After refueling, turn the fuel tank cap until you hear a click. Once the cap is released, it will turn slightly in the opposite direction.

Caution
When replacing the fuel tank cap
Do not use anything but a genuine toyota fuel tank cap designed for your vehicle. Doing so may cause a fire or other incident which may result in death or serious injury.
Opening the fuel tank capDiagnosis system
Description
When troubleshooting obd ii (on-board diagnostics)
vehicles, the intelligent tester (complying with sae
j1987) must be connected to the dlc3 (data link
connector 3) of the vehicle. Various data in the vehicle's
ecm (engine control module) can be then read.
Obd ii regulations ...
Emergency flashers
The emergency flashers are used to warn other drivers when the
vehicle has to be stopped in the road to a breakdown, etc.
Press the switch.
All the turn signals will flash.
To turn them off, press the switch
once again.
Emergency flashers
If the emergency flashers are used for a long ...
Crankshaft position sensor "A"
Description
The crankshaft position (ckp) sensor system consists of a ckp sensor plate
and a pickup coil.
The sensor plate has 34 teeth and is installed on the crankshaft. The pickup
coil is made of wound copper
wire, an iron core and magnet. The sensor plate rotates and, as each tooth ...