Transmission Control Module (TCM) Connector End View C2

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15326594 Siemens Socket Header 37-way (BU)
Pin	Wire Color	Circuit No.	Function
22	D-BU/WH	1231	ISS Low Signal
23	PU	401	OSS Low Signal
24	OG/BK	586	Low Reference
25	WH	1804	TCC Release Switch Signal
26-32	-	-	Not Used
33	TN	2501	High Speed GMLan Serial Data Bus +
34	TN/BK	2500	High Speed GMLan Serial Data Bus -
35	WH	776	Transmission Range Signal P
36	-	-	Not Used
37	L-GN	1222	1-2 Shift Solenoid Valve Control
38	-	-	Not Used
39	BK/WH	451	Ground
40-42	-	-	Not Used
43	RD/BK	1230	ISS High Signal
44	YE	400	OSS High Signal
45-47	-	-	Not Used
48	L-BU	20	Stop Lamp Switch Signal
49-50	-	-	Not Used
51	YE/BK	1227	Transmission Fluid Temperature Sensor Signal
52	PU	1319	Engine/ Radio Serial Data K-Line
53-58	-	-	Not Used