Powertrain Control Module (PCM) Connector End View C1

Fig 1: PCM C1 Connector End View

Courtesy of GENERAL MOTORS CORP.

PCM C1 Connector Part Information

Connector Part Information

Terminal Part Information

Pins: 1, 2, 4, 7, 8, 10, 13, 14, 16- 22, 24, 26, 27, 29-33, 35- 37, 41, 45, 48, 54- 56
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

PCM C1 Connector Terminal Identification

Pin	Wire Color	Circuit No.	Function
1-6	-	-	Not Used
7	WH	17	Stop Lamp Switch Signal
8	-	-	Not Used
9	BK	2759	Low Reference
10-11	-	-	Not Used
12	BN/WH	419	MIL Control
13	D-GN/WH	465	Fuel Pump Relay Control
14-15	-	-	Not Used
16	D-GN	1049	PCM Class 2 Serial Data
17	-	-	Not Used
18	BN	1141	Ignition 3 Voltage
19	PK	439	Ignition 1 Voltage
20	OG	540	Battery Positive Voltage
21-24	-	-	Not Used
25	WH	121	Engine Speed Signal
26-28	-	-	Not Used
29	GY	1884	Cruise Control Switch Signal
30	-	-	Not Used
31	YE/BK	6032	Low Reference
32	GY	6031	5-Volt Reference 1
33	WH/BK	1164	5-Volt Reference 2
34	GY	2709	5-Volt Reference 1
35	TN	1274	5-Volt Reference 1
36	BN	1271	Low Reference
37	PU	1272	Low Reference
38	-	-	Not Used
39	D-GN	389	Vehicle Speed Signal
40	BN	5069	Powertrain Relay Control
41-43	-	-	Not Used
44	PU	1589	Fuel Level Sensor Signal
45	-	-	Not Used
46	OG	6030	Brake Booster Vacuum Signal
47	D-BU	1161	APP Sensor 1 Signal
48	D-GN	890	Fuel Tank Pressure Sensor Signal
49	L-BU	1162	APP Sensor 2 Signal
50-52	-	-	Not Used
53	D-GN/WH	459	A/C Compressor Clutch Relay Control
54	D-BU	473	High Speed Cooling Fan Relay Control
55	WH	1310	EVAP Canister Vent Solenoid Control
56	YE/BK	625	Starter Enable Relay Control