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.
2003 Acura RSX Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Engine Performance System Self-Diagnostics
- Introduction
- Self-Diagnostic System
- Diagnostic Circuit Check
- Drive Cycles
- Summary
- Diagnostic Trouble Code Definitions
- Connector Identification
- Test Equipment
- Diagnostic Tests
- DTC P0010: Variable Valve Timing Control Oil Control Solenoid Valve Malfunction
- DTC P0011: Variable Valve Timing Control System Malfunction
- DTC P0107: Manifold Absolute Pressure Sensor Low Input Voltage
- DTC P0108: Manifold Absolute Pressure Sensor High Input Voltage
- DTC P0112: Intake Air Temperature Sensor Low Input Voltage
- DTC P0113: Intake Air Temperature Sensor High Input Voltage
- DTC P0116: Engine Coolant Temperature Sensor Range/Performance Problem
- DTC P0117: Engine Coolant Temperature Sensor Low Input Voltage
- DTC P0118: Engine Coolant Temperature Sensor High Input Voltage
- DTC P0122: Throttle Position Sensor Low Input Voltage
- DTC P0123: Throttle Position Sensor High Input Voltage
- DTC P0128: Cooling System Malfunction
- DTC P0134: Air/Fuel Ratio (A/F) Sensor Signal Stuck Lean (Sensor 1)
- DTC P0137: Secondary Heated Oxygen Sensor Low Output Voltage (Sensor 2)
- DTC P0138: Secondary Heated Oxygen Sensor High Voltage
- DTC P0139: Secondary Heated Oxygen Sensor (H02S-2) Slow Response
- DTC P0141: Secondary Heated Oxygen Sensor Heater Circuit Malfunction
- DTC P0171 Or DTC P0172
- DTC P0300: Random Misfire Detected
- DTC P0301, DTC P0302, DTC P0303 Or DTC P0304
- DTC P0325: Knock Sensor Circuit Malfunction
- DTC P0335 Or DTC P0336
- DTC P0340 Or DTC P0344
- DTC P0341: Variable Valve Timing Control Phase Gap
- DTC P0420: Catalyst System Efficiency Below Threshold
- DTC P0451: Fuel Tank Pressure Sensor Circuit Range/Performance Problem
- DTC P0452: Fuel Tank Pressure Sensor Low Voltage
- DTC P0453: Fuel Tank Pressure Sensor High Voltage
- DTC P0500: Vehicle Speed Sensor Circuit Malfunction (M/T)
- DTC P0505: Idle Control System Malfunction
- DTC P0563: Power Control Module Power Source Circuit Unexpected Voltage
- DTC P0661: Intake Manifold Runner Control Valve Position Sensor Circuit Low Voltage
- DTC P0662: Intake Manifold Runner Control Valve Position Sensor Circuit High Voltage
- DTC P1077: Intake Manifold Runner Control System Malfunction (Low Rpm)
- DTC P1078: Intake Manifold Runner Control System Malfunction (High Rpm)
- DTC P1106: Barometric Pressure Sensor Range/Performance
- DTC P1107 Or DTC P1108
- DTC P1121: Throttle Position Sensor Signal Lower Than Expected
- DTC P1122: Throttle Position Sensor Signal Higher Than Expected
- DTC P1128: Manifold Absolute Pressure Sensor Signal Lower Than Expected
- DTC P1129: Manifold Absolute Pressure Sensor Signal Higher Than Expected
- DTC P1162: Air/Fuel Ratio Sensor Circuit Malfunction (Sensor 1)
- DTC P1163: Air/Fuel Ratio Sensor Slow Response (Sensor 1)
- DTC P1164: Air/Fuel Ratio Sensor Range Performance Problem (Sensor 1)
- DTC P1166: Air/Fuel Ratio Sensor Heater Circuit Malfunction (Sensor 1)
- DTC P1167: Air/Fuel Ratio Sensor Heater System Malfunction (Sensor 1)
- DTC P1259: Variable Valve Timing & Lift Electronic Control System Malfunction
- DTC P1297: Electrical Load Detector Circuit Low Voltage
- DTC P1298: Electrical Load Detector Circuit High Voltage
- DTC P1361 Or DTC P1362
- DTC P1456: Evaporative Emission Control System Leak Detected (Fuel Tank System)
- DTC P1457: Evaporative Emission Control System Leak Detected (EVAP Control Canister System)
- DTC P1519: Idle Air Control Valve Circuit Malfunction
- DTC P1607: Engine Control Module/Powertrain Control Module Internal Circuit Malfunction
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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