Powertrain Control Module (PCM) Connector End Views

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

PCM Connector Terminal Identification C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12191489 80-Way F Micro-Pack 100W Series Sealed (NAT) (TPA-BLU)
Pin	Wire Color	Circuit No.	Function
1	BLK/WHT	451	Ground
2	LT GRN	1867	12-Volt Reference
3	PNK/BLK	1746	Fuel Injector 3 Control
4	LT GRN/BLK	1745	Fuel Injector 2 Control
5-6	-	-	Not Used
7	GRY	596	5-Volt Reference
8-10	-	-	Not Used
11	LT BLU	1876	Knock Sensor 2 Signal
12	DK BLU/WHT	1869	Crankshaft Position (CKP) Sensor Signal
13	ORN/BLK	463	Requested Torque Signal
14	TAN	800	Throttle Actuator Control Serial Data
15	ORN/BLK	1061	Throttle Actuator Control Serial Data
16	-	-	Not Used
17	DK BLU	1225	Transmission Fluid Pressure Switch Signal B
18	RED	1226	Transmission Fluid Pressure Switch Signal C
19	PNK	239	Ignition 1 Voltage
20	ORN	340	Battery Positive Voltage
21	YEL/BLK	1868	Low Reference
22	-	-	Not Used
23	GRY	720	Low Reference
24	BLK/WHT	451	Ground
25	TAN	1671	HO2S Low Signal Bank 2 Sensor 2
26	TAN	1667	HO2S Low Signal Bank 2 Sensor 1
27	BLK/WHT	451	Ground
28	TAN/WHT	1669	HO2S Low Signal Bank 1 Sensor 2
29	TAN/WHT	1653	HO2S Low Signal Bank 1 Sensor 1
30-31	-	-	Not Used
32	BLK/WHT	771	Transmission Range Switch Signal A
33	PPL	420	TCC Brake Switch Signal
34	WHT	776	Transmission Range Switch Signal P
35	GRY	48	CPP Switch Signal
36	BLK	1744	Fuel Injector 1 Control
37	YEL/BLK	846	Fuel Injector 6 Control
38	PNK/WHT	1101	Damping Lift/Dive Signal
39	-	-	Not Used
40	BLK/WHT	451	Ground
41	-	-	Not Used
42	DK GRN	335	Low Speed Cooling Fan Relay Control
43	RED/BLK	877	Fuel Injector 7 Control
44	LT BLU/BLK	844	Fuel Injector 4 Control
45	GRY	474	5-Volt Reference
46	GRY	598	5-Volt Reference
47	-	-	Not Used
48	GRY	416	5-Volt Reference
49-50	-	-	Not Used
51	DK BLU	496	Knock Sensor 1 Signal
52	-	-	Not Used
53	ORN/BLK	1057	Low Reference
54	ORN/BLK	469	Low Reference
55-56	-	-	Not Used
57	ORN	340	Battery Positive Voltage
58	DK GRN	1049	PCM Class 2 Serial Data
59	-	-	Not Used
60	BLK	407	Low Reference
61	PNK/BLK	632	Low Reference
62	GRY	847	Extended Travel Brake Switch Signal
63	BLK	452	Low Reference
64	BLK/WHT	451	Ground
65	PPL	1670	HO2S High Signal Bank 2 Sensor 2
66	PPL	1666	HO2S High Signal Bank 2 Sensor 1
67	BLK/WHT	451	Ground
68	PPL/WHT	1668	HO2S High Signal Bank 1 Sensor 2
69	PPL/WHT	1665	HO2S High Signal Bank 1 Sensor 1
70	BRN	1174	Oil Level Switch Signal
71	-	-	Not Used
72	YEL	772	Transmission Range Switch Signal B
73	BRN/WHT	633	Camshaft Position (CMP) Sensor Signal
74	YEL	410	Engine Coolant Temperature (ECT) Sensor Signal
75	-	-	Not Used
76	BLK/WHT	845	Fuel Injector 5 Control
77	DK BLU/WHT	878	Fuel Injector 8 Control
78	-	-	Not Used
79	GRY	587	Skip Shift Solenoid Control
79	WHT	687	3-2 Shift Solenoid Valve Control
80	BRN	718	Low Reference

PCM Connector Terminal Identification C2

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12191488 80-Way F Micro-Pack 100W Series Sealed (NAT) (TPA-GRN)
Pin	Wire Color	Circuit No.	Function
1	BLK/WHT	451	Ground
2	BRN	418	TCC PWM Solenoid Valve Control
3	-	-	Not Used
4	PPL	421	AIR Solenoid Control
5	TAN/BLK	464	Delivered Torque Signal
6	RED/BLK	1228	PC Solenoid valve High Control
7	-	-	Not Used
8	LT BLU/WHT	1229	PC Solenoid Valve Low Control
9	DK GRN/WHT	465	Fuel Pump Relay Control
10	WHT	121	Engine Speed Signal
11-13	-	-	Not Used
14	RED/BLK	380	A/C Refrigerant Pressure Sensor Signal
15	RED	225	Generator Turn On Signal
16	-	-	Not Used
17	DK GRN/WHT	762	A/C Request Signal (C60 only)
18	DK GRN	59	A/C Compressor Clutch Supply Voltage
19	-	-	Not Used
20	PPL	401	Signal Low - Front
21	YEL	400	Signal High - Front
22-24	-	-	Not Used
25	TAN	472	IAT Sensor Signal
26	PPL	2121	IC 1 Control
27	RED	2127	IC 7 Control
28	LT BLU/WHT	2126	IC 6 Control
29	DK GRN/WHT	2124	IC 4 Control
30	-	-	Not Used
31	YEL	492	MAF Sensor Signal
32	LT GRN	432	MAP Sensor Signal
33	DK BLU	473	High Speed Cooling Fan Relay Control
34	DK GRN/WHT	428	EVAP Canister Purge Solenoid Control
35	-	-	Not Used
36	BRN	436	AIR Pump Relay Control
37-38	-	-	Not Used
39	RED	631	12-Volt Reference
40	BLK/WHT	451	Ground
41	-	-	Not Used
42	TAN/BLK	422	TCC Solenoid Valve Control
43	DK GRN/WHT	459	A/C Compressor Clutch Relay Control
44	LT GRN	1652	Reverse Lockout Solenoid Control
45	WHT	1310	EVAP Canister Vent Solenoid Control
46	BRN/WHT	419	Malfunction Indicator Lamp (MIL) Control
47	WHT	375	Skip Shift Indicator Control (MM6)
47	YEL/BLK	1223	2-3 Shift Solenoid Valve Control (M30)
48	LT GRN	1222	1-2 Shift Solenoid Valve Control
49	-	-	Not Used
50	DK GRN/WHT	817	Vehicle Speed Signal
51	YEL/BLK	1227	TFT Sensor Signal
52	BRN	2391	HO2S Heater Low Control
53	RED/WHT	3223	HO2S Heater Low Control
54	DK BLU	1936	Fuel Level Sensor Signal
55-56	-	-	Not Used
57	PPL	719	Low Reference
58	TAN/WHT	331	Oil Pressure Sensor Signal
59	-	-	Not Used
60	BRN	2129	Low Reference
61	BRN/WHT	2130	Low Reference
62	GRY	773	Transmission Range Switch Signal C
63	PNK	1224	Transmission Fluid Pressure Switch Signal A
64	DK GRN	890	Fuel Tank Pressure Sensor Signal
65	-	-	Not Used
66	PPL/WHT	2128	IC 8 Control
67	RED/WHT	2122	IC 2 Control
68	DK GRN	2125	IC 5 Control
69	LT BLU	2123	IC 3 Control
70-71	-	-	Not Used
72	BLK/WHT	3113	HO2S Heater Low Control
73	LT BLU	1937	Fuel Level Sensor Signal (Secondary)
74	LT GRN	3212	HO2S Heater Low Control
75	GRY	23	Generator Field Duty Cycle Signal
76-79	-	-	Not Used
80	BLK	407	Low Reference