TL V6-3.2L (2004)
Fuel Filler Cap: Description and Operation
Fuel Cap Caution
The ECM/PCM detects when the fuel fill cap is loose or missing under a specific condition and notifies the driver.
First drive cycle
In the first drive cycle, involving a cold start, the ECM/PCM stores a temporary DTC P0457 "Evaporative Emission (EVAP) System Leak Detected/Fuel
Cap Loose or Missing" if the fuel fill cap is loose or missing, but no indicator will come on, and no message will be shown in the Multi-Information
Display (A).
Second drive cycle
In the second drive cycle, involving a cold start, if the fuel fill cap is still loose or missing, the ECM/PCM notifies the driver to check the fuel fill cap by
showing the message, "CHECK FUEL CAP" in the Multi- Information Display. Tightening the fuel fill cap properly will not make the message go off
immediately.
To make the message go off
Tighten the fuel fill cap properly (three clicks), and do this procedure several times.
1. Turn the ignition switch OFF.
2. Start the engine, and drive the vehicle at a steady speed over 28 mph (45 km/h) without moving the accelerator pedal for about 1 minute.
