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.
Inspection Procedure
HINT:
- Using the Techstream monitor results enables the EVAP system to be confirmed.
- Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air/fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.
- CONFIRM DTC
- Turn the ignition switch OFF and wait for 10 seconds.
- Turn the ignition switch ON.
- Turn the ignition switch OFF and wait for 10 seconds.
- Connect the Techstream to the DLC3.
- Turn the ignition switch ON.
- Enter the following menus: Powertrain/Engine and ECT/Trouble Codes.
- Confirm DTCs and freeze frame data.
If any EVAP system DTCs are set, the malfunctioning area can be determined using the table below.
NOTE: If the 0.02 inch leak criterion difference between the first and second checks is greater than the specification, the DTCs corresponding to the 0.02 inch leak criterion (P043E, P043F, P0441, P0455, P0456, P2401 and P2420) will all be stored.
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.
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