTROL CIRCUIT HIGH (BANK 2 SENSOR 1) |
| P0057 | OXYGEN SENSOR HEATER CONTROL CIRCUIT LOW (BANK 2 SENSOR 2) |
| P0058 | OXYGEN SENSOR HEATER CONTROL CIRCUIT HIGH (BANK 2 SENSOR 2) |
| P0100 | MASS OR VOLUME AIR FLOW CIRCUIT |
| P0101 | MASS OR VOLUME AIR FLOW CIRCUIT RANGE/PERFORMANCE PROBLEM |
| P0102 | MASS OR VOLUME AIR FLOW CIRCUIT LOW INPUT |
| P0103 | MASS OR VOLUME AIR FLOW CIRCUIT HIGH INPUT |
| P0110 | INTAKE AIR TEMPERATURE CIRCUIT |
| P0112 | INTAKE AIR TEMPERATURE CIRCUIT LOW INPUT |
| P0113 | INTAKE AIR TEMPERATURE CIRCUIT HIGH INPUT |
| P0115 | ENGINE COOLANT TEMPERATURE CIRCUIT |
| P0116 | ENGINE COOLANT TEMPERATURE CIRCUIT RANGE/PERFORMANCE PROBLEM |
| P0117 | ENGINE COOLANT TEMPERATURE CIRCUIT HIGH INPUT |
| P0118 | ENGINE COOLANT TEMPERATURE CIRCUIT LOW INPUT |
| P0120 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT |
| P0121 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT RANGE/PERFORMANCE PROBLEM |
| P0122 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT LOW INPUT |
| P0123 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT HIGH INPUT |
| P0125 | INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL |
| P0128 | COOLANT THERMOSTAT (COOLANT TEMPERATURE BELOW THERMOSTAT REGULATING TEMPERATURE) |
| P0130 | OXYGEN SENSOR CIRCUIT (BANK 1 SENSOR 1) |
| P0133 | OXYGEN SENSOR CIRCUIT SLOW RESPONSE (BANK 1 SENSOR 1) |
| P0134 | OXYGEN SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SENSOR 1) |
| P0136 | OXYGEN SENSOR CIRCUIT MALFUNCTION (BANK 1 SENSOR 2) |
| P0150 | OXYGEN SENSOR CIRCUIT (BANK 2 SENSOR 1) |
| P0153 | OXYGEN SENSOR CIRCUIT SLOW RESPONSE (BANK 2 SENSOR 1) |
| P0154 | OXYGEN SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 2 SENSOR 1) |
| P0156 | OXYGEN SENSOR CIRCUIT MALFUNCTION (BANK 2 SENSOR 2) |
| P0171 | SYSTEM TOO LEAN (BANK 1) |
| P0172 | SYSTEM TOO RICH (BANK 1) |
| P0174 | SYSTEM TOO LEAN (BANK 2) |
| P0175 | SYSTEM TOO RICH (BANK 2) |
| P0220 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT |
| P0222 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT LOW INPUT |
| P0223 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT HIGH INPUT |
| P0230 | FUEL PUMP PRIMARY CIRCUIT |
| P0300 | RANDOM/MULTIPLE CYLINDER MISFIRE DETECTED |
| P0301 | CYLINDER 1 MISFIRE DETECTED |
| P0302 | CYLINDER 2 MISFIRE DETECTED |
| P0303 | CYLINDER 3 MISFIRE DETECTED |
| P0304 | CYLINDER 4 MISFIRE DETECTED |
| P0305 | CYLINDER 5 MISFIRE DETECTED |
| P0306 | CYLINDER 6 MISFIRE DETECTED |
| P0307 | CYLINDER 7 MISFIRE DETECTED |
| P0308 | CYLINDER 8 MISFIRE DETECTED |
| P0325 | KNOCK SENSOR 1 CIRCUIT (BANK 1 OR SINGLE SENSOR) |
| P0330 | KNOCK SENSOR 2 CIRCUIT (BANK 2) |
| P0335 | CRANKSHAFT POSITION SENSOR "A" CIRCUIT |
| P0339 | CRANKSHAFT POSITION SENSOR "A" CIRCUIT INTERMITTENT |
| P0340 | CAMSHAFT POSITION SENSOR "A" CIRCUIT (BANK 1 OR SINGLE SENSOR) |
| P0341 | CAMSHAFT POSITION SENSOR "A" CIRCUIT RANGE/PERFORMANCE (BANK 1 OR SINGLE SENSOR) |
| P0351 | IGNITION COIL "A" PRIMARY/SECONDARY CIRCUIT |
| P0352 | IGNITION COIL "B" PRIMARY/SECONDARY CIRCUIT |
| P0353 | IGNITION COIL "C" PRIMARY/SECONDARY CIRCUIT |
| P0354 | IGNITION COIL "D" PRIMARY/SECONDARY CIRCUIT |
| P0355 | IGNITION COIL "E" PRIMARY/SECONDARY CIRCUIT |
| P0356 | IGNITION COIL "F" PRIMARY/SECONDARY CIRCUIT |
| P0357 | IGNITION COIL "G" PRIMARY/SECONDARY CIRCUIT |
| P0358 | IGNITION COIL "H" PRIMARY/SECONDARY CIRCUIT |
| P0420 | CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 1) |
| P0430 | CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 2) |
| P0441 | EVAPORATIVE EMISSION CONTROL SYSTEM INCORRECT PURGE FLOW |
| P0442 | EVAPORATIVE EMISSION CONTROL SYSTEM LEAK DETECTED (SMALL LEAK) |
| P0446 | EVAPORATIVE EMISSION CONTROL SYSTEM VENT CONTROL MALFUNCTION |
| P0451 | EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR RANGE/PERFORMANCE |
| P0452 | EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR/SWITCH LOW INPUT |
| P0453 | EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR/SWITCH HIGH INPUT |
| P0455 | EVAPORATIVE EMISSION CONTROL SYSTEM LEAK DETECTED (GROSS LEAK) |
| P0456 | EVAPORATIVE EMISSION CONTROL SYSTEM LEAK DETECTED (VERY SMALL LEAK) |
| P0500 | VEHICLE SPEED SENSOR "A" |
| P0503 | VEHICLE SPEED SENSOR "A" INTERMITTENT/ERRATIC/HIGH |
| P0504 | BRAKE SWITCH "A"/"B" CORRELATION |
| P0505 | IDLE AIR CONTROL SYSTEM |
| P0560 | SYSTEM VOLTAGE |
| P0604 | INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY (RAM) ERROR |
| P0606 | ECM/PCM PROCESSOR |
| P0607 | CONTROL MODULE PERFORMANCE |
| P0617 | STARTER RELAY CIRCUIT HIGH |
| P0657 | ACTUATOR SUPPLY VOLTAGE CIRCUIT/OPEN |
| P2102 | THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW |
| P2103 | THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH |
| P2111 | THROTTLE ACTUATOR CONTROL SYSTEM - STUCK OPEN |
| P2112 | THROTTLE ACTUATOR CONTROL SYSTEM - STUCK CLOSED |
| P2118 | THROTTLE ACTUATOR CONTROL MOTOR CURRENT RANGE/PERFORMANCE |
| P2119 | THROTTLE ACTUATOR CONTROL THROTTLE BODY RANGE/PERFORMANCE |
| P2120 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT |
| P2121 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT RANGE/PERFORMANCE |
| P2122 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT LOW INPUT |
| P2123 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT HIGH INPUT |
| P2125 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "E" CIRCUIT |
| P2127 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "E" CIRCUIT LOW INPUT |
| P2128 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "E" CIRCUIT HIGH INPUT |
| P2135 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "A"/"B" VOLTAGE CORRELATION |
| P2138 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "D"/"E" VOLTAGE CORRELATION |
| P2195 | OXYGEN SENSOR SIGNAL STUCK LEAN (BANK 1 SENSOR 1) |
| P2196 | OXYGEN SENSOR SIGNAL STUCK RICH (BANK 1 SENSOR 1) |
| P2197 | OXYGEN SENSOR SIGNAL STUCK LEAN (BANK 2 SENSOR 1) |
| P2198 | OXYGEN SENSOR SIGNAL STUCK RICH (BANK 2 SENSOR 1) |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.