DSM/TCU

Subpages

• DSM/TCU/TCU Numbers
• DSM/TCU/JG331A002C

Info

• https://www.dsmtuners.com/threads/1g-tcu-guide.277172/
• https://www.dsmtuners.com/threads/1g-tcu-awd-or-fwd.161911/#post-1342644
• https://www.dsmtuners.com/threads/1g-tcu-compatibility.379984/
• https://www.dsmtuners.com/threads/90-1g-tcu-wiring-diagram.503723/#post-153590821
• https://www.dsmtalk.com/threads/compatible-tcus.186535/
• http://www.vfaq.com/mods/Trannies.html

Lists

• http://www.foreignecurepair.com/laserTCM.htm
• http://www.foreignecurepair.com/mitsubishi.htm

Codes

• https://web.archive.org/web/20070104065324/http://www.plymouthlaser.com/tcucodes.htm

Connector Pinout

1991-1992 (F4A22[2])

TCU side/ATSG numbering/Facing the back of the TCU

Con A					Con B									Con C
101	102	103	104	105	1	2	3	4	5	6	7	8	9	51	52	53	54	55	56	57
106	107	108	109	110	10	11	12	13	14	15	16	17	18	58	59	60	61	62	63	64

TCU side/PCB Numbering/Facing the back of the TCU

Con A					Con B									Con C
A1	A2	A3	A4	A5	B1	B2	B3	B4	B5	B6	B7	B8	B9	C1	C2	C3	C4	C5	C6	C7
A6	A7	A8	A9	A10	B10	B11	B12	B13	B14	B15	B16	B17	B18	C8	C9	C10	C11	C12	C13	C14

ATSG #	PCB #	ATSG Desc.	Circuit	Signal
101	A1	Torque converter clutch solenoid
102	A2	Shift control solenoid valve A
103	A3	-
104	A4	Power source
105	A5	Ground	GND	GND
106	A6	Pressure control solenoid valve
107	A7	Shift control solenoid valve B
108	A8	Engine communication signal
109	A9	Power source
110	A10	Ground	GND	GND
1	B1	Ground	GND	GND
2	B2	-
3	B3	Accelerator switch	Pull-up to 12V	0v -or- 12v
4	B4	-
5	B5	On-board diagnostic output
6	B6	Air conditioning compressor clutch relay signal
7	B7	Engine communication signal	Not connected??
8	B8	Diagnostic test mode control terminal
9	B9	Engine communication signal
10	B10	Power source (backup)
11	B11	Kickdown servo switch
12	B12	Closed throttle position switch		0v -or- 12v
13	B13	-
14	B14	Oil temperature sensor (Low temperature side)
15	B15	Oil temperature sensor (High temperature side)
16	B16	Throttle position sensor
17	B17	Sensor ground
18	B18	Vehicle-speed reed switch
51	C1	Park/neutral position switch(P/NPS) - "P" Park position
52	C2	P/NPS - "R" Reverse position
53	C3	P/NPS - "N" Neutral position
54	C4	P/NPS - "D" Drive position
55	C5	P/NPS - "2" Second position
56	C6	P/NPS - "L" Low position
57	C7	Overdrive switch
58	C8	Pulse generator B
59	C9	Pulse generator B
60	C10	Pulse generator A
61	C11	Pulse generator A
62	C12	Ground	GND	GND
63	C13	Ignition pulse
64	C14	Power mode signal