Inspect Fuel Receiver Gauge Operation

WARNING: This page is about a different car, the 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the connector from the sender gauge.
Turn the ignition switch ON, check that the receiver gauge needle indicates EMPTY.

Fig 1: Fuel Receiver Gauge Wiring Diagram
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Connect terminals 2 and 3 on the wire harness side connector through a 3.4 watts test bulb.

Fig 2: Testing Fuel Receiver Gauge & Identifying Terminals (Wire Harness Side)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NOTE: Because of the silicon oil in the gauge, it will take a short time for needle to stabilize.

Turn the ignition switch ON, check that the bulb lights up and the receiver gauge needle moves towards the full side.
If operation is not as specified, inspect the receiver gauge resistance.