TSB's

EVAP Stuck

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

Using TechStream, check for stored DTCs. If P2420 is stored, replace the charcoal canister assembly.

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

Remove the bolt from the charcoal canister assembly.
<p>Remove the bolt from the charcoal canister assembly.</p>

Install the new filter sub-assembly by sliding the metal bracket between the charcoal canister assembly and the vehicle frame. Reinstall the mounting bolt and torque to 14 ft-lb (19 Nm).
<p>Install the new filter sub-assembly by sliding the metal bracket between the charcoal canister assembly and the vehicle frame. Reinstall the mounting bolt and torque to 14 ft-lb (19 Nm).</p>

Connect the new inlet and outlet air lines.
<p>Connect the new inlet and outlet air lines.</p>

Install the new clamp (P/N 90463-13003) or equivalent 7.5-inch nylon cable tie in the location shown.
<p>Install the new clamp (P/N 90463-13003) or equivalent 7.5-inch nylon cable tie in the location shown.</p>

Clear all DTCs and run the EVAP System Check utility using TechStream. Verify that no codes were set during the utility. Test drive and confirm the repair.

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

77740-02220............................charcoal canister assembly

77706-12020............................filter sub-assembly

90463-13003............................clamp

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