LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2000 >> SC 400 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Gauges & Instrument Panels >> Symptom Tests >> Test No. 1: No Display At All

Test No. 1: No Display At All

  1. Turn ignition on. If warning lights illuminate, go to step  3. If warning lights do not illuminate, check GAUGE (10-amp) fuse. If fuse is okay, repair open in Yellow wire between GAUGE fuse and instrument cluster. See WIRING DIAGRAMS . If fuse is open, replace fuse and go to next step.
  2. Turn ignition on. If fuse blows, disconnect instrument cluster harness connectors. Replace fuse and retry. If fuse blows, repair short in Yellow wire between GAUGE fuse and instrument cluster. See WIRING DIAGRAMS . If fuse is okay, replace circuit plate and retest.
  3. Disconnect instrument cluster harness connector "D". Check for continuity between ground and harness connector "D", terminal No. 23 (White/Black wire). See WIRING DIAGRAMS . If continuity is not present, repair open in White/Black wire between instrument cluster and ground. If continuity is present, go to next step.
  4. Turn ignition on. Measure voltage between harness connector "D", terminals No. 2 (Yellow wire) and No. 23 (White/Black wire). See WIRING DIAGRAMS . If battery voltage is present, replace circuit plate and retest. If battery voltage is not present, repair Yellow wire between instrument cluster and GAUGE fuse.
scientia non olet · About LEMON Manuals