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.
Monitor Result
Refer to CHECKING MONITOR STATUS (see CHECKING MONITOR STATUS ).
The test value and test limit information are described in the following table. This information is included under Monitor Result in the emissions-related DTC sections:
- MID (Monitor Identification Data) is assigned to each emissions-related component.
- TID (Test Identification Data) is assigned to each test value.
- Scaling is used to calculate the test value indicated on generic OBD II scan tools.
EVAP - Key-off Type
| MID | TID | Scaling | Unit | Description | ||
|---|---|---|---|---|---|---|
| $3D | $C9 | Multiply by 0.001 | kPa | Test value for small leak (P0456) Refer to pressure D(1) |
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| $3D | $CA | Multiply by 0.001 | kPa | Test value for gross leak (P0455) Refer to pressure E(1) |
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| $3D | $CB | Multiply by 0.001 | kPa | Test value for leak detection pump stuck OFF (P2401) Refer to pressure A(1) |
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| $3D | $CD | Multiply by 0.001 | kPa | Test value for leak detection pump stuck ON (P2402) Refer to pressure A(1) |
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| $3D | $CE | Multiply by 0.001 | kPa | Test value for vent valve stuck OFF (vent) (P2420) Refer to pressure C(1) |
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| $3D | $CF | Multiply by 0.001 | kPa | Test value for vent valve stuck ON (P2419) Refer to pressure A(1) |
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| $3D | $D0 | Multiply by 0.001 | kPa | Test value for reference orifice low flow (P043E) Refer to pressure B(1) |
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| $3D | $D1 | Multiply by 0.001 | kPa | Test value for reference orifice high flow (P043F) Refer to pressure A(1) |
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| $3D | $D4 | Multiply by 0.001 | kPa | Test value for purge VSV stuck closed (P0441) Refer to pressure F(1) |
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| $3D | $D5 | Multiply by 0.001 | kPa | Test value for purge VSV stuck open (P0441) Refer to pressure E(1) |
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| $3D | $D7 | Multiply by 0.001 | kPa | Test value for purge flow insufficient (P0441) Refer to pressure G(1) |
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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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