Powertrain Control Module (PCM) - C1

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Powertrain Control Module (PCM) C1 Connector End View

Courtesy of GENERAL MOTORS CORP.

Powertrain Control Module (PCM) C1 Connector Parts Information

Connector Part Information

OEM: 15492639
Service: See Catalog
Description: 80-Way F Micro-Pack 100 W Sealed (BU)

Powertrain Control Module (PCM) - C1 Connector Terminal Identification

Pin	Wire Color	Circuit No.	Function
1	BK/WH	451	Ground
2	L-GN	1867	12-Volt Reference
3	PK/BK	1746	Fuel Injector 3 Control
4	L-GN/BK	1745	Fuel Injector 2 Control
5-6	-	-	Not Used
7	GY	2705	5-Volt Reference
8-10	-	-	Not Used
11	L-BU	1876	Knock Sensor 2 Signal
12	D-BU/WH	1869	CKP Sensor Signal
13	-	-	Not Used
14	OG/BK	1061	UART Serial Data
15	D-BU/WH	774	UART Serial Data
16	-	-	Not Used
17	D-BU	1225	Transmission Fluid Pressure Switch Signal B
18	RD	1226	Transmission Fluid Pressure Switch Signal C
19	PK	439	Ignition 1 Voltage
20	OG	440	Battery Positive Voltage
21	YE/BK	1868	Low Reference
22	-	-	Not Used
23	BK	470	Low Reference
24	BK/WH	451	Ground
25	TN	1671	HO2S Low Signal - Bank 2 Sensor 2
26	TN	1667	HO2S Low Signal - Bank 2 Sensor 1
27	BK/WH	451	Ground
28	TN/WH	1669	HO2S Low Signal - Bank 1 Sensor 2
29	TN	1664	HO2S Low Signal - Bank 1 Sensor 1
30-31	-	-	Not Used
32	BK/WH	771	Transmission Range Switch Signal A
33	PU	420	TCC Brake Switch Signal
34	WH	776	Transmission Range Switch Signal P
35	-	-	Not Used
36	BK	1744	Fuel Injector 1 Control
37	YE/BK	846	Fuel Injector 6 Control
38	-	-	Not Used
39	YE/BK	625	Starter Enable Relay Control
40	BK/WH	451	Ground
41-42	-	-	Not Used
43	RD/BK	877	Fuel Injector 7 Control
44	L-BU/BK	844	Fuel Injector 4 Control
45	GY	2700	5-Volt Reference
46	GY	474	5-Volt Reference
47	-	-	Not Used
48	GY	597	5-Volt Reference
49-50	-	-	Not Used
51	D-BU	496	Knock Sensor 1 Signal
52	-	-	Not Used
53	BK	407	Low Reference
54	OG/BK	469	Low Reference
55-56	-	-	Not Used
57	OG	440	Battery Positive Voltage
58	D-GN	1049	Class 2 Serial Data
59	YE	710	Class 2 Serial Data
60	-	-	Not Used
61	PK/BK	632	Low Reference
62	-	-	Not Used
63	BK	2755	Low Reference
64	BK/WH	451	Ground
65	PU	1670	HO2S High Signal - Bank 2 Sensor 2
66	PU	1666	HO2S High Signal - Bank 2 Sensor 1
67	BK/WH	451	Ground
68	PU/WH	1668	HO2S High Signal - Bank 1 Sensor 2
69	PU/WH	1665	HO2S High Signal - Bank 1 Sensor 1
70	BN	1174	Oil Level Switch Signal
71	-	-	Not Used
72	YE	772	Transmission Range Switch Signal B
73	BN/WH	633	CMP Sensor Signal
74	YE	410	ECT Sensor Signal
75	PK	1020	Ignition 0 Voltage
76	BK/WH	845	Fuel Injector 5 Control
77	D-BU/WH	878	Fuel Injector 8 Control
78	-	-	Not Used
79	WH	687	3-2 Shift Solenoid Valve Control
80	GY	720	Low Reference