A/T-ECU TERMINAL VOLTAGE REGERENCE CHART


<4M4>




Terminal No.
 Check item
 Inspection condition
 Standard value
1
 UD solenoid valve
  • Engine: Idling
  • Selector lever position: 1st gear

 System voltage

  • Engine: Idling
  • Selector lever position: P

 6 - 9 V
2
 Solenoid valve power supply
 Ignition switch: LOCK (OFF)
 1 V or less
Ignition switch: ON
 System voltage
3
 Solenoid valve power supply
 Ignition switch: LOCK (OFF)
 1 V or less
Ignition switch: ON
 System voltage
9
 4LLc detection switch
  • Ignition switch: ON
  • Selector lever operation: N
  • Transfer position: 4LLc

 1 V or less

  • Ignition switch: ON
  • Selector lever operation: N
  • Transfer position: Other than above

 System voltage
10
 A/C relay <4M40>
  • Ignition switch: ON
  • A/C switch: OFF

 1 V or less

  • Ignition switch: ON
  • A/C switch: ON

 System voltage
11
 Power supply
 Ignition switch: LOCK (OFF)
 1 V or less
Ignition switch: ON
 System voltage
12
 Earth
 Always
 1 V or less
13
 Earth
 Always
 1 V or less
14
 OD solenoid valve
  • Engine: Idling
  • Selector lever position: 3rd gear

 System voltage

  • Engine: Idling
  • Selector lever position: P

 6 - 9 V
15
 DCC solenoid valve
  • Engine: Idling
  • Selector lever position: P

 System voltage
16
 2ND solenoid valve
  • Engine: Idling
  • Selector lever position: 2nd gear

 System voltage

  • Engine: Idling
  • Selector lever position: P

 6 - 9 V
20
 Ignition switch
 Ignition switch: LOCK (OFF)
 1 V or less
Ignition switch: ON
 System voltage
24
 Power supply
 Ignition switch: LOCK (OFF)
 1 V or less
Ignition switch: ON
 System voltage
25
 Earth
 Always
 1 V or less
26
 Earth
 Always
 1 V or less
31
 Input shaft speed sensor
  • Measure between terminals 31 and 43 with an oscilloscope.
  • Engine: 2,000 r/min
  • Selector lever position: Sport mode (4th gear)

 Refer to , Inspection Procedure Using an Oscilloscope.
32
 Output shaft speed sensor
  • Measure between terminals 32 and 43 with an oscilloscope.
  • Engine: 2,000 r/min
  • Selector lever position: Sport mode (4th gear)

 Refer to , Inspection Procedure Using an Oscilloscope.
33
 Revolution pick-up sensor <4M40>
 Engine: Idling
 2.0 - 2.4 V
38
 Backup power supply
 Always
 System voltage
43
 Sensor earth
 Always
 1 V or less
44
 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
45
 Lever position sensor <4M40>
  • Ignition switch: ON
  • Accelerator pedal: Fully closed

 0.8 - 1.0 V

  • Ignition switch: ON
  • Accelerator pedal: Fully opened

 4.1 - 4.9 V
51
 RED solenoid valve <4M41>
  • Engine: Idling
  • Selector lever position: 5th gear

 System voltage

  • Engine: Idling
  • Selector lever position: P

 6 - 9 V
55
 Inhibitor switch: P
  • Ignition switch: ON
  • Selector lever position: P

 System voltage

  • Ignition switch: ON
  • Selector lever position: Other than above

 1 V or less
56
 Inhibitor switch: N
  • Ignition switch: ON
  • Selector lever position: N

 System voltage

  • Ignition switch: ON
  • Selector lever position: Other than above

 1 V or less
57
 Select switch
  • Ignition switch: ON
  • Selector lever position: Sport mode

 System voltage

  • Ignition switch: ON
  • Selector lever position: Other than above

 1 V or less
58
 Shift switch (Down)
  • Ignition switch: ON
  • Selector lever operation: Downshift and hold the selector lever

 System voltage

  • Ignition switch: ON
  • Selector lever operation: Other than above

 1 V or less
59
 Stop lamp switch <4M41>
 Brake pedal: Depressed
 System voltage
Brake pedal: Released
 1 V or less
62
 LR solenoid valve
  • Engine: Idling
  • Selector lever position: P

 System voltage

  • Engine: Idling
  • Selector lever position: 2nd gear

 6 - 9 V
66
 Inhibitor switch: R
  • Ignition switch: ON
  • Selector lever position: R

 System voltage

  • Ignition switch: ON
  • Selector lever position: Other than above

 1 V or less
67
 Inhibitor switch: D
  • Ignition switch: ON
  • Selector lever position: D

 System voltage

  • Ignition switch: ON
  • Selector lever position: Other than above

 1 V or less
68
 Shift switch (Up)
  • Ignition switch: ON
  • Selector lever operation: Upshift and hold the selector lever

 System voltage

  • Ignition switch: ON
  • Selector lever operation: Other than above

 1 V or less
71
 A/T control relay
 Ignition switch: OFF
 1 V or less
Ignition switch: ON
 System voltage to 1 V or less (after several seconds have elapsed)
72
 Earth
 Always
 1 V or less

<6G7>




Terminal No.
 Check item
 Inspection condition
 Standard value
39
 Stop lamp switch
 Brake pedal: Depressed
 System voltage
Brake pedal: Released
 1 V or less
55
 4LLc detection switch
  • Ignition switch: ON
  • Selector lever operation: N
  • Transfer position: 4LLc

 1 V or less

  • Ignition switch: ON
  • Selector lever operation: N
  • Transfer position: Other than above

 System voltage
64
 Input shaft speed sensor
  • Measure between terminals 64 and 88 with an oscilloscope.
  • Engine: 2,000 r/min
  • Selector lever position: Sport mode (4th gear)

 Refer to , Inspection Procedure Using an Oscilloscope.
66
 Inhibitor switch: P
  • Ignition switch: ON
  • Selector lever position: P

 System voltage

  • Ignition switch: ON
  • Selector lever position: Other than above

 1 V or less
67
 Inhibitor switch: R
  • Ignition switch: ON
  • Selector lever position: R

 System voltage

  • Ignition switch: ON
  • Selector lever position: Other than above

 1 V or less
68
 Shift switch (Down)
  • Ignition switch: ON
  • Selector lever operation: Downshift and hold the selector lever

 System voltage

  • Ignition switch: ON
  • Selector lever operation: Other than above

 1 V or less
73
 Output shaft speed sensor
  • Measure between terminals 73 and 88 with an oscilloscope.
  • Engine: 2,000 r/min
  • Selector lever position: Sport mode (4th gear)

 Refer to , Inspection Procedure Using an Oscilloscope.
75
 Inhibitor switch: N
  • Ignition switch: ON
  • Selector lever position: N

 System voltage

  • Ignition switch: ON
  • Selector lever position: Other than above

 1 V or less
76
 Inhibitor switch: D
  • Ignition switch: ON
  • Selector lever position: D

 System voltage

  • Ignition switch: ON
  • Selector lever position: Other than above

 1 V or less
77
 Shift switch (Up)
  • Ignition switch: ON
  • Selector lever operation: Upshift and hold the selector lever

 System voltage

  • Ignition switch: ON
  • Selector lever operation: Other than above

 1 V or less
79
 Vehicle speed signal
  • Measure between terminals 79 and earth with an oscilloscope.
  • Engine: 2,000 r/min
  • Selector lever position: Sport mode (4th gear)

 Refer to , Inspection Procedure Using an Oscilloscope.
85
 Select switch
  • Ignition switch: ON
  • Selector lever position: Sport mode

 System voltage

  • Ignition switch: ON
  • Selector lever position: Other than above

 1 V or less
88
 Sensor earth
 Always
 1 V or less
96
 Sensor earth
 Always
 1 V or less
119
 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
123
 Solenoid valve power supply
 Ignition switch: LOCK (OFF)
 1 V or less
Ignition switch: ON
 System voltage
124
 Solenoid valve power supply
 Ignition switch: LOCK (OFF)
 1 V or less
Ignition switch: ON
 System voltage
127
 A/T control relay
 Ignition switch: OFF
 1 V or less
Ignition switch: ON
 System voltage to 1 V or less (after several seconds have elapsed)
128
 LR solenoid valve
  • Engine: Idling
  • Selector lever position: P

 System voltage

  • Engine: Idling
  • Selector lever position: 2nd gear

 6 - 9 V
129
 RED solenoid valve
  • Engine: Idling
  • Selector lever position: 5th gear

 System voltage

  • Engine: Idling
  • Selector lever position: P

 6 - 9 V
130
 DCC solenoid valve
  • Engine: Idling
  • Selector lever position: P

 System voltage
131
 Earth
 Always
 1 V or less
136
 2ND solenoid valve
  • Engine: Idling
  • Selector lever position: 2nd gear

 System voltage

  • Engine: Idling
  • Selector lever position: P

 6 - 9 V
137
 UD solenoid valve
  • Engine: Idling
  • Selector lever position: 1st gear

 System voltage

  • Engine: Idling
  • Selector lever position: P

 6 - 9 V
138
 OD solenoid valve
  • Engine: Idling
  • Selector lever position: 3rd gear

 System voltage

  • Engine: Idling
  • Selector lever position: P

 6 - 9 V
139
 Earth
 Always
 1 V or less