LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 1989 >> Sentra Base >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Testing >> Fuel Gauge Test >> 240SX

Fuel Gauge Test: 240SX

  1. To check power source, turn the ignition switch to the "ON" position. Check voltage between terminal No. 24 and ground. See Figure. If there is 12 volts go to step 3).
  2. If there is not 12 volts, check for blown fusible link or fuse. Check harness continuity between battery terminal and combination meter. Check for malfunctioning ignition relay and/or ignition switch.
  3. Connect a jumper wire between terminal "B" and ground for less than 10 seconds. Fuel gauge should move smoothly from "EMPTY" to "FULL". If it does not, replace fuel gauge.
  4. If fuel gauge does move smoothly from "EMPTY" to "FULL", perform FUEL TANK SENDING UNIT TEST . If sending unit is okay, repair or replace sending unit harness.