LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2000 >> LS 400 >> Repair and Diagnosis >> Electrical >> Gauges >> Instrument Panels >> Circuit Tests >> Combination Meter Ecu Power Source Circuit

Combination Meter Ecu Power Source Circuit

  1. Check GAUGE, MPX-B and DOME fuses (10-amp). Replace fuse(s) if necessary. If fuses are okay, go to next step.
  2. Remove combination meter (instrument cluster). See INSTRUMENT CLUSTER  under REMOVAL & INSTALLATION. With wire harnesses disconnected, measure voltage between terminal No 6. (ground circuit) and terminals No. 1, 7 and 8 of harness connector "A". See Figure. If battery voltage is present at each terminal, perform next check listed in appropriate symptom diagnosis table. See TROUBLE SHOOTING . If battery voltage is not present at each terminal, go to next step.
  3. Check for open in harness or connector between terminal No. 6 (ground circuit) of combination meter and chassis ground. See WIRING DIAGRAMS . Repair as necessary. If circuit is okay, repair faulty power source circuit between combination meter and battery.