TSRM/MK2 Supra/Repair Manual
Repair ManualWiring Diagrams
p.114
BE/Body Electrical System115 / 121
p.116
Troubleshooting — MK2 Supra Body Electrical System, page 115
100%
Troubleshooting Check the following before beginning Troubleshooting. Does DISPLAY CLUSTER indicate "EEEE"? Yes → If DISPLAY CLUSTER indicates "EEEE", operation is wrong. No ↓ Disconnect the negative cable from the battery for 10 seconds and then, reconnect it. ↓ Is display flashing 1:00? No → Inspect circuit and voltage of Keyboard (See page BE-114) Yes ↓ Perform input date to trip computer again. Does trip computer operate correctly for all items? Yes → OK No ↓ Perform each troubleshooting item. Symptom | Possible Cause | Trouble Function keys do not operate. | DISPLAY CLUSTER or Keyboard | A MPG display is always zero. Trip reading does increase or "ARRIVE" mode indicate "-------" always. | DISPLAY CLUSTER or Keyboard | B MPG display is always 70 or trip reading does not change. | DISPLAY CLUSTER or Keyboard | C Lights does not dim. | DISPLAY CLUSTER or Keyboard | D Inaccurate clock. | DISPLAY CLUSTER | E