Powertrain Control Module (PCM) Connector End View C1

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

Courtesy of GENERAL MOTORS CORP.

Powertrain Control Module (PCM) C1 Connector Parts Information

Connector Part Information

Terminal Part Information

Powertrain Control Module (PCM) C1 Connector Terminal Identification

Pin	Wire Color	Circuit No.	Function
1-2	-	-	Not Available
3	GY/BK	1694	4WD Low Signal
4-5	-	-	Not Available
6	D-GN/WH	459	A/C Compressor Clutch Relay Control
7	BN	1271	Low Reference
8	PU	1272	Low Reference
9-11	-	-	Not Available
12	PU	1589	Fuel Level Sensor Signal
13	PK	739	Ignition 1 Voltage
14	-	-	Not Available
15	PU	1807	Class 2 Serial Data
16	PU	1807	Class 2 Serial Data
17	GY	2700	5V
18	BN	4	Accessory Voltage
19	PK	639	Ignition 1 Voltage
20	OG	440	Battery Positive Voltage
21	D-GN/WH	817	Vehicle Speed Signal
22	WH	1310	EVAP Canister Vent Solenoid Control
23	BN/WH	6254	ISS Signal
24	D-GN	890	Fuel Tank Pressure Sensor Signal
25	-	-	Not Available
26	RD/BK	380	A/C Refrigerant Pressure Sensor Signal
27	D-BU	1161	APP Sensor 1 Signal
28	-	-	Not Available
29	BK	2759	Low Reference
30	WH/BK	1164	5V
31	-	-	Not Available
32	L-BU	20	Stop Lamp Supply Voltage
33	-	-	Not Available
34	BN	436	Air Pump Relay Control
35-36	-	-	Not Available
37	D-GN/WH	465	Fuel Pump Relay Control
38	WH/BK	448	Powertrain Diagnostic Enable
39	-	-	Not Available
40	BN/WH	419	MIL Control
41	L-BU	1162	APP Sensor 2 Signal
42	-	-	Not Available
43	TN	1274	5V
44	GY	1884	Cruise Control Switch Signal
45	-	-	Not Available
46	PU	420	TCC Brake Switch/Cruise Control Release Signal
47	GY	2709	5V
48	YE/BK	625	Starter Enable Relay Control
49-52	-	-	Not Available
53	BN/WH	379	CPP Switch Signal
54	D-GN	1433	PNP/Clutch Start Switch Signal
55	-	-	Not Available
56	BK	2751	Low Reference