TSRM/MK2 Supra/Repair Manual
Repair ManualWiring Diagrams
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BE/Body Electrical System71 / 121
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Troubleshooting — MK2 Supra Body Electrical System, page 71
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Troubleshooting Problem | Inspection Item | No. Cruise control does not operate. | Inspection of power source circuit | A Vehicle speed does not reduce when coast switch turned on. Vehicle does not accelerate when accel switch turned on. | Inspection of control switch and circuit. | B Vehicle speed does not return to memorized speed when resume switch turned on. Set speed deviates on high side. Set speed deviates on low side. | Inspection of actuator and circuit | C Vehicle speed does not fluctuate when set switch turned on. | Inspection of actuator and circuit | C | Inspection of speed sensor and circuit | H Setting speed does not cancel when brake pedal depressed. | Inspection of stop light switch and circuit | D Setting speed does not cancel when parking brake pulled. | Inspection of parking brake switch and circuit | E Setting speed does not cancel when clutch pedal depressed (M/T only). | Inspection of clutch switch and circuit | F Setting speed does not cancel when shifted to "N" range (A/T only). | Inspection of neutral start switch and circuit | G Speed can be set below 20 km/h (12 mph). Cruise control will not disengage even below 20 km/h (12 mph). | Inspection of speed sensor and circuit | H