{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Repair Manual","section":"BE","section_name":"Body Electrical Systems","page":170,"pages_in_section":203,"title":"Matrix Chart of Problem Symptoms","section_header":"Body Electrical System — Cruise Control System","ocr_text":"BE–170\nBODY ELECTRICAL SYSTEM – CRUISE CONTROL SYSTEM\n\nMATRIX CHART OF PROBLEM SYMPTOMS\n\nThe table below will be useful for you in troubleshooting these electrical problems. The most likely causes of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and replace the part when it is found to be faulty.\n\nSee page\nIN-35  BE-171  BE-197  BE-179  BE-182  BE-191  BE-189  BE-177  BE-184  IN-30  BE-165\n\nInspection Item\nCruise Control ECU  Actuator  Main Switch (in Control Switch)  Control Switch  Stop Light Switch  Clutch Switch or Park/Neutral Position Switch  Parking Brake Switch  Vehicle Speed Sensor  Speed Control Cable Function  Throttle Position Sensor (IDL)  Wire Harness  Indicator Light\n\nDiagnosis Trouble Code\nProblem  Type A  Type B\n\n• \"CRUISE\" Indicator light blinks.\n• Cruise control system does not set.\n• Cruse control system does not operate.\n\n11        3  2                          1\n12        4  2        3                 1\n13        3  2                          1\n14  –     3  2                          1\n21  –     3                    2        1\n23  –     4              2  3           1\n32        3        2                    1\n34        3        2                    1\n41        1                             1\n42  –     Source voltage drop\n\nIndicator light does not light up\n        3                                   1  2\n\nLarge speed drop when the cruise control switch turned to SET.\n        4  3                          1  2\n\nVehicle speed fluctuates when cruise control switch turned to SET.\n        4  3                          1  2\n\nSet speed deviates on high or low side.\n        4  3                    1  2\n\nAcceleration response is sluggish when cruise control switch turned to \"ACCEL\" or \"RESUME\"\n        5  4        3              2  1\n\nCruise control system does not set.\nCruise control system does not operate.\n4  OK  9  8  2  3  4  5  6     7     1\n   NG  2                    1\n\nSet speed does not cancel when brake pedal depressed.\n3  OK  1\n   NG  2              1\n\nSet speed does not cancel when parking brake lever pulled.\n3  OK  1\n   NG  2                 1\n\nCruise control not cancelled, even when transmission is shifted to EXCEPT D RANGE.\n3  OK  1\n   NG  2              1\n\nSet speed does not cancel when clutch pedal depressed.\n3  OK  1\n   NG  2           1\n\nSet speed does not cancel when cruise control switch turned to CANCEL.\n3  OK  1\n   NG  2           1\n\nVehicles speed does not decrease when cruise control switch turned to COAST.\n1  OK  4  1                    3  2\n   NG  2           1\n\nVehicle speed does not accelerate when cruise control switch turned to ACCEL.\n2  OK  4  1                    3  2\n   NG  2           1\n\nVehicle speed does not return to memorized cruise when control switch turned to RESUME.\n2  OK  4  1                    3  2\n   NG  2           1\n\nSpeed can be set below about 40 km/h (25 mph.)\n4  OK  1\n   NG  2                 1\n\nCruise control does not disengage even at about 40 km/h (25 mph) or less.\n4  OK  2  1\n   NG  2                 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