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  OEM: 15452125 Service: 88953346 Description: 56-Way F Micro-Pack 64 Series (BU)

Terminal Part Information  Terminal/Tray: See Terminal Repair Kit Core/Insulation Crimp: See Terminal Repair Kit Release Tool/Test Probe: See Terminal Repair Kit

PCM C1 Connector End View

Pin	Wire Color	Circuit No.	Function
1-3	-	-	Not Used
4	GY	2700	5-Volt Reference
5	-	-	Not Used
6	BN/WH	419	MIL Control
7	BK/WH	2751	Low Reference
8	BK	2759	Low Reference
9	-	-	Not Used
10	WH	1310	EVAP Canister Vent Solenoid Control
11	GY	397	Cruise Control On Switch Signal
12-14	-	-	Not Used
15	D-GN	1049	Class 2 Serial Data
16-17	-	-	Not Used
18	BN	1141	Ignition 0 Voltage
19	PK	439	Ignition 1 Voltage
20	OG	540	Battery Positive Voltage
21	WH	121	Engine Speed Signal (NW9)
22	D-GN	389	Vehicle Speed Signal
23	YE/BK	625	Starter Enable Relay Control
24	BN	5069	Powertrain Relay Coil Control
25	GY/BK	87	Cruise Control Resume/Accel Switch Signal
26	D-GN	890	Fuel Tank Pressure Sensor Signal
27-30	-	-	Not Used
31	RD/BK	380	A/C Refrigerant Pressure Sensor Signal
32	WH	17	Stop Lamp Switch Signal
33	D-GN/WH	459	A/C Compressor Clutch Relay Control
34-36	-	-	Not Used
37	D-GN/WH	465	Fuel Pump Relay Coil Control
38	-	-	Not Used
39	PK	84	Cruise Control Set/Coast Switch Signal
40-42	-	-	Not Used
43	PU	1589	Fuel Level Sensor Signal
44-45	-	-	Not Used
46	PU	420	Torque Converter Clutch Brake Switch Signal
47	-	-	Not Used
48	D-GN	335	Low Speed Cooling Fan Relay Control
49	-	-	Not Used
50	D-BU	473	High Speed Cooling Fan Relay Control
51	YE	5	Crank Voltage
52	-	-	Not Used
53	GY	2709	5-Volt Reference
54-56	-	-	Not Used