[23A] AUTOMATIC TRANSMISSION (FF) - - TROUBLESHOOTING <A/T> - CHECK AT ENGINE-A/T-ECU TERMINALS <4G63, 4G64>PRINT PAGE / INDEX / PRIOR / NEXT
CHECK AT ENGINE-A/T-ECU TERMINALS <4G63, 4G64>
   
Terminal No.
 Check item
 Inspection conditions
 Standard value
7
 A/T fluid temperature warning lamp <Except for 4G63>
 Ignition switch: OFF → ON
 1 V or less → System voltage (after several seconds have elapsed)
45
 Crank angle sensor
 Engine: Idling
 1.5 - 2.5 V
46
 TPS impressed voltage
 Ignition switch: ON
 4.9 - 5.1 V
50
 A/T control relay
 Ignition switch: ON
 1 V or less
57
 Sensor earth
 At all times
 0.5 V or less
75
 Auto-cruise signal <Except for 4G63>
 Ignition switch: ON
 System voltage
76
 Earth
 At all times
 1 V or less
77
 Solenoid valve power supply
 Ignition switch: OFF
 1 V or less
Ignition switch: ON
 System voltage
78
 TPS opening voltage
 Ignition switch: ON
 Accelerator pedal: Released
 535 - 735 mV
Accelerator pedal: Depressed
 4.5 - 5.0 V
80
 Vehicle speed output
  • Measure between terminal 80 and earth using an oscilloscope.
  • Engine: 2,000 r/min
  • Gear range: 3rd
 Refer to , Oscilloscope inspection procedure.
88
 Earth
 At all times
 1 V or less
89
 Solenoid valve power supply
 Ignition switch: OFF
 1 V or less
Ignition switch: ON
 System voltage
101
 Inhibitor switch P
 Ignition switch: ON
 Selector lever position: P
 System voltage
Selector lever position: Other than the above
 1 V or less
102
 Inhibitor switch D
 Ignition switch: ON
 Selector lever position: D
 System voltage
Selector lever position: Other than the above
 1 V or less
103
 Input shaft speed sensor
  • Measure between terminals 16 and 103 using an oscilloscope.
  • Engine: 2,000 r/min
  • Gear range: 3rd
 Refer to , Oscilloscope inspection procedure.
104
 Output shaft speed sensor
  • Measure between terminals 16 and 104 using an oscilloscope.
  • Engine: 2,000 r/min
  • Gear range: 3rd
 Refer to , Oscilloscope inspection procedure.
105
 Shift indicator C
 Measure the voltage when each shift range is displayed by using actuator function (item No.07 to 10) on the MUT-II/III.
 1st
 1 V or less
2nd
 1 V or less
3rd
 1 V or less
4th
 8 - 10 V
5th <5A/T>
 8 - 10 V
106
 2ND solenoid valve
 Gear range: 2nd
 System voltage
Gear range: Parking
 6 - 9 V
107
 DCC solenoid valve
 Gear range: Parking
 System voltage
108
 Inhibitor switch R
 Ignition switch: ON
 Selector lever position: R
 System voltage
Selector lever position: Other than the above
 1 V or less
109
 Select switch
 Ignition switch: ON
 Selector lever position: Sport mode
 System voltage
Selector lever position: Other than the above
 1 V or less
110
 Shift switch (DOWN)
 Ignition switch: ON
 Selector lever position: Downshift in sport mode, and hold the selector lever
 System voltage
Selector lever position: Other than the above
 1 V or less
117
 Shift indicator A
 Measure the voltage when each shift range is displayed by using actuator function (item No.07 to 10) on the MUT-II/III.
 1st
 8 - 10 V
2nd
 1 V or less
3rd
 8 - 10 V
4th
 1 V or less
5th <5A/T>
 8 - 10 V
118
 Shift indicator B
 Measure the voltage when each shift range is displayed by using actuator function (item No.07 to 10) on the MUT-II/III.
 1st
 1 V or less
2nd
 8 - 10 V
3rd
 8 - 10 V
4th
 1 V or less
5th <5A/T>
 1 V or less
119
 RED solenoid valve <5A/T>
 Gear range: 5th
 6 - 9 V
Gear range: Parking
 System voltage
120
 UD solenoid valve
 Gear range: 1st
 System voltage
Gear range: Parking
 6 - 9 V
121
 Inhibitor switch N
 Ignition switch: ON
 Selector lever position: N
 System voltage
Selector lever position: Other than the above
 1 V or less
122
 Shift switch (UP)
 Ignition switch: ON
 Selector lever position: Upshift in sport mode, and hold the selector lever
 System voltage
Selector lever position: Other than the above
 1 V or less
123
 Stop lamp switch
 Ignition switch: ON
 Brake pedal: Depressed
 System voltage
Brake pedal: Released
 1 V or less
124
 A/T fluid temperature sensor
  • Ignition switch: ON
  • A/T fluid temperature: 20°C
 3.8 - 4.0 V
  • Ignition switch: ON
  • A/T fluid temperature: 40°C
 3.2 - 3.4 V
  • Ignition switch: ON
  • A/T fluid temperature: 80°C
 1.7 - 1.9 V
125
 Steering shift switch <5A/T>
 Ignition switch: ON
 Upshift switch: ON
Downshift switch: OFF
 3.4 - 3.6 V
Upshift switch: OFF
Downshift switch: ON
 2.3 - 2.5 V
Upshift switch: OFF
Downshift switch: OFF
 4.9 - 5.0 V
128
 Downshift forbidden buzzer <5A/T>
 Sound the buzzer by means of the Actuator test of the MUT-II/III.
 1 V or less
No requirements
 Between 0.7 and 0.85 V alternates.
129
 LR solenoid valve
 Gear range: Parking
 System voltage
Gear range: 2nd
 6 - 9 V
130
 OD solenoid valve
 Gear range: 3rd
 System voltage
Gear range: Parking
 6 - 9 V

[23A] AUTOMATIC TRANSMISSION (FF) - - TROUBLESHOOTING <A/T> - CHECK AT ENGINE-A/T-ECU TERMINALS <4G63, 4G64>PRINT PAGE / INDEX / PRIOR / NEXT
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