TSRM/MK2 Supra/Repair Manual
Repair ManualWiring Diagrams
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BE/Body Electrical System75 / 121
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BODY ELECTRICAL SYSTEM — Cruise Control System — MK2 Supra Body Electrical System, page 75
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CONTINUED FROM PREVIOUS PAGE Yes INSPECT CLUTCH SWITCH CIRCUIT (M/T) Is there continuity between terminal 11 and body ground with clutch pedal returned? Yes → • Short circuit in wire harness between terminal 11 of computer and terminal 3 of clutch switch. • Inspect clutch switch. No ↓ INSPECT NEUTRAL START SWITCH CIRCUIT (A/T) Is there battery voltage between terminal 11 and body ground when shifting except to "N" range? Yes → • Short circuit in wire harness between terminal 11 of computer and terminal 3 of neutral start switch. • Inspect neutral start switch. No ↓ INSPECT PARKING BRAKE SWITCH CIRCUIT Is there battery voltage between terminal 12 and body ground with parking brake lever returned? No → • Short circuit in wire harness between terminal 12 of computer and terminal 1 parking brake switch. • Inspect parking brake switch. Yes ↓ INSPECT SPEED SENSOR CIRCUIT Disconnect connector from combination meter. Is there continuity between terminal C-7 (analog meter) or A-12 (digital meter) of wire harness side connector and terminal 6 of computer? No → Open circuit in wire harness between terminal C-7 (analog meter) or A-12 (digital meter) and combination meter and terminal 6 of computer. Yes ↓ Disconnect connector from combination meter. Is there continuity between terminal 6 and body ground? Yes → Short circuit in wire harness between terminal 6 of computer and terminal 20 of combination meter. No ↓ SPEED SENSOR INSPECT GROUND CONNECTION Disconnect connector from combination meter. Is there continuity between terminal C-6 (analog meter) or A-10 (digital meter) of wire harness side connector and body ground? No → • Open circuit in wire harness between terminal C-6 (analog meter) or A-10 (digital meter) and body ground. • Body ground faulty. Yes ↓ INSPECT SPEED SENSOR OPERATION Is speed sensor operation normal? (See page BE-83) No → Speed sensor faulty. Yes ↓ CONTINUED ON NEXT PAGE