Powertrain Control Module (PCM) Connectors

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Powertrain Control Module (PCM) C1 Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15354782 65-Way F (BU)
Pin	Wire Color	Circuit No.	Function
1	L-BU	1162	APP Sensor 2 Signal
2	D-BU	1161	APP Sensor 1 Signal
3	L-BU	1320	Stop Lamp Supply Voltage
4	GY/BK	1694	4WD Low Signal (NP8)
5	GY/BK	87	Cruise Control Resume/Accel Switch Signal
6	D-BU	84	Cruise Control Set/Coast Switch Signal
7	BN/WH	419	MIL Control
8	OG/BK	510	Low Reference
9	-	-	Not Used
10	BN	1271	Low Reference
11	PU	1272	Low Reference
12	BK	2759	Low Reference
13	BK	2760	Low Reference
14	BK	2751	Low Reference
15-16	-	-	Not Used
17	GY	397	Cruise Control On Switch Signal
18	-	-	Not Used
19	PK	439	Ignition 1 Voltage
20	OG	440	Battery Positive Voltage
21	PK	1020	Ignition 0 Voltage
22	PU	1589	Fuel Level Sensor Signal - Primary
23-24	-	-	Not Used
25	YE/BK	1827	Vehicle Speed Signal
26-27	-	-	Not Used
28	PU	420	TCC Brake/Cruise Control Release Switch Signal
29	D-GN	1433	PNP Switch Signal
30	TN	472	IAT Sensor Signal
31	PU	806	Crank Voltage
32	D-GN/WH	817	Vehicle Speed Signal
33-40	-	-	Not Used
41	RD/BK	380	A/C Refrigerant Pressure Sensor Signal
42	D-GN/WH	459	A/C Compressor Clutch Relay Control
43	D-BU	2364	Cooling Fan Speed Signal
44	BN	436	Air Pump Relay Control (K18)
45-47	-	-	Not Used
48	YE/BK	625	Starter Enable Relay Control
49	WH	121	Engine Speed Signal
50-53	-	-	Not Used
54	GY	2700	5-Volt Reference
55	WH/BK	1164	5-Volt Reference
56	-	-	Not Used
57	WH/BK	2366	Cooling Fan Clutch Control
58	YE	710	Class 2 Serial Data
59	D-GN	1049	Class 2 Serial Data
60	GY	2365	Low Reference
61	D-GN	890	Fuel Tank Pressure Sensor Signal
62	GY	2709	5-Volt Reference
63	TN	1274	5-Volt Reference
64-65	-	-	Not Used

Powertrain Control Module (PCM) C2 Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15354781 65-Way F (D-GY)
Pin	Wire Color	Circuit No.	Function
1	PU	574	Low Reference
2	L-GN/BK	822	VSS Low Signal
3	D-GN/WH	465	Fuel Pump Relay Control - Primary
4	L-BU/WH	1229	Pressure Control Solenoid Valve Low Control
5	RD/BK	1228	Pressure Control Solenoid Valve High Control
6	YE/BK	846	Fuel Injector 6 Control
7	BK/WH	845	Fuel Injector 5 Control
8	L-BU/BK	844	Fuel Injector 4 Control
9	YE	573	CKP Sensor Signal
10	PU/WH	821	VSS High Signal
11	TN/BK	464	Delivered Torque Signal
12	OG/BK	463	Requested Torque Signal
13	-	-	Not Used
14	BK	1744	Fuel Injector 1 Control
15	L-GN/BK	1745	Fuel Injector 2 Control
16	PK/BK	1746	Fuel Injector 3 Control
17	WH	1310	EVAP Canister Vent Solenoid Control
18	TN/WH	1669	HO2S Low Signal - Bank 1 Sensor 2
19	YE	410	ECT Sensor Signal
20	D-GN/WH	428	EVAP Canister Purge Solenoid Control
21	-	-	Not Used
22	BN	418	TCC PWM Solenoid Valve Control
23	PU/WH	1665	HO2S High Signal - Bank 1 Sensor 1
24	-	-	Not Used
25	L-GN	432	MAP Sensor Signal
26	PU/WH	1668	HO2S High Signal - Bank 1 Sensor 2
27	WH	687	3-2 Shift Solenoid Valve Control
28	BK/WH	771	Transmission Range Switch Signal A
29	TN/BK	231	Oil Pressure Switch Signal
30	BK/WH	1423	HO2S Heater Low Control - Bank 1 Sensor 2
31	D-GN	676	HO2S Heater Low Control - Bank 1 Sensor 1
32	TN	1664	HO2S Low Signal - Bank 1 Sensor 1
33	-	-	Not Used
34	L-BU/WH	2126	IC 6 Control
35	L-BU	2123	IC 3 Control
36	-	-	Not Used
37	TN/BK	422	TCC Solenoid Valve Control
38	-	-	Not Used
39	BN	2198	Camshaft Position Solenoid Actuator High Control
40	D-GN	2125	IC 5 Control
41	D-GN/WH	2124	IC 4 Control
42	RD/WH	2122	IC 2 Control
43	-	-	Not Used
44	PU	2121	IC 1 Control
45-50	-	-	Not Used
51	GY	23	Generator Field Duty Cycle Signal
52-53	-	-	Not Used
54	OG/BK	469	Low Reference
55-56	-	-	Not Used
57	YE/BK	1223	2-3 Shift Solenoid Valve Control
58	BK	2761	Low Reference
59	L-GN	1222	1-2 Shift Solenoid Valve Control
60-61	-	-	Not Used
62	BK	2199	Low Reference
63	-	-	Not Used
64	GY	2704	5-Volt Reference
65	BK	450	Ground

Powertrain Control Module (PCM) C3 Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15354780 65-Way F (WH)
Pin	Wire Color	Circuit No.	Function
1	D-BU	496	KS 1 Signal
2	RD	225	Generator Turn On Signal
3	GY	2701	5-Volt Reference
4-7	-	-	Not Used
8	BK	2762	Low Reference
9	L-BU	1876	Knock Sensor 2 Signal
10	D-BU	1225	Transmission Fluid Pressure Switch Signal B
11	-	-	Not Used
12	YE	772	Transmission Range Switch Signal B
13	WH	776	Transmission Range Switch Signal P
14	PU	421	Air Solenoid Relay Control (K18)
15	-	-	Not Used
16	BK/WH	1704	Low Reference
17	PK	839	Ignition 1 Voltage
18	RD	631	12-Volt Reference
19	RD	1226	Transmission Fluid Pressure Switch Signal C
20	GY	773	Transmission Range Switch Signal C
21	PK	1224	Transmission Fluid Pressure Switch Signal A
22	YE/BK	1227	TFT Sensor Signal
23	GY	1716	Low Reference
24	-	-	Not Used
25	BN	582	TAC Motor Control - 2
26	YE	581	TAC Motor Control - 1
27	-	-	Not Used
28	D-GN	485	TP Sensor 1 Signal
29	PK/BK	632	Low Reference
30	PU	486	TP Sensor 2 Signal
31	GY	2303	Low Reference
32-48	-	-	Not Used
49	L-BU/BK	1688	5-Volt Reference
50	-	-	Not Used
51	BN/WH	633	CMP Sensor Signal
52-57	-	-	Not Used
58	PU	114	Low Oil Pressure Switch Signal
59	BK	2752	Low Reference
60	GY	597	5 Volt Reference
61-65	-	-	Not Used