Automatic Transmission Related Connector End Views

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Transmission Control Module C1 Connector Terminal Identification

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		1928403820 Conn 38F (BK)
Pin	Wire Color	Circuit No.	Function
1-15	-	-	Not Used
16	BN/WH	2960	Keyword Serial Data
17-21	-	-	Not Used
22	PK	639	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	639	Ignition 1 Voltage
32	BK/WH	451	Ground
33	OR	1440	Battery Positive Voltage
34	-	-	Not Used
35	TN/WH	2500	High Speed GMLAN Serial Data Bus+
36	TN	2501	High Speed GMLAN Serial Data Bus-
37-38	-	-	Not Used

Transmission Control Module C2 Terminal Identification

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		1928403311 Conn 38F (BK)
Pin	Wire Color	Circuit No.	Function
1-5	-	-	Not Used
6	TN/WH	771	Transmission Range Switch Signal A
7	GY	773	Transmission Range Switch Signal C
8	PU	898	Shift Solenoid Valve 3 High Control
9-11	-	-	Not Used
12	D-BU	5509	TCC Pressure Control Solenoid Low Reference
13	OR/WH	2527	Shift Solenoid Valve 5 High Control
14	YE/BK	2879	Shift Solenoid Valve 4 High Control
15	PU/WH	5510	Line Pressure Control Solenoid Valve Low Control
16	YE	772	Transmission Range Switch Signal B
17	WH	776	Transmission Range Switch Signal P
18-20	-	-	Not Used
21	TN/WH	585	Transmission Fluid Temperature Sensor Signal
22	D-BU/WH	1231	ISS Sensor Signal
23	PU	401	OSS Sensor Signal
24	YE/BK	1223	Shift Solenoid Valve 2 High Control
25	D-GN	5511	TCC Pressure Control Solenoid Valve High Control
26	WH	2880	Shift Pressure Control Solenoid Valve High Control
27-30	-	-	Not Used
31	OR/BK	586	Transmission Fluid Temperature Sensor Low Reference
32	OR/BK	1230	ISS Sensor High Reference
33	YE	400	OSS Sensor High Reference
34	L-GN	1222	Shift Solenoid Valve 1 High Control
35	WH	1994	Line Pressure Control Solenoid Valve High Control
36	GY	5508	Shift Pressure Control Solenoid Valve Low Control
37-38	-	-	Not Used

Stop Lamp Switch Terminal Identification - Upper

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12033701 2 Way F Metri-Pack 480 Series (GY)
Pin	Wire Color	Circuit No.	Function
A	OG	140	Battery Positive Voltage
B	L-BU	20	Stop Lamp Switch Signal

Stop Lamp Switch Terminal Identification - Lower

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12041433 2-way F Metri-Pack 280 Series (BK)
Pin	Wire Color	Circuit No.	Function
A	PK	339	Ignition 1 Voltage
B	VT	420	TCC Brake Switch/Cruise Control Release Signal