TRANSFER-ECU TERMINAL VOLTAGE TABLE

note There are two ECUs with the same shape inside the floor console, one above the other. The top ECU is the ASTC-ECU. The bottom ECU is the transfer-ECU. Terminal No. Check item Inspection condition Standard value 1 Shift actuator Transfer shift lever position: 2H→4H (or 4H→4HLc, 4HLc→4LLc) 1/2 System voltage → System voltage → 1 V or less → 1/2 System voltage Transfer shift lever position: 4LLc→4HLc (or 4HLc→4H, 4H→2H) 1/2 System voltage → 1 V or less → 1/2 System voltage 3 Shift actuator Transfer shift lever position: 2H→4H (or 4H→4HLc, 4HLc→4LLc) 1/2 System voltage → 1 V or less → 1/2 System voltage Transfer shift lever position: 4LLc→4HLc (or 4HLc→4H, 4H→2H) 1/2 System voltage → System voltage → 1 V or less → 1/2 System voltage 5 Accelerator pedal position sensor (APS) <4M41, 6G7> Lever position sensor (LPS) <4M40> Accelerator pedal: Fully closed (engine stopped) 0.5 ± 0.05 V Accelerator pedal: Fully open (engine stopped) 2.325 ± 0.05 V 6 ASTC-ECU signal (FR) Ignition switch: ON 1 V or less 7 Front propeller shaft speed sensor Measure the voltage between terminals 7 and 18 using an oscilloscope. Engine: 2,000 r/min Shift range: 4th Oscilloscope check procedure (Refer to ) 8 ASTC-ECU signal (RL) Ignition switch: ON 1 V or less 9 Rear propeller shaft speed sensor Measure the voltage between terminals 9 and 18 using an oscilloscope. Engine: 2,000 r/min Shift range: 4th Oscilloscope check procedure (Refer to ) 10 ASTC-ECU signal (RR) Ignition switch: ON 1 V or less 13 Power supply Ignition switch: OFF 1 V or less Ignition switch: ON System voltage 18 Sensor earth At all times 1 V or less 19 ASTC-ECU signal (FL) Ignition switch: ON 1 V or less 20 Transfer lever switch: 2H Transfer shift lever position: 2H System voltage Transfer shift lever position: Other than the above 1 V or less 21 Transfer lever switch: 4H Transfer shift lever position: 4H System voltage Transfer shift lever position: Other than the above 1 V or less 22 Transfer lever switch: 4HLc Transfer shift lever position: 4HLc System voltage Transfer shift lever position: Other than the above 1 V or less 23 Transfer lever switch: 4LLc Transfer shift lever position: 4LLc System voltage Transfer shift lever position: Other than the above 1 V or less 25 Earth At all times 1 V or less 26 Earth At all times 1 V or less 31 Backup power supply At all times System voltage 32 Inhibitor switch: N <A/T> Selector lever position: N System voltage Selector lever position: Other than above 1 V or less 34 Stop lamp switch Brake pedal: Depressed System voltage Brake pedal: Released 1 V or less 35 Earth <A/T> At all times 1 V or less 37 2WD indicator lamp (RL) Transfer shift lever position: 4HLc <=> 4LLc System voltage <=> 1 V or less → System voltage Transfer shift lever position: 2H <=> 4H <=> 4HLc System voltage 38 4WD indicator lamp (FL) Transfer shift lever position: 2H 1V or less Transfer shift lever position: Other than the above 1 V or less <=> System voltage 39 Earth <6G7> At all times 1 V or less 40 Centre differential lock lamp Transfer shift lever position: 2H or 4H System voltage Transfer shift lever position: 4HLc or 4LLc 1 V or less 41 Solenoid valve A, B Transfer shift lever position: 2H 1 V or less Transfer shift lever position: Other than 2H System voltage 42 Earth At all times 1 V or less 43 2WD operation detection switch Transfer shift lever position: 2H 1 V or less Transfer shift lever position: Other than 2H 10.5 V 44 2WD/4WD detection switch Transfer shift lever position: 2H or 4H 1 V or less Transfer shift lever position: 4HLc or 4LLc 10.5 V 45 4H detection switch Transfer shift lever position: 4H or 4HLc 1 V or less Transfer shift lever position: 2H or 4LLc 10.5 V 46 Centre differential lock detection switch Transfer shift lever position: 4HLc or 4LLc 1 V or less Transfer shift lever position: 2H or 4H 10.5 V 47 4LLc detection switch Transfer shift lever position: 4LLc 1 V or less Transfer shift lever position: Other than 4LLc 10.5 V 48 2WD indicator lamp (RR) Transfer shift lever position: 4HLc <=> 4LLc System voltage <=> 1 V or less → System voltage Transfer shift lever position: 2H <=> 4H <=> 4HLc System voltage 49 4WD indicator lamp (FR) Transfer shift lever position: 2H 1V or less Transfer shift lever position: Other than the above 1 V or less <=> System voltage 50 Freewheel engage switch Transfer position: 2WD 10.5 V Transfer position: 4WD 1 V or less 52 4LLc indicator lamp Transfer shift lever position: 4LLc 1V or less Transfer shift lever position: Other than the above System voltage