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 MANUALSJEEP2009PATRIOT SPORT, 2.0 AREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISDTCS P0353 TO P0503 (GAS)
2009 Jeep Patriot Sport, 2.0 A
DTCS P0353 To P0503 (Gas)
2009 Jeep Patriot Sport, 2.0 ASECTION DTCS P0353 To P0503 (Gas)
- P0353-Ignition Coil 3 Circuit
- P0354-Ignition Coil 4 Circuit
- P0365-Camshaft Position Sensor Circuit-Bank 1 Sensor 2
- P0366-Camshaft Position Sensor Performance-Bank 1 Sensor 2
- P0369-Camshaft Position Sensor Intermittent-Bank 1 Sensor 2
- P0418-Secondary Air Injection System Control Circuit
- P0420-Catalyst Efficiency (Bank 1)
- P0440-General EVAP System Failure
- P0441-EVAP Purge System Performance
- P0443-EVAP Purge Solenoid Circuit
- P0444-EVAP Purge Solenoid Circuit Open
- P0452-EVAP Pressure Switch Stuck Closed
- P0455-EVAP System Large Leak
- P0456-EVAP System Small Leak
- P0457-Loose Fuel Cap
- P0458-EVAP Purge Solenoid Circuit Low
- P0459-EVAP Purge Solenoid Circuit High
- P0461-Fuel Level Sensor 1 Performance
- P0462-Fuel Level Sensor 1 Low Circuit
- P0463-Fuel Level Sensor 1 High Circuit
- P0480-Cooling Fan 1 Control Circuit
- P0481-Cooling Fan 2 Control Circuit
- P0491-Secondary Air Injection System Insufficient Flow
- P0501-Vehicle Speed Sensor 1 Performance
- P0501-Vehicle Speed Sensor 1 Performance (MTX Non-Abs)
- P0503-Vehicle Speed Sensor 1 Erratic (Exc MTX Non-Abs)
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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.