TSRM/MK2 Supra/Repair Manual
Repair ManualWiring Diagrams
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BE/Body Electrical System40 / 121
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BODY ELECTRICAL SYSTEM — Instruments and Sender Gauges — MK2 Supra Body Electrical System, page 40
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BE-40 BODY ELECTRICAL SYSTEM — Instruments and Sender Gauges SECTION TROUBLE B Speedometer Speedometer displays [0] while driving Does trip meter operate? No Does trip meter operate with meter disconnected and cable turned? Yes Yes No Check total counter Remove meter and connect sub-harness (SST) • Check cable • Check drive and driven gears ① With the ignition S/W at ON position, check that there is 4.0 — 6.0V between terminals 1 and 3 of connector for speed sensor (total counter). No ④ With the ignition S/W at ON position, check that there is 4.0 — 6.0V between terminals 1 and 3 of speedometer with connector removed. OK No OK Replace speed sensor ② With the ignition S/W at ON position, does voltage between terminals 1 and 2 of speed sensor connector fluctuate between 0 — 5.0V when meter cable is turned? 4.0 — 6.0V 0 — 1V Yes Replace speedometer No ③ With the ignition S/W at ON position, and speed sensor disconnected, does display appear when terminals 1 and 2 of speedometer are connected and disconnected? No Yes Replace speed sensor