Transmission Control Module Connector End View C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		1928403820 Conn 38F (BK)
Pin	Wire Color	Circuit No.	Function
1-21	-	-	Not Used
22	PK	1039	Ignition 1 Voltage
23	BK/WH	451	Ground
24	-	-	Not Used
25	TN/WH	2500	High Speed GMLAN Serial Data Bus+
26	TN	2501	High Speed GMLAN Serial Data Bus-
27-30	-	-	Not Used
31	PK	1039	Ignition 1 Voltage
32	BK/WH	451	Ground
33	OG	480	Battery Positive Voltage
34-38	-	-	Not Used