Powertrain Control Module (PCM) Connectors

WARNING: This page is about a different car, the 2005 GMC Canyon and 2005 Chevrolet Colorado. 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		15430216 (2WD) 15430217 (4WD) 56-Way F Micro 64 Sealed (BU)
Pin	Wire Color	Circuit No.	Function
1-2	-	-	Not Used
3	D-GN/WH	1559	4 LO Switch - Signal (4WD)
4-5	-	-	Not Used
6	D-GN/WH	459	A/C Compressor Relay Control
7	BN	1271	Low Reference
8	PU	1272	Low Reference
9-11	-	-	Not Used
12	PU	1589	Fuel Level Sensor Signal
13	PK	739	Ignition 1 Voltage
14	-	-	Not Used
15	PU	1807	Class 2 Serial Data
16	PU	1807	Class 2 Serial Data
17	GY	2700	5-Volt Reference
18	BN	4	Accessory Voltage
19	PK	639	Ignition 1 Voltage
20	OG	440	Battery Positive Voltage
21	-	-	Not Used
22	WH	1310	EVAP Canister Vent Solenoid Control
23	-	-	Not Used
24	D-GN	890	Fuel Tank Pressure Sensor Signal
25	YE/BK	1827	Vehicle Speed Signal
26	RD/BK	380	A/C Refrigerant Pressure Sensor Signal
27	D-BU	1161	APP Sensor 1 Signal
28	-	-	Not Used
29	BK	2759	Low Reference
30	WH/BK	1164	5-Volt Reference
31	-	-	Not Used
32	L-BU	20	Stop Lamp Supply Voltage
33-36	-	-	Not Used
37	D-GN/WH	465	Fuel Pump Relay Control
38	WH/BK	448	Powertrain Diagnostic Enable
39	-	-	Not Used
40	BN/WH	419	MIL Control
41	L-BU	1162	APP Sensor 2 Signal
42	-	-	Not Used
43	TN	1274	5-Volt Reference
44	GY	1884	Cruise Control Set/Coast and Resume/Accelerate Switch Signal
45	-	-	Not Used
46	PU	420	TCC Brake Switch/Cruise Control Release Signal
47	GY	2709	5-Volt Reference
48	YE/BK	625	Starter Enable Relay Control
49-52	-	-	Not Used
53	BN/WH	379	CPP Switch Signal (MA5)
54	D-GN	1433	PNP/Clutch Start Switch Signal
55	-	-	Not Used
56	BK	2751	Low Reference

Powertrain Control Module (PCM) C2 Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15445051 73-Way F Micro 64 Sealed (BK)
Pin	Wire Color	Circuit No.	Function
1	RD	225	Generator Turn On Signal
2	D-GN	485	TP Sensor 1 Signal
3-5	-	-	Not Used
6	GY	2701	5-Volt Reference
7	PU	486	TP Sensor 2 Signal
8	GY	2704	5-Volt Reference
9	L-BU/BK	1688	5-Volt Reference
10-13	-	-	Not Used
14	PK/BK	632	Low Reference
15-16	-	-	Not Used
17	YE	573	CKP Sensor 1 Signal
18	PU	574	Low Reference
19	WH/BK	2257	Low Reference
20	OG/BK	469	Low Reference
21	-	-	Not Used
22	RD	631	12-Volt Reference
23-25	-	-	Not Used
26	BK	630	Camshaft Position Signal
27-31	-	-	Not Used
32	TN/WH	1653	HO2S Low Signal
33	BK	1744	Fuel Injector 1 Control
34	-	-	Not Used
35	YE	410	ECT Sensor Signal
36	BK/WH	1704	Low Reference
37	L-GN	432	MAP Sensor Signal
38	-	-	Not Used
39	BK	2752	Low Reference
40	PU	2121	IC 1 Control
41	YE	492	MAF Sensor Signal
42	D-GN/WH	2124	IC 4 Control
43-44	-	-	Not Used
45	GY	23	Generator Field Duty Cycle Signal
46	-	-	Not Used
47	GY	2702	5-Volt Reference
48	D-GN	1655	HO2S High Signal
49-50	-	-	Not Used
51	TN	472	IAT Sensor Signal
52	BK	2761	Low Reference
53	PK/BK	1746	Fuel Injector 3 Control
54	L-GN/BK	1745	Fuel Injector 2 Control
55	L-BU/BK	844	Fuel Injector 4 Control
56-57	-	-	Not Used
58	D-GN	676	HO2S Heater High Control
59	L-BU	2123	IC 3 Control
60	RD/WH	2122	IC 2 Control
61-63	-	-	Not Used
64	BK	2760	Low Reference
65	BN	582	TAC Motor Control - 2
66	YE	581	TAC Motor Control - 1
67	-	-	Not Used
68	D-BU	496	Knock Sensor Signal
69	GY	1716	Low Reference
70-72	-	-	Not Used
73	BK/WH	451	Ground

Powertrain Control Module (PCM) C3 Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15430212 56-Way F Micro 64 Sealed (GY)
Pin	Wire Color	Circuit No.	Function
1	PK	1224	Transmission Fluid Pressure Switch Signal A (M30)
2	GY	773	Transmission Range Switch Signal C (M30)
3	-	-	Not Used
4	TN/WH	1669	HO2S Low Signal
5	-	-	Not Used
6	RD/BK	1228	PC Solenoid Valve High Control (M30)
7	YE/BK	1227	TFT Sensor Signal (M30)
8-14	-	-	Not Used
15	TN/BK	231	Oil Pressure Switch Signal
16	-	-	Not Used
17	BK	2762	Low Reference (M30)
18	-	-	Not Used
19	PU/WH	1668	HO2S High Signal
20	BK/WH	771	Transmission Range Switch Signal A (M30)
21	WH	687	3-2 Shift Solenoid Valve Control (M30)
22-24	-	-	Not Used
25	TN/BK	422	TCC Solenoid Valve Control (M30)
26-29	-	-	Not Used
30	RD	1226	Transmission Fluid Pressure Switch Signal C (M30)
31-32	-	-	Not Used
33	L-GN	1222	1-2 Shift Solenoid Valve Control (M30)
34	TN/BK	464	Delivered Torque Signal (2WD)
35	YE/BK	1223	2-3 Shift Solenoid Valve Control (M30)
36	PU	114	Low Reference
37	D-GN/WH	428	EVAP Canister Purge Solenoid Control
38	-	-	Not Used
39	BN	418	TCC PWM Solenoid Valve Control (M30)
40-42	-	-	Not Used
43	D-BU	1225	Transmission Fluid Pressure Switch Signal B (M30)
44	PU	401	Signal Low - Front
45	YE	400	Signal High - Front
46	BK/WH	1423	HO2S Heater Low Control
47	OG/BK	463	Requested Torque Signal (2WD)
48	L-BU/WH	1229	PC Solenoid Valve Low Control (M30)
49	-	-	Not Used
50	YE	772	Transmission Range Switch Signal B (M30)
51	-	-	Not Used
52	WH	776	Transmission Range Switch Signal P (M30)
53-56	-	-	Not Used