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Home >> Subaru >> 2007 >> B9 Tribeca Base >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission (Diagnostics) (5AT) >> Transmission Control Module (TCM) I/O Signal >> Electrical Specification
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Electrical Specification

Fig 1: Identifying Transmission Control Module Connector Terminal
G05019810Courtesy of SUBARU OF AMERICA, INC.
NOTE: The measurement should be performed after warming up.
CONNECTOR TERMINAL REFERENCE

Item Connector No. Terminal No. Measuring condition Measured value 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 Ω (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 kΩ (ATF temperature 20°C (68°F)) 0.7 - 0.9 kΩ (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 Ω (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 Ω (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 Ω (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 kΩ (ATF temperature 20°C (68°F)) 0.4 - 0.6 kΩ (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 Ω (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 Ω (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 Ω (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 and20km/h(12MPH) of manual mode Approx. 530 - 610 rpm - Use the Subaru Select Monitor.
While driving at 4th and 80 km/h (50 MPH) of manual mode Approx. 2160 - 2410 rpm Use the Subaru Select Monitor.
Inhibitor switch 1 input B55 4 Ignition switch ON, "P" range 4.0 - 5.0 V -  
Ignition switch ON, "N" range Less than 1.5 V
Inhibitor switch 2 input B55 3 Ignition switch ON, "P" range 4.0 - 5.0 V -  
Ignition switch ON, "D" range Less than 1.5 V
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. 530 - 610 rpm - Use the Subaru Select Monitor.
While driving at 4th and 80 km/h (50 MPH) of manual mode Approx. 2160 - 2410 rpm Use the Subaru Select Monitor.
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 rpm - Use the Subaru Select Monitor.
4th of. manual mode, turbine speed sensor is 2,000 rpm (Read from Subaru Select Monitor) Approx. 1,900 - 2,100 rpm Use the Subaru Select Monitor.
Range lock solenoid output B55 15 Ignition switch ON, while stopping at "D" range Approx. Power Supply Voltage -1.2 V 7 - 21 Ω  
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 Less than 1.5 V
Inhibitor switch 4 input B55 13 Ignition switch ON, "P" range 4.0 - 5.0 V -  
Ignition switch ON, "D" range Less than 1.5 V
Control valve communication line B55 12 - - -  
Back-up light relay output B55 11 Ignition switch ON, "R" range 1.5 V 90 - 110S2(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 - 9Ω(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 rpm   Use the Subaru Select Monitor.
4th of manual mode, turbine speed sensor is 2,000 rpm (Read from Subaru Select Monitor) Approx. 1,900 - 2,100 rpm - Use the Subaru Select Monitor.
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 - 1.0V -  
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