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 Mitsubishi Lancer LSFACTORY OEM SERVICE PROCEDURE
Diagnostic Trouble Code Procedures - Except Evolution
- DTC
- Notes
- DTC 11: TP Sensor System (Short Circuit)
- DTC 12: TP Sensor System (Open Circuit)
- DTC 14: TP Sensor System (Maladjusted Sensor)
- DTC 15: A/T Fluid Temperature Sensor System (Open Circuit)
- DTC 16: A/T Fluid Temperature Sensor System (Short Circuit)
- DTC 21: Crankshaft Position Sensor System
- DTC 22: Input Shaft Speed Sensor System
- DTC 23: Output Shaft Speed Sensor System
- DTC 26: Stoplight Switch System
- DTC 27: Park/Neutral Position Switch System (Open Circuit)
- DTC 28: Park/Neutral Position Switch System (Short Circuit)
- DTC 31: Low-Reverse Solenoid Valve System
- DTC 32: Underdrive Solenoid Valve System
- DTC 33: Second Solenoid Valve System
- DTC 34: Overdrive Solenoid Valve System
- DTC 36: Torque Converter Clutch Solenoid Valve System
- DTC 41: 1st Gear Incorrect Ratio, DTC 42: 2nd Gear Incorrect Ratio, DTC 43: 3rd Gear Incorrect Ratio, DTC 44: 4th Gear Incorrect Ratio, DTC 46: Reverse Gear Incorrect Ratio
- DTC 52: Torque Converter Clutch System
- DTC 53: Torque Converter Clutch is Stuck On
- DTC 54: A/T Control Relay System
Factory Service Tools
Use the Manual With the Right Hardware
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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.