Disconnect indicator lamp module from body harness.
Turn ignition switch to RUN but do not start engine.
Measure voltage between the Yellow/White wire and ground on the harness connector to the indicator lamp module.
Is voltage 4 V or greater? If it is REPLACE indicator lamp module. (Bottom center of I/P, below stereo radio)
If it isn't CHECK wiring harness, connector/fuel pump module.
Here's the diagram.