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.
2004 Toyota Land CruiserFACTORY OEM SERVICE PROCEDURE
Diagnostic Trouble Code Chart
HINT:
Parameters listed in the chart may not be exactly the same as your reading due to the type of instrument or other factors.
If a malfunction code is displayed during the DTC check in check mode, check the circuit for the codes listed in the table. Also see Fig 1-Fig 8 .
DTC INDEX
| DTC | Description |
|---|---|
| DTC P0031 | OXYGEN SENSOR HEATER CONTROL CIRCUIT LOW (BANK 1 SENSOR 1) |
| DTC P0032 | OXYGEN SENSOR HEATER CONTROL CIRCUIT HIGH (BANK 1 SENSOR 1) |
| DTC P0037 | OXYGEN SENSOR HEATER CONTROL CIRCUIT LOW (BANK 1 SENSOR 2) |
| DTC P0038 | OXYGEN SENSOR HEATER CONTROL CIRCUIT HIGH (BANK 1 SENSOR 2) |
| DTC P0051 | OXYGEN SENSOR HEATER CONTROL CIRCUIT LOW (BANK 2 SENSOR 1) |
| DTC P0052 | OXYGEN SENSOR HEATER CONTROL CIRCUIT HIGH (BANK 2 SENSOR 1) |
| DTC P0057 | OXYGEN SENSOR HEATER CONTROL CIRCUIT LOW (BANK 2 SENSOR 2) |
| DTC P0058 | OXYGEN SENSOR HEATER CONTROL CIRCUIT HIGH (BANK 2 SENSOR 2) |
| DTC P0100 | MASS OR VOLUME AIR FLOW CIRCUIT |
| DTC P0101 | MASS OR VOLUME AIR FLOW CIRCUIT RANGE/PERFORMANCE PROBLEM |
| DTC P0102 | MASS OR VOLUME AIR FLOW CIRCUIT LOW INPUT |
| DTC P0103 | MASS OR VOLUME AIR FLOW CIRCUIT HIGH INPUT |
| DTC P0110 | INTAKE AIR TEMPERATURE CIRCUIT |
| DTC P0112 | INTAKE AIR TEMPERATURE CIRCUIT LOW INPUT |
| DTC P0113 | INTAKE AIR TEMPERATURE CIRCUIT HIGH INPUT |
| DTC P0115 | ENGINE COOLANT TEMPERATURE CIRCUIT |
| DTC P0117 | ENGINE COOLANT TEMPERATURE CIRCUIT LOW INPUT |
| DTC P0118 | ENGINE COOLANT TEMPERATURE CIRCUIT HIGH INPUT |
| DTC P0116 | ENGINE COOLANT TEMPERATURE CIRCUIT RANGE/PERFORMANCE PROBLEM |
| DTC P0120 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT |
| DTC P0121 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT RANGE/PERFORMANCE PROBLEM |
| DTC P0122 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT LOW INPUT |
| DTC P0123 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT HIGH INPUT |
| DTC P0125 | INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL |
| DTC P0128 | COOLANT THERMOSTAT (COOLANT TEMPERATURE BELOW THERMOSTAT REGULATING TEMPERATURE) |
| DTC P0130 | OXYGEN SENSOR CIRCUIT (BANK 1 SENSOR 1) |
| DTC P0133 | OXYGEN SENSOR CIRCUIT SLOW RESPONSE (BANK 1 SENSOR 1) |
| DTC P0134 | OXYGEN SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SENSOR 1) |
| DTC P0136 | OXYGEN SENSOR CIRCUIT MALFUNCTION (BANK 1 SENSOR 2) |
| DTC P0150 | OXYGEN SENSOR CIRCUIT (BANK 2 SENSOR 1) |
| DTC P0153 | OXYGEN SENSOR CIRCUIT SLOW RESPONSE (BANK 2 SENSOR 1) |
| DTC P0154 | OXYGEN SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 2 SENSOR 1) |
| DTC P0156 | OXYGEN SENSOR CIRCUIT MALFUNCTION (BANK 2 SENSOR 2) |
| DTC P0171 | SYSTEM TOO LEAN (BANK 1) |
| DTC P0172 | SYSTEM TOO RICH (BANK 1) |
| DTC P0174 | SYSTEM TOO LEAN (BANK 2) |
| DTC P0175 | SYSTEM TOO RICH (BANK 2) |
| DTC P0220 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT |
| DTC P0222 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT LOW INPUT |
| DTC P0223 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT HIGH INPUT |
| DTC P0230 | FUEL PUMP PRIMARY CIRCUIT |
| DTC P0300 | RANDOM/MULTIPLE CYLINDER MISFIRE DETECTED |
| DTC P0301 | CYLINDER 1 MISFIRE DETECTED |
| DTC P0302 | CYLINDER 2 MISFIRE DETECTED |
| DTC P0303 | CYLINDER 3 MISFIRE DETECTED |
| DTC P0304 | CYLINDER 4 MISFIRE DETECTED |
| DTC P0305 | CYLINDER 5 MISFIRE DETECTED |
| DTC P0306 | CYLINDER 6 MISFIRE DETECTED |
| DTC P0307 | CYLINDER 7 MISFIRE DETECTED |
| DTC P0308 | CYLINDER 8 MISFIRE DETECTED |
| DTC P0325 | KNOCK SENSOR 1 CIRCUIT (BANK 1 OR SINGLE SENSOR) |
| DTC P0330 | KNOCK SENSOR 2 CIRCUIT (BANK 2) |
| DTC P0335 | CRANKSHAFT POSITION SENSOR "A" CIRCUIT |
| DTC P0339 | CRANKSHAFT POSITION SENSOR "A" CIRCUIT INTERMITTENT |
| DTC P0340 | CAMSHAFT POSITION SENSOR "A" CIRCUIT (BANK 1 OR SINGLE SENSOR) |
| DTC P0341 | CAMSHAFT POSITION SENSOR "A" CIRCUIT RANGE/PERFORMANCE (SINGLE SENSOR) |
| DTC P0351 | IGNITER COIL "A" PRIMARY/SECONDARY CIRCUIT |
| DTC P0352 | IGNITER COIL "B" PRIMARY/SECONDARY CIRCUIT |
| DTC P0353 | IGNITER COIL "C" PRIMARY/SECONDARY CIRCUIT |
| DTC P0354 | IGNITER COIL "D" PRIMARY/SECONDARY CIRCUIT |
| DTC P0355 | IGNITER COIL "E" PRIMARY/SECONDARY CIRCUIT |
| DTC P0356 | IGNITER COIL "F" PRIMARY/SECONDARY CIRCUIT |
| DTC P0357 | IGNITER COIL "G" PRIMARY/SECONDARY CIRCUIT |
| DTC P0358 | IGNITER COIL "H" PRIMARY/SECONDARY CIRCUIT |
| DTC P0420 | CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 1) |
| DTC P0430 | CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 2) |
| DTC P0441 | EVAPORATIVE EMISSION CONTROL SYSTEM INCORRECT PURGE FLOW |
| DTC P0442 | EVAPORATIVE EMISSION CONTROL SYSTEM LEAK DETECTED (SMALL LEAK) |
| DTC P0446 | EVAPORATIVE EMISSION CONTROL SYSTEM VENT CONTROL CIRCUIT |
| DTC P0451 | EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR/SWITCH RANGE/PERFORMANCE |
| DTC P0452 | EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR/SWITCH RANGE/PERFORMANCE |
| DTC P0453 | EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR/SWITCH HIGH INPUT |
| DTC P0455 | EVAPORATIVE EMISSION CONTROL SYSTEM LEAK DETECTED (GROSS LEAK) |
| DTC P0456 | EVAPORATIVE EMISSION CONTROL SYSTEM LEAK DETECTED (VERY SMALL LEAK) |
| DTC P0500 | VEHICLE SPEED SENSOR "A" |
| DTC P0503 | VEHICLE SPEED SENSOR "A" INTERMITTENT/ERRATIC/HIGH |
| DTC P0504 | BRAKE SWITCH "A"/"B" CORRELATION |
| DTC P0505 | IDLE AIR CONTROL SYSTEM |
| DTC P0560 | SYSTEM VOLTAGE |
| DTC P0604 | INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY (RAM) ERROR |
| DTC P0606 | ECM/PCM PROCESSOR |
| DTC P0617 | STARTER RELAY CIRCUIT HIGH |
| DTC P0657 | ACTUATOR SUPPLY VOLTAGE CIRCUIT / OPEN |
| DTC P2102 | THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW |
| DTC P2103 | THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH |
| DTC P2111 | THROTTLE ACTUATOR CONTROL SYSTEM - STUCK OPEN |
| DTC P2112 | THROTTLE ACTUATOR CONTROL SYSTEM - STUCK CLOSED |
| DTC P2118 | THROTTLE ACTUATOR CONTROL MOTOR CURRENT RANGE/PERFORMANCE |
| DTC P2119 | THROTTLE ACTUATOR CONTROL THROTTLE BODY RANGE/PERFORMANCE |
| DTC P2120 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT |
| DTC P2121 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT RANGE/PERFORMANCE |
| DTC P2122 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT LOW INPUT |
| DTC P2123 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT HIGH INPUT |
| DTC P2125 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "E" CIRCUIT |
| DTC P2127 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "E" CIRCUIT LOW INPUT |
| DTC P2128 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "E" CIRCUIT HIGH INPUT |
| DTC P2135 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "A"/"B" VOLTAGE CORRECTION |
| DTC P2138 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "D"/"E" VOLTAGE CORRELATION |
| DTC P2195 | OXYGEN SENSOR SIGNAL STACK LEAN (BANK 1 SENSOR 1) |
| DTC P2196 | OXYGEN SENSOR SIGNAL STACK RICH (BANK 1 SENSOR 1) |
| DTC P2197 | OXYGEN SENSOR SIGNAL STACK LEAN (BANK 2 SENSOR 1) |
| DTC P2198 | OXYGEN SENSOR SIGNAL STACK RICH (BANK 2 SENSOR 1) |
| DTC P2418 | EVAPORATIVE EMISSION SYSTEM VALVE CONTROL CIRCUIT/OPEN |
Factory Service Tools
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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.
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