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.
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HOMESERVICE MANUALSTOYOTA2004CELICA GT, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 115 (ENGINE CONTROL SYSTEM SELF DIAGNOSTICS - V8)
2004 Toyota Celica GT, Standard
Section 115 (Engine Control System Self Diagnostics - V8)
2004 Toyota Celica GT, StandardSECTION Section 115 (Engine Control System Self Diagnostics - V8)
WARNING: This page is about a different car, the 2003 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
- Introduction
- Self-Diagnostic System
- Scan Tool Problems
- Summary
- Diagnostic Trouble Code Definitions
- Diagnostic Tests
- Notes
- DTC P0031, DTC P0032, DTC P0037, DTC P0038, DTC P0051, DTC P0052, DTC P0057 Or DTC P0058
- DTC P0100, DTC P0102 Or DTC P0103
- DTC P0101: Mass Airflow Meter Circuit Range/Performance
- DTC P0110, DTC P0112 Or DTC P0113
- DTC P0115, DTC P0117 Or DTC P0118
- DTC P0116: Engine Coolant Temperature Sensor Circuit Range/Performance Or DTC P0125: Insufficient Coolant Temperature For Closed Loop Fuel Control
- DTC P0120, DTC P0122, DTC P0123, DTC P0220, DTC P0222, DTC P0223 Or DTC P2135
- DTC P0121: Throttle Position Sensor Circuit Range/Performance
- DTC P0128: Coolant Thermostat Malfunction
- DTC P0130, DTC P0150, DTC P2195, DTC P2196, DTC P2197 Or DTC P2198
- DTC P0133: Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 1) Or DTC P0153: Oxygen Sensor Circuit Slow Response (Bank 2 Sensor 1)
- DTC P0134: Heated Oxygen Sensor Circuit No Activity Detected (Bank 1 Sensor 1) Or DTC P0154: Heated Oxygen Sensor Circuit No Activity Detected (Bank 2 Sensor 1)
- DTC P0136: Oxygen Sensor Malfunction (Bank 1 Sensor 2) Or DTC P0156: Oxygen Sensor Circuit Malfunction (Bank 2 Sensor 2)
- DTC P0171, DTC P0172, DTC P0174 Or DTC P0175
- DTC P0230: Fuel Pump Primary Circuit
- DTC P0300 Or DTC P0301, DTC P0302, DTC P0303, DTC P0304, DTC P0305, DTC P0306, DTC P0307, DTC P0308
- DTC P0325: Knock Sensor No. 1 Circuit Or DTC P0330: Knock Sensor No. 2 Circuit
- DTC P0335: Crankshaft Position Sensor "A" Circuit Or DTC P0339: Crankshaft Position Sensor "A" Circuit Intermittent
- DTC P0340: Camshaft Position Sensor "A" Circuit (Bank 1 Or Single Sensor) Or DTC P0341: Camshaft Position Sensor "A" Circuit Range/Performance (Single Sensor)
- DTC P0351, DTC P0352, DTC P0353, DTC P0354, DTC P0355, DTC P0356, DTC P0357 Or DTC P0358
- DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1) Or DTC P0430: Catalyst System Efficiency Below Threshold (Bank 2)
- DTC P0441, DTC P0442, DTC P0446 Or DTC P0456
- DTC P0451, DTC P0452 Or DTC P0453
- DTC P0500: Vehicle Speed Sensor "A" Circuit Or DTC P0503: Vehicle Speed Sensor "A" Intermittent/Erratic/High
- DTC P0504: Brake Switch "A"/"B" Correlation
- DTC P0505: Idle Control System Malfunction
- DTC P0571: Brake Switch "A" Circuit
- DTC P0560: System Voltage
- DTC P0604, DTC P0606, DTC P0607 & DTC P0657
- DTC P0617: Starter Relay Circuit High
- DTC P2102: Throttle Actuator Control Motor Circuit Low Or P2103: Throttle Actuator Control Motor Circuit High
- DTC P2111: Throttle Actuator Control System Stuck Open Or 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, DTC P2122, DTC P2123, DTC P2125, DTC P2127, DTC P2128 Or DTC P2138
- DTC P2121: Throttle/Pedal Position Sensor/Switch "D" Circuit Range/Performance
RENDER: 1.0x
NO RELATED
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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.