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 Outlander LS, AWDFACTORY OEM SERVICE PROCEDURE
Diagnostic Trouble Code Definitions
NOTE:
DTCs can only be retrieved by using a scan tool. See RETRIEVING DIAGNOSTIC TROUBLE CODES
under SELF-DIAGNOSTIC SYSTEM.
When DTC is retrieved, refer to appropriate DTC test procedure under DIAGNOSTIC TESTS .
DIAGNOSTIC TROUBLE CODE DEFINITIONS
| DTC (1) | Definition | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| P0101 | Volume Air Flow Circuit Range/Performance | ||||||||
| P0102 | Volume Air Flow Circuit Low Input | ||||||||
| P0106 (2) | Barometric Pressure Circuit Range/Performance | ||||||||
| P0107 | Barometric Pressure Circuit Low Input | ||||||||
| P0108 | Barometric Pressure Circuit High Input | ||||||||
| P0111 | Intake Air Temperature Circuit Malfunction | ||||||||
| P0112 | Intake Air Temperature Circuit Low Input | ||||||||
| P0113 | Intake Air Temperature Circuit High Input | ||||||||
| P0116 | Engine Coolant Temperature Circuit Range/Performance | ||||||||
| P0117 | Engine Coolant Temperature Circuit Low Input | ||||||||
| P0118 | Engine Coolant Temperature Circuit High Input | ||||||||
| P0121 | Throttle Position Sensor Circuit Range/Performance | ||||||||
| P0122 | Throttle Position Sensor Circuit Low Input | ||||||||
| P0123 | Throttle Position Sensor Circuit High Input | ||||||||
| P0125 | Insufficient Coolant Temperature For Closed Loop Fuel Control | ||||||||
| P0128 | Coolant Thermostat Malfunction | ||||||||
| P0130 | Heated Oxygen Sensor Circuit (Sensor 1) | ||||||||
| P0131 | Heated Oxygen Sensor Circuit Low Voltage (Sensor 1) | ||||||||
| P0132 | Heated Oxygen Sensor Circuit High Voltage (Sensor 1) | ||||||||
| P0133 | Heated Oxygen Sensor Circuit Slow Response (Sensor 1) | ||||||||
| P0134 (2) | Heated Oxygen Sensor Circuit No Activity Detected (Sensor 1) | ||||||||
| P0135 | Heated Oxygen Sensor Heater Circuit (Sensor 1) | ||||||||
| P0136 | Heated Oxygen Sensor Circuit (Sensor 2) | ||||||||
| P0137 | Heated Oxygen Sensor Circuit Low Voltage (Sensor 2) | ||||||||
| P0138 | Heated Oxygen Sensor Circuit High Voltage (Sensor 2) | ||||||||
| P0139 | Heated Oxygen Sensor Circuit Slow Response (Sensor 2) | ||||||||
| P0141 | Heated Oxygen Sensor Heater Circuit (Sensor 2) | ||||||||
| P0171 | System Too Lean Fuel Trim Circuit | ||||||||
| P0172 | System Too Rich Fuel Trim Circuit | ||||||||
| P0181 | Fuel Temperature Sensor Circuit Range/Performance | ||||||||
| P0182 | Fuel Temperature Sensor Circuit Low Input | ||||||||
| P0183 | Fuel Temperature Sensor Circuit High Input | ||||||||
| P0201-P0204 | Injector Circuit | ||||||||
| P0300 | Random/Multiple Cylinder Misfire Detected | ||||||||
| P0301-P0304 | Cylinder 1 Misfire Detected, Cylinder 2 Misfire Detected, Cylinder 3 Misfire Detected, Cylinder 4 Misfire Detected | ||||||||
| P0325 | Knock Sensor Circuit | ||||||||
| P0335 | Crankshaft Position Sensor Circuit | ||||||||
| P0340 | Camshaft Position Sensor Circuit | ||||||||
| P0401 | Exhaust Gas Recirculation Flow Insufficient Detected | ||||||||
| P0403 | Exhaust Gas Recirculation Control Circuit | ||||||||
| P0421 | Warm Up Catalyst Efficiency Below Threshold | ||||||||
| P0441 | Evaporative Emission Control System Incorrect Purge Flow | ||||||||
| P0442 | Evaporative Emission Control System Leak Detected (Small Leak) | ||||||||
| P0443 | Evaporative Emission Control System Purge Control Valve | ||||||||
| P0446 | Evaporative Emission Control System Vent Control Circuit | ||||||||
| P0451 | Evaporative Emission Control System Pressure Sensor Range/Performance | ||||||||
| P0452 | Evaporative Emission Control System Pressure Sensor Low Input | ||||||||
| P0453 | Evaporative Emission Control System Pressure Sensor High Input | ||||||||
| P0455 | Evaporative Emission Control System Leak Detected (Gross Leak) | ||||||||
| P0456 | Evaporative Emission Control System Leak Detected (Very Small Leak) | ||||||||
| P0461 (3) | Fuel Level Sensor Circuit Range/Performance (FWD) | ||||||||
| P0461 (4) | Fuel Level Sensor Circuit Range/Performance (Sensor 1) (4WD) | ||||||||
| P0506 | Idle Control System RPM Less Than Expected Idle Air Control Motor Circuit | ||||||||
| P0507 | Idle Control System RPM More Than Expected Idle Air Control Motor Circuit | ||||||||
| P0551 | Power Steering Pressure Switch Circuit Range/Performance | ||||||||
| P0554 | Power Steering Pressure Sensor Circuit Intermittent | ||||||||
| P0622 | Generator FR Terminal Circuit Malfunction | ||||||||
| P1400 | Manifold Differential Pressure Sensor | ||||||||
| P1603 (2) | Battery Backup Circuit Malfunction | ||||||||
| P2066 (4) | Fuel Level Sensor Circuit Range/Performance (Sensor 2) (4WD) | ||||||||
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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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