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Electrical Specification

Fig 1: Identifying Transmission Control Module Connector Terminals
G03831899Courtesy of SUBARU OF AMERICA, INC.
NOTE: The measurement should perform after warming up.
TRANSMISSION CONTROL MODULE CONNECTOR TERMINALS VOLTAGE AND RESISTANCE SPECIFICATION

Item Connector No. Terminal No. Measuring conditions Voltage (V) Measure the resistance between terminal and chassis ground. Remarks
P/L solenoid output B54 9 Engine ON, "P" range, Accelerator OFF, Brake ON Approx. 4.0 - 6.0 V 3 - 9 (ATF temperature 20°C (68°F)) Driving frequency 750 - 850 Hz
Manual mode 1st, Accelerator OFF, Brake ON Approx. 2.0 - 4.0 V
PVIGN power supply B54 8 Ignition switch ON Power supply voltage -  
7 Ignition switch ON Power supply voltage -  
I/C oil pressure switch input B54 6 - - - The condition of I/C oil pressure switch cannot be read by the tester.
Power GND B54 5 Always Approx. 0 V -  
CAN communication line (+) B54 4 - - -  
CAN communication line (-) B54 3 - - -  
ATF temperature sensor 1 input B54 2 Ignition switch ON 2.5 - 2.9 V (ATF temperature 20°C (68°F)) 0.8-1.0 V (ATF temperature 80°C (176°F)) 4.0 - 5.0 k (ATF temperature 20°C (68°F)) 0.7 - 0.9 k (ATF temperature 80°C (176°F))  
Battery power supply B54 1 Always Power supply voltage -  
I/C solenoid output B54 18 While driving at 1st - 3rd of manual mode Approx. 5.5 - 7.5 V 3 - 9 (ATF temperature 20°C (68°F)) Driving frequency 750 - 850 Hz
While driving at 4th or 5th of manual mode Approx. 0 V
H&LR/C solenoid output B54 17 While driving at 2nd of manual mode Approx. 5.5 - 7.5 V 3 - 9 (ATF temperature 20°C (68°F)) Driving frequency 750 - 850 Hz
While driving at 3rd - 5th of manual mode Approx. 0 V
Control valve power supply output B54 16 Ignition switch ON Power supply voltage -  
Ignition switch OFF Approx. 0 V
LC/B solenoid output B54 15 While driving at 1st - 2nd of manual mode Power supply voltage 5-17 (ATF temperature 25°C (77°F))  
While driving at 3rd - 5th of manual mode Approx. 0 V
Power GND B54 14 Always Approx. 0 V -  
Analog GND (Sensor GND) B54 13 Always Approx. 0 V -  
LC/B oil pressure switch input B54 12 - - - The condition of LC/B oil pressure switch cannot be read by the tester.
ATF temperature sensor 2 input B54 11 Ignition switch ON 2.3 -2.7 V (ATF temperature 20°C (68°F)) 0.6 -0.8 V (ATF temperature 80°C (176°F)) 3.0 -3.6 k (ATF temperature 20°C (68°F)) 0.4 -0.6 k (ATF temperature 80°C (176°F))  
PVIGN power supply relay output B54 10 Ignition switch ON 0-1.5 V -  
Fr/B solenoid output B54 24 While driving at other than 4th of manual mode Approx. 4.5 - 6.5 V 3 - 9 (ATF temperature 20°C (68°F)) Driving frequency 750 - 850 Hz
While driving at 4th of manual mode Approx. 0 V
L/U solenoid output B54 23 When lock-up Approx. 3.5 - 5.5 V 3 - 9 (ATF temperature 20°C (68°F)) Driving frequency 750 - 850 Hz
When not lock-up Approx. 0 V
D/C solenoid output B54 22 While driving at 1st or 5th of manual mode Approx. 5.5 - 7.5 V 3 - 9 (ATF temperature 20°C (68°F)) Driving frequency 750 - 850 Hz
While driving at 2nd - 4th of manual mode Approx. 0 V
D/C oil pressure switch input B54 21 - - - The condition of D/C oil pressure switch cannot be read by the tester.
Subaru Select Monitor communication line B54 20 - - -  
Control GND B54 19 Always Approx. 0 V -  
H&LR/C oil pressure switch input B55 8 While driving at 2nd of manual mode Power supply voltage -  
While driving at 3rd- 5th of manual mode Approx. 0 V  
Front vehicle speed sensor input B55 7 While driving at 2nd and 20 km/h (12 MPH) of manual mode Approx. 140- 170 Hz -  
While driving at 4th and 80 km/h (50 MPH) of manual mode Approx. 560- 680 Hz  
Lateral G sensor power supply B55 6 Ignition switch ON 4.75 -5.25 V -  
Lateral G sensor signal input B55 5 Ignition switch ON, Engine ON, Flat value 2.0 -3.0 V -  
Inhibitor switch 1 input B55 4 Ignition switch ON, "P" range 4.0 -5.0 V -  
Ignition switch ON, "N" range 1.5 V or less
Inhibitor switch 2 input B55 3 Ignition switch ON, "P" range 4.0 -5.0 V -  
Ignition switch ON, "D" range 1.5 V or less
Accessory power supply B55 2 Accessory switch ON Power supply voltage -  
Accessory switch OFF Approx. 0 V
Ignition power supply B55 1 Ignition switch ON Power supply voltage -  
Ignition switch OFF Approx. 0 V
Rear vehicle speed sensor input B55 18 While driving at 2nd and 20 km/h (12 MPH) of manual mode Approx. 190- 230 Hz -  
While driving at 4th and 80 km/h (50 MPH) of manual mode Approx. 760- 920 Hz
Fr/B oil pressure switch input B55 17 Ignition switch ON, Engine ON, While driving at other than 4th Approx. 0 V -  
Ignition switch ON, Engine ON, While driving at 4th Power supply voltage
Turbine speed sensor 1 input B55 16 2nd of manual mode, Turbine speed sensor is 2,000 rpm (Read from Subaru Select Monitor) Approx. 0 Hz - Use an oscilloscope.
4th of manual mode, Turbine speed sensor is 2,000 rpm (Read from Subaru Select Monitor) Approx. 1,900- 2,100 Hz Use an oscilloscope.
Range lock solenoid output B55 15 Ignition switch ON, While stopping at "D" range About Power Supply Voltage- 1.2 V 7-21  
Ignition switch ON, Vehicle speed at least 20 km/h (12 MPH) Approx. 0 V
Inhibitor switch 3 input B55 14 Ignition switch ON, "R" range 4.0- 5.0 V -  
Ignition switch ON, "D" range 1.5 V or less
Inhibitor switch 4 input B55 13 Ignition switch ON, "P" range 4.0 -5.0 V -  
Ignition switch ON, "D" range 1.5 V or less
Control valve communication line B55 12 - - -  
Back-up light relay output B55 11 Ignition switch ON, "R" range 1.5 V Approx. 90- 110 n (ATF temperature 25°C (77°F))  
Ignition switch ON, Other than "R" range Power supply voltage
Ignition power supply B55 10 Ignition switch ON Power supply voltage -  
Ignition switch OFF Approx. 0 V
AWD solenoid output B55 23 Engine ON, "P" range or "N" range, Accelerator OFF Approx. 0 V 3- 9 n (ATF temperature 20°C (68°F)) Driving frequency 750- 850 Hz
Engine ON, "D" range, Accelerator OFF, Brake ON Approx. 2.0- 3.0 V
Turbine speed sensor 2 input B55 22 2nd of manual mode, Turbine speed sensor is 2,000 rpm (Read from Subaru Select Monitor) Approx. 1,300- 1,500 Hz - Use an oscilloscope.
4th of manual mode, Turbine speed sensor is 2,000 rpm (Read from Subaru Select Monitor) Approx. 1,900- 2,100 Hz Use an oscilloscope.
Control GND B55 21 Always Approx. 0 V -  
Inhibitor switch 3 open circuit monitor input B55 20 Ignition switch ON, "D" range 4.0 -5.0 V -  
Ignition switch ON, "R" range Less than 1.5 V
PN signal output B55 19 Ignition switch ON, Other than "P" range or "N" range Power supply voltage - ECM should be connected correctly
Ignition switch ON, "P" range or "N" range 0-1.0 V -