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AUTOMATIC TRANSMISSION – Troubleshooting <A/T> 23-30 A/T-ECU TERMINAL VOLTAGE REFERENCE CHART Terminal Inspection item Inspection conditions Standard value 1 Solenoid valve No. 1 When in 1st or 2nd gear System voltage When in 3rd or 4th gear 0 V 2 Solenoid valve No. 2 When in 2nd or 3rd gear System voltage When in 1st or 4th gear 0 V 3 Wide open throttle switch Accelerator pedal: Released 4.5 – 5.5 V Accelerator pedal: Depressed Less than 0.4 V 4 Output shaft speed sensor – – 5 Stop lamp switch Brake pedal: Depressed System voltage Brake pedal: Released 0 V 6 Free-wheeling engage Transfer lever position: Other than 4WD System voltage switch Transfer lever position: 4WD 0 V 8 Inhibitor switch (L) Selector lever position: L System voltage Selector lever position: Other than L 0 V 9 Back-up power supply Ignition switch: OFF System voltage 10 Solenoid valve No. 3 When lockup clutch is operating System voltage When lockup clutch is not operating 0 V 11 Diagnosis control terminal – – 12 A/T fluid temperature – – 13 Output shaft speed sensor Vehicle: Stopped Approx. 2.5 V Vehicle: Driving Other than 2.5 V 14 Dual-pressure switch A/C switch: OFF 0 V A/C switch: ON System voltage 15 Input shaft speed sensor – – 16 Input shaft speed sensor Ignition switch: OFF 0 V Ignition switch: ON 2.5 V |