Function of TCU terminals

TCU TERMINAL FUNCTIONS CHART

Terminal No.	Terms	Descriptions
1	Battery	Main power supply
2	Battery	Main power supply
3	ON/START	ON/START
4	GND-P	Ground
5	GND-P	Ground
6	GND-C	Ground
7	STARTER RELAY	Starter relay control
8	B3-ON/OFF SOL	LC/B (Low Coast Brake) Solenoid actuation output signal
10	STOP LAMP SW	Stop lamp switch
11	INH SW3-MON	Inhibitor switch-3 break monitoring input signal
13	INH SW1	Inhibitor switch-1 input signal
14	ATF1	Oil temperature sensor-1 (Oil pan)
15	ATF2	Oil temperature sensor-2 (Torque converter outlet)
16	Manual-up shift SW	Sport mode up shift switch input signal
17	Manual-down shift SW	Sport mode down shift switch input signal
18	PSC2	H & LR/C (High & Low Reverse Clutch) Oil pressure switch input signal
19	PSB2	Fr/B (Front Brake) Oil pressure switch input signal
20	K-LINE	K-Line Communication
21	INH SW-2	Inhibitor switch-2 input signal
22	INH SW-4	Inhibitor switch-4 input signal
23	INH SW-3	Inhibitor switch-3 input signal
28	SELECTED GEAR DISPLAY	Selected gear output
29	SOLENOID SUPPLY	Solenoid power supply
38	GND-A	Ground
39	GND-A1	Ground
40	GND-C	Ground
43	C1-SOL	I/C (Input Clutch) Solenoid actuation output signal
44	L/U-SOL	L/U (Lock UP) Solenoid actuation output signal
45	C2-SOL	H & LR/C (High & Low Reverse Clutch) Solenoid actuation output signal
46	B2-SOL	Fr/B (Front Brake) Solenoid actuation output signal
47	PL-SOL	PL (Line Pressure Control) Solenoid actuation output signal
50	C3-SOL	D/C (Direct Clutch) Solenoid actuation output signal
53	REV-LAMP RELAY	Back up lamp relay control
54	TURBINE 2	Turbine sensor-2 input signal (1, 2, 3, 5th speed)
54	TURBIN1	Turbine sensor-1 input signal (4th speed)
56	VSP1	Vehicle speed sensor-1 (Output speed sensor) input signal
57	SEL2	D/C (Direct Clutch) Oil pressure switch signal and System clock signal in Sub-ROM communication
58	SEL3	I/C (Input Clutch) Oil pressure switch signal and System clock signal in Sub-ROM communication
61	Manual Mode select SW	Sport mode select switch input signal
64	SEL1	LC/B (Low Coast Brake) Oil pressure switch signal and System clock signal in Sub-ROM communication
65	CAN-L	CAN Low
73	SOLENOID SUPPLY	Solenoid power supply
87	CAN-H	CAN High
88	R range LAMP	R range lamp output signal
89	N range LAMP	N range lamp output signal
91	D range LAMP	D range lamp output signal
92	P range LAMP	P range lamp output signal
93	VIGN-OUT	Control valve power supply
94	DATABIT 1	Control valve communication line