TSB's

Toyota EVAP

Some 2014-2018 Toyota Corolla vehicles equipped with a 2ZR-FE or 2ZR-FAE engine may exhibit a MIL on condition, the DTC P2420 (evaporative emission pressure switching valve stuck off).

If P2420 is stored, replace the charcoal canister assembly and install the new filter sub-assembly.

Clear all DTCs and run the EVAP system check utility (Engine and ECT > Utility > EVAP System Check).

PART ................................................. P/N

Charcoal canister assembly.................77740-02220

Filter sub-assembly.............................77706-12020

Clamp..................................................90463-13003

Disconnect and remove the air line tube.
<p>Disconnect and remove the air line tube.</p>

Remove the bolt from the charcoal canister assembly (12 mm wrench)
<p>Remove the bolt from the charcoal canister assembly (12 mm wrench)</p>

Install the new filter sub-assembly by sliding the metal bracket between the charcoal canister assembly and the vehicle frame and reinstall the bolt, torqued to 14 ft.-lbs.
<p>Install the new filter sub-assembly by sliding the metal bracket between the charcoal canister assembly and the vehicle frame and reinstall the bolt, torqued to 14 ft.-lbs.</p>

Install a new cable clamp or equivalent 7.5-inch nylon cable tie as shown.
<p>Install a new cable clamp or equivalent 7.5-inch nylon cable tie as shown.</p>

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