Powertrain Control Module (PCM) - C2

WARNING: This page is about a different car, the 2001 GMC Sierra and 2001 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.


Connector Part Information		12191488 80-Way F Micro-Pack 100W Sealed (NAT)
Pin	Wire Color	Circuit No.	Function
1	BLK/WHT	451	Ground
2	BRN	418	TCC PWM Solenoid Valve Control
3-5	-	-	Not Used
6	RED/BLK	1228	PC Solenoid Valve High Control (Sol. A)
7	RED	1676	EGR Valve Supply Voltage
8	LT BLU/WHT	1229	PC Solenoid Valve Low Control (Sol. A)
9	DK GRN/WHT	465	Fuel Pump Relay Control [- Primary]
10	WHT	121	Engine Speed Signal
11	DK BLU	604	A/C High Pressure Recirculation Switch Signal
12	-	-	Not Used
13	LT BLU/BLK	396	Cruise Control Engaged Signal
14	-	-	Not Used
15	BRN	25	Charge Indicator Control
16	GRY/BLK	1694	4WD Low Signal
17	DK GRN/WHT	2523	A/C Request Signal
18	-	-	Not Used
19	BLK/WHT	1695	Axle Switch Signal
20	LT GRN/BLK	822	VSS Low Signal
21	PPL/WHT	821	VSS High Signal
22 23	-	-	Not Used
24	DK BLU	417	TP Sensor Signal
25	TAN	472	IAT Sensor Signal
26	WHT	423	IC Timing Control
27 30	-	-	Not Used
31	YEL	492	MAF Sensor Signal
32	LT GRN	432	MAP Sensor Signal
33	DK GRN	1614	Recirculation Door 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	WHT	257	EGR Solenoid Control
42	TAN/BLK	422	TCC Solenoid Valve Control
43	DK GRN/WHT	459	A/C Clutch Relay Control
44	-	-	Not Used
45	WHT	1310	EVAP Canister Vent Solenoid Control
46	BRN/WHT	419	MIL Control
47	YEL/BLK	1223	(2-3 Shift Solenoid or Shift Solenoid B) Valve Control
48	LT GRN	1222	(1-2 Shift Solenoid or Shift Solenoid A) Valve Control
49	YEL/BLK	1827	Vehicle Speed Signal
50	DK GRN/WHT	817	Vehicle Speed Signal
51	YEL/BLK	1227	TFT Sensor Signal
52	GRY	23	Generator Field Duty Cycle Signal
53	-	-	Not Used
54	PPL	1589	Fuel Level Sensor Signal [- Primary]
55	DK GRN	603	A/C Low Pressure Switch Signal
56	-	-	Not Used
57	BLK	552	Low Reference
58 61	-	-	Not Used
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
65-75	-	-	Not Used
76	LT GRN/WHT	1749	IAC Coil B High Control
77	LT GRN/BLK	444	IAC Coil B Low Control
78	LT BLU/BLK	1748	IAC Coil A Low Control
79	LT BLU/WHT	1747	IAC Coil A High Control
80	-	-	Not Used