Only Fuel Gauge Will Not Function
WARNING: This page is about a different car, the 1985 Nissan Maxima and 1985 Nissan 200SX. However, it is still accessible from the selected car via links, so may be relevant.
Perform SIGNAL CHECK . If results are not okay, replace control unit. If results are okay, check fuel tank sending unit. If sending unit is good, check wire harness between fuel gauge and sending unit. If results are not okay, replace sending unit.