Diagnostic Trouble Code Definitions

WARNING: This page is about a different car, the 2003 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC ⁽¹⁾

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 ⁽³⁾

Mass Airflow Meter Circuit

P0101

Mass Airflow Meter Circuit Range/Performance

P0102 ⁽³⁾

Mass Airflow Meter Circuit Low Input

P0103 ⁽³⁾

Mass Airflow Meter Circuit High Input

P0110 ⁽³⁾

Intake Air Temperature Sensor Circuit

P0112 ⁽³⁾

Intake Air Temperature Sensor Circuit Low Input

P0113 ⁽³⁾

Intake Air Temperature Sensor Circuit High Input

P0115 ⁽³⁾

Engine Coolant Temperature Sensor Circuit

P0116

Engine Coolant Temperature Sensor Circuit Range/Performance

P0117 ⁽³⁾

Engine Coolant Temperature Sensor Circuit Low Input

P0118 ⁽³⁾

Engine Coolant Temperature Sensor Circuit High Input

P0120 ⁽³⁾

Throttle Position Sensor/Switch A - Circuit

P0121

Throttle Position Sensor/Switch A - Circuit Range/Performance

P0122 ⁽³⁾

Throttle Position Sensor/Switch A - Circuit Low Input

P0123 ⁽³⁾

Throttle Position Sensor/Switch A - Circuit High Input

P0125

Insufficient Coolant Temperature For Closed Loop Fuel Control

P0128

Thermostat Malfunction

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 (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 No. 1 Misfire Detected

P0302

Cylinder No. 1 Misfire Detected

P0303

Cylinder No. 3 Misfire Detected

P0304

Cylinder No. 4 Misfire Detected

P0305

Cylinder No. 5 Misfire Detected

P0306

Cylinder No. 6 Misfire Detected

P0307

Cylinder No. 7 Misfire Detected

P0308

Cylinder No. 8 Misfire Detected

P0325 ⁽³⁾

Knock Sensor No. 1 Circuit (Bank 1)

P0330 ⁽³⁾

Knock Sensor No. 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)

P0341

Camshaft Position Sensor A Circuit Range/Performance (Bank 1)

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/Switch Range/Performance

P0452

Evaporative Emission Control System Pressure Sensor/Switch Low Input

P0453

Evaporative Emission Control System Pressure Sensor/Switch High Input

P0456

Evaporative Emission Control System Leak Detected (Very Small Leak)

P0500

Vehicle Speed Sensor A Circuit Malfunction

P0503

Vehicle Speed Sensor A Circuit Intermittent/Erratic/High

P0504

Brake Switch Correlation

P0505

Idle Control System Malfunction

P0560

System Voltage

P0571

Brake Switch A - Circuit

P0604

Internal Control Module RAM Error

P0606

Engine Control Module Processor

P0607

Control Module Performance

P0617

Starter Relay Circuit High

P0657

Actuator Supply Voltage Circuit Open

P0705 ⁽⁴⁾

Transmission Range Sensor Circuit Malfunction (PRNDL Input)

P0710 ⁽⁴⁾

Transmission Fluid Temp. Sensor A - Circuit

P0711 ⁽⁴⁾

Transmission Fluid Temp. Sensor A - Circuit Range/Performance

P0712 ⁽⁴⁾

Transmission Fluid Temp. Sensor A - Circuit Low Input

P0713 ⁽⁴⁾

Transmission Fluid Temp. Sensor A - Circuit High Input

P0717 ⁽⁴⁾

Input/Turbine Speed Sensor Circuit No Signal

P0722 ⁽⁴⁾

Output Speed Sensor Circuit No Signal

P0724 ⁽⁴⁾

Stoplight Switch B Signal Circuit High

P0748 ⁽⁴⁾

Pressure Control Solenoid Valve A - Electrical

P0751 ⁽⁴⁾

Shift Solenoid Valve A - Malfunction

P0756 ⁽⁴⁾

Shift Solenoid Valve B - Malfunction

P0771 ⁽⁴⁾

Shift Solenoid Valve E - Malfunction

P0776 ⁽⁴⁾

Pressure Control Solenoid Valve B - Performance/Stuck Off

P0778 ⁽⁴⁾

Pressure Control Solenoid Valve B - Electrical

P0781 ⁽⁴⁾

1-2 Shift

P0973 ⁽⁴⁾

Shift Solenoid Valve A - Control Circuit Low

P0974 ⁽⁴⁾

Shift Solenoid Valve A - Control Circuit High

P0976 ⁽⁴⁾

Shift Solenoid Valve B - Control Circuit Low

P0977 ⁽⁴⁾

Shift Solenoid Valve B - Control Circuit High

P0985 ⁽⁴⁾

Shift Solenoid Valve E - Control Circuit Low

P0986 ⁽⁴⁾

Shift Solenoid Valve E - Control Circuit High

P1782 ⁽⁵⁾

Transfer L4 Switch Circuit Malfunction

P2102

Throttle Actuator Control Motor Circuit Low Input

P2103

Throttle Actuator Control Motor Circuit High Input

P2111

Throttle Actuator Control System Stuck Open

P2112

Throttle Actuator Control System Stuck Closed

P2118

Throttle Actuator Control Motor Current Range/Performance Problem

P2119

Throttle Actuator Control
Throttle Body Range/Performance Problem

P2120

Throttle Pedal Position Sensor/Switch D Circuit Malfunction

P2121

Throttle Pedal Position Sensor/Switch D Circuit Range/Performance Problem

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 Malfunction

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)

P2714 ⁽⁴⁾

Pressure Control Solenoid Valve D - Performance/Stuck Off

P2716 ⁽⁴⁾

Pressure Control Solenoid Valve D - Electrical

P2743 ⁽⁴⁾

Transmission Fluid Temperature Sensor B Circuit High

P2757 ⁽⁴⁾

Torque Converter Clutch Pressure Control Solenoid Control Circuit Performance/Stuck Off

P2759 ⁽⁴⁾

Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical

B2799 ⁽²⁾

Engine Immobilizer System Malfunction

⁽¹⁾	Some DTCs are two-trip detection logic DTCs. For more information, see TWO-TRIP DETECTION LOGIC under SELF-DIAGNOSTIC SYSTEM.

⁽²⁾	DTC applies to models equipped with engine immobilizer system. MIL will not illuminate if DTC exists. For testing procedures, see appropriate ENGINE IMMOBILIZER SYSTEMS article in ACCESSORIES & EQUIPMENT.

⁽³⁾	If this DTC is set, Engine Control Module (ECM) will enter fail-safe mode.

⁽⁴⁾	DTC applies to electronically controlled automatic transmission. For testing procedures, see appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS.

⁽⁵⁾	DTC applies to 4WD models. For testing procedures, see appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS.