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.
2011 Suzuki Grand Vitara BaseFACTORY OEM SERVICE PROCEDURE
EVAP Control System Monitor
OPERATION (1 OF 2)
| DTCs | P0441 |
| Monitor execution | Once per driving cycle |
| Monitoring duration | 3 sec. |
OPERATION (2 OF 2)
| DTCs | P0456, P2404 |
| Monitor execution | Once per driving cycle |
| Monitoring duration | 712 sec. |
ENABLE CONDITIONS
| Parameter | Min. | Max. |
|---|---|---|
| P0441 | ||
| Purge accumulation | 70 sec. | - |
| Purge learn value for 60 sec. | - | 0.05 |
| EVAP vent valve | No DTC (P0449) | |
| EVAP leak check pressure sensor | No DTC (P2228, P2229) | |
| EVAP canister purge valve | No DTC (P0443) | |
| P0456, P2404 | ||
| Duration time from engine off | 5 hours | - |
| EVAP leak check pressure sensor | No DTC (P2228, P2229) | |
| EVAP vent valve | No DTC (P0449) | |
| EVAP leak detection pump | No DTC (P2400) | |
| EVAP canister purge valve | No DTC (P0443) | |
| IAT | 4.4 °C (39.9 °F) | 50 °C (122 °F) |
| ECT | 4.4 °C (39.9 °F) | 45 °C (113 °F) |
| Battery voltage | 11 V | - |
| Ignition switch | OFF | |
| Fuel level | - | 85% |
| Barometric pressure | 75 kPa | - |
TYPICAL MALFUNCTION THRESHOLDS
| P0441: Tank pressure change during EVAP vent valve switching < 1.26 kPa |
| P0456: Tank pressure > Reference pressure-2 |
| P2404: |
| Monitor 1: Tank pressure at vent valve on (close) < -0.14 kPa |
| Monitor 2: Reference pressure change > 0.36 kPa |
| Monitor 3: Reference pressure > -0.14 kPa |
| Monitor 4: Reference pressure < -4.3 kPa |
| Monitor 5: Reference pressure > -1.34 kPa |
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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