LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 1999 >> Corolla LE, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics >> Diagnostic Trouble Code Definitions
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Trouble Code Definitions

DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC (1) Description
P0105  Manifold Absolute Pressure (Map)/Barometric Pressure Sensor Circuit
P0106  Manifold Absolute Pressure (Map)/Barometric Pressure Sensor Circuit Range/Performance
P0110  Intake Air Temperature (IAT) Sensor Circuit
P0115  Engine Coolant Temperature (ECT) Sensor Circuit
P0116  Engine Coolant Temperature (ECT) Sensor Circuit Range/Performance
P0120  Throttle Position (TP) Sensor Circuit
P0121  Throttle Position (TP) Sensor Circuit Range/Performance
P0125  Insufficient Coolant Temperature For Closed Loop Fuel Control
P0130  Heated Oxygen Sensor No. 1 Circuit
P0133  Heated Oxygen Sensor No. 1 Circuit Slow Response
P0135  Heated Oxygen Sensor No. 1 Heater Circuit
P0136  Heated Oxygen Sensor No. 2 Circuit
P0141  Heated Oxygen Sensor No. 2 Heater Circuit
P0171  System Too Lean
P0172  System Too Rich
P0300  Random Misfire Detected
P0301  Cylinder No. 1 Misfire Detected
P0302  Cylinder No. 2 Misfire Detected
P0303  Cylinder No. 3 Misfire Detected
P0304  Cylinder No. 4 Misfire Detected
P0325  Knock Sensor Circuit
P0335  Crankshaft Position (CKP) Sensor Circuit
P0340  Camshaft Position (CMP) Sensor Circuit
P0420  Catalyst System Efficiency Below Threshold
P0440  Evaporative Emission Control System (EVAP)
P0441  Incorrect EVAP Purge Flow
P0446  EVAP Vent Control Circuit
P0450  EVAP Pressure Sensor Circuit
P0451  EVAP Pressure Sensor Range/Performance
P0500  Vehicle Speed Sensor Circuit
P0505  Idle Air Control (IAC) System Circuit
P0750 (2) Shift Solenoid Valve No. 1 Malfunction
P0753 (2) Shift Solenoid Valve No. 1 Electrical Malfunction
P0755 (2) Shift Solenoid Valve No. 2 Malfunction
P0758 (2) Shift Solenoid Valve No. 2 Electrical Malfunction
P0770 (2) Lock-Up Solenoid Malfunction
P0773 (2) Lock-Up Solenoid Circuit Electrical Malfunction
P1300  Ignitor No. 1 Circuit
P1310  Ignitor No 2. Circuit
P1335  Crankshaft Position (CKP) Sensor Circuit
P1520  Stoplight Switch Signal Circuit (A/T Only)
P1600  ECM BATT Circuit
P1780  Park/Neutral Position (PNP) Switch Circuit
(1) Some codes are two-trip detection logic code(s). For more information, see TWO-TRIP DETECTION LOGIC in SELF-DIAGNOSTICS - INTRODUCTION article.
(2) These codes only apply to models with electronically controlled transmissions. For testing procedures, see appropriate ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS.
scientia non olet · About LEMON Manuals